/* ═══════════════════════════════════════════════════════
   🎮 PRACTICAL KHATA — Complete Design System
   Gaming Heavy UI + All New Sections
   ═══════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Sora:wght@400;600;700;800;900&family=Noto+Sans+Bengali:wght@400;600;700&display=swap');

/* ─── CSS Variables ─── */
:root {
    --neon-blue: #00f0ff;
    --neon-purple: #b744ff;
    --neon-pink: #ff006e;
    --neon-green: #00ff87;
    --electric-blue: #5b7fff;
    --dark-bg: #0a0e1a;
    --darker-bg: #050810;
    --card-bg: rgba(15, 20, 35, 0.85);
    --glass-bg: rgba(255, 255, 255, 0.05);
    --border-glow: rgba(91, 127, 255, 0.4);
    /* New system vars */
    --bg: #07080f;
    --surface: #0e1120;
    --surface2: #141727;
    --border: rgba(255, 255, 255, 0.07);
    --primary: #5b7fff;
    --primary2: #7c3aed;
    --accent: #00e5b0;
    --warning: #f59e0b;
    --danger: #ec4899;
    --text: #e8ecf4;
    --muted: #6b7a99;
    --white: #ffffff;
    --radius: 16px;
    --radius-lg: 24px;
    --shadow: 0 8px 40px rgba(0, 0, 0, 0.6);
    --glow: 0 0 40px rgba(91, 127, 255, 0.25);
}

*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Sora', 'Noto Sans Bengali', -apple-system, sans-serif;
    background: var(--darker-bg);
    color: #e0e8ff;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

a {
    text-decoration: none;
    color: inherit;
}

img {
    max-width: 100%;
    display: block;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

::-webkit-scrollbar {
    width: 5px;
}

::-webkit-scrollbar-track {
    background: var(--bg);
}

::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 3px;
}


/* ═══════════════════════════════════════════════════════
   🌌 ANIMATED PARTICLE BACKGROUND
   ═══════════════════════════════════════════════════════ */
.particles-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: linear-gradient(135deg, #0a0e1a 0%, #1a1033 50%, #0a0e1a 100%);
    overflow: hidden;
}

.particles-bg::before {
    content: '';
    position: absolute;
    width: 200%;
    height: 200%;
    background-image:
        radial-gradient(circle at 20% 50%, rgba(91, 127, 255, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 0, 110, 0.12) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(0, 255, 135, 0.1) 0%, transparent 50%);
    animation: particles-float 20s ease-in-out infinite;
}

@keyframes particles-float {

    0%,
    100% {
        transform: translate(0, 0) rotate(0deg);
    }

    33% {
        transform: translate(-30px, -30px) rotate(5deg);
    }

    66% {
        transform: translate(30px, 30px) rotate(-5deg);
    }
}


/* ═══════════════════════════════════════════════════════
   🎯 NAVBAR
   ═══════════════════════════════════════════════════════ */
.navbar {
    background: rgba(10, 14, 26, 0.95) !important;
    backdrop-filter: blur(20px) !important;
    border-bottom: 2px solid var(--border-glow) !important;
    box-shadow: 0 8px 32px rgba(91, 127, 255, 0.2);
    padding: 1rem 0 !important;
    position: sticky !important;
    top: 0 !important;
    z-index: 1000 !important;
    transition: all 0.3s ease !important;
}

.navbar.scrolled {
    box-shadow: 0 8px 32px rgba(91, 127, 255, 0.4) !important;
}

.navbar-brand {
    font-family: 'Sora', sans-serif !important;
    font-weight: 900 !important;
    font-size: 1.5rem !important;
    background: linear-gradient(135deg, var(--neon-blue), var(--neon-purple)) !important;
    -webkit-background-clip: text !important;
    -webkit-text-fill-color: transparent !important;
    background-clip: text !important;
    transition: all 0.3s ease !important;
}

.navbar-brand:hover {
    transform: scale(1.05);
    filter: drop-shadow(0 0 15px var(--neon-blue));
}

.nav-link {
    color: #b8c5ff !important;
    font-weight: 600 !important;
    margin: 0 0.3rem !important;
    padding: 0.5rem 1.2rem !important;
    border-radius: 25px !important;
    transition: all 0.3s ease !important;
    position: relative;
    overflow: hidden;
}

.nav-link:hover {
    background: linear-gradient(135deg, rgba(91, 127, 255, 0.2), rgba(183, 68, 255, 0.2)) !important;
    color: var(--neon-blue) !important;
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(91, 127, 255, 0.3);
}


/* ═══════════════════════════════════════════════════════
   🔴 OFFER BANNER
   ═══════════════════════════════════════════════════════ */
.offer-banner {
    background: linear-gradient(90deg, #7c3aed, #ec4899, #f59e0b);
    padding: 10px 16px;
    position: relative;
    z-index: 10000;
}

.offer-banner-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    max-width: 1200px;
    margin: 0 auto;
}

.offer-fire {
    font-size: 1.2rem;
}

.offer-text {
    font-size: 0.88rem;
    font-weight: 600;
    color: white;
    text-align: center;
}

.offer-price {
    font-size: 1rem;
    font-weight: 900;
    background: rgba(255, 255, 255, 0.25);
    padding: 2px 10px;
    border-radius: 20px;
}

.offer-cta-btn {
    background: white;
    color: #7c3aed;
    font-weight: 800;
    font-size: 0.8rem;
    padding: 5px 16px;
    border-radius: 20px;
    white-space: nowrap;
    transition: transform 0.2s;
}

.offer-cta-btn:hover {
    transform: scale(1.05);
    color: #7c3aed;
}

.offer-close {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 0.8rem;
    display: grid;
    place-items: center;
    transition: background 0.2s;
    margin-left: 8px;
}

.offer-close:hover {
    background: rgba(255, 255, 255, 0.4);
}


/* ═══════════════════════════════════════════════════════
   ⏳ COUNTDOWN STRIP
   ═══════════════════════════════════════════════════════ */
.countdown-strip {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 12px 0;
}

.countdown-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.countdown-label {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--muted);
}

.timer-boxes {
    display: flex;
    align-items: center;
    gap: 8px;
}

.timer-box {
    background: var(--surface2);
    border: 1px solid var(--border-glow);
    border-radius: 10px;
    padding: 6px 14px;
    text-align: center;
    min-width: 52px;
}

.timer-box span {
    display: block;
    font-size: 1.4rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--neon-blue), var(--neon-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.timer-box small {
    font-size: 0.6rem;
    color: var(--muted);
    font-weight: 600;
    text-transform: uppercase;
}

.timer-sep {
    font-size: 1.4rem;
    font-weight: 900;
    color: var(--primary);
}

.countdown-wa {
    background: linear-gradient(135deg, var(--primary), var(--primary2));
    color: white;
    font-weight: 700;
    font-size: 0.85rem;
    padding: 8px 20px;
    border-radius: 50px;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 4px 16px rgba(91, 127, 255, 0.4);
}

.countdown-wa:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(91, 127, 255, 0.6);
    color: white;
}


/* ═══════════════════════════════════════════════════════
   🦸 HERO
   ═══════════════════════════════════════════════════════ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 100px 0 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    animation: orbFloat 12s ease-in-out infinite;
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: rgba(91, 127, 255, 0.18);
    top: -100px;
    left: -100px;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: rgba(124, 58, 237, 0.15);
    bottom: -80px;
    right: 100px;
    animation-delay: 4s;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: rgba(0, 229, 176, 0.1);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: 8s;
}

@keyframes orbFloat {

    0%,
    100% {
        transform: scale(1) translate(0, 0);
    }

    33% {
        transform: scale(1.1) translate(20px, -20px);
    }

    66% {
        transform: scale(0.9) translate(-20px, 20px);
    }
}

.grid-overlay {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(91, 127, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(91, 127, 255, 0.04) 1px, transparent 1px);
    background-size: 60px 60px;
}

.hero-inner {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-text {
    animation: fadeLeft 0.9s cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes fadeLeft {
    from {
        opacity: 0;
        transform: translateX(-60px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 20px;
}

.eyebrow .dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    display: inline-block;
}

.main-title {
    font-size: clamp(2.8rem, 5vw, 4.5rem);
    font-weight: 900;
    line-height: 1.08;
    color: var(--white);
    margin-bottom: 28px;
    letter-spacing: -0.02em;
}

.shine-text {
    background: linear-gradient(135deg, var(--neon-blue) 0%, var(--neon-green) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.feature-list {
    list-style: none;
    margin-bottom: 40px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.05rem;
    color: #b0bbd6;
    font-weight: 500;
}

.feature-list li .icon {
    font-size: 1.2rem;
    width: 36px;
    height: 36px;
    background: var(--surface2);
    border: 1px solid var(--border-glow);
    border-radius: 10px;
    display: grid;
    place-items: center;
    flex-shrink: 0;
}

.hero-cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.cta-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    background: linear-gradient(135deg, var(--primary), var(--primary2));
    color: white;
    font-size: 1rem;
    font-weight: 700;
    border-radius: 50px;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 4px 20px rgba(91, 127, 255, 0.4);
    letter-spacing: 0.02em;
}

.cta-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 32px rgba(91, 127, 255, 0.6);
    color: white;
}

.cta-primary.large {
    padding: 16px 40px;
    font-size: 1.1rem;
}

.cta-whatsapp {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    background: transparent;
    border: 1.5px solid #25d366;
    color: #25d366;
    font-size: 1rem;
    font-weight: 700;
    border-radius: 50px;
    transition: background 0.2s, transform 0.2s;
}

.cta-whatsapp:hover {
    background: rgba(37, 211, 102, 0.1);
    transform: translateY(-3px);
    color: #25d366;
}

.cta-secondary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    background: rgba(255, 255, 255, 0.06);
    border: 1.5px solid var(--border);
    color: var(--text);
    font-size: 1rem;
    font-weight: 700;
    border-radius: 50px;
    transition: background 0.2s, transform 0.2s;
}

.cta-secondary:hover {
    background: rgba(255, 255, 255, 0.12);
    transform: translateY(-3px);
    color: var(--white);
}

.cta-secondary.large {
    padding: 16px 36px;
    font-size: 1.05rem;
}

.stats-row {
    display: flex;
    align-items: center;
    gap: 24px;
}

.stat {
    text-align: center;
}

.stat-num {
    font-size: 2rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--neon-blue), var(--neon-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat p {
    font-size: 0.78rem;
    color: var(--muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-top: 4px;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border);
}

.hero-visual {
    display: flex;
    justify-content: center;
    animation: fadeRight 0.9s 0.15s cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes fadeRight {
    from {
        opacity: 0;
        transform: translateX(60px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.book-wrapper {
    position: relative;
    animation: bookFloat 6s ease-in-out infinite;
}

@keyframes bookFloat {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-20px);
    }
}

.book-glow {
    position: absolute;
    inset: -20px;
    background: radial-gradient(circle, rgba(91, 127, 255, 0.2) 0%, transparent 70%);
    border-radius: 50%;
    animation: glowPulse 4s ease-in-out infinite;
}

@keyframes glowPulse {

    0%,
    100% {
        opacity: 0.6;
        transform: scale(1);
    }

    50% {
        opacity: 1;
        transform: scale(1.05);
    }
}

.book-img {
    width: 100%;
    max-width: 420px;
    border-radius: 20px;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.7);
    border: 2px solid var(--border-glow);
}

.book-placeholder {
    width: 280px;
    height: 360px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.book-mock {
    display: flex;
    height: 100%;
    border-radius: 4px 16px 16px 4px;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.7), 0 0 0 1px var(--border-glow);
    overflow: hidden;
}

.book-spine {
    width: 28px;
    background: linear-gradient(180deg, #1e3a8a, #1e40af);
    border-radius: 4px 0 0 4px;
}

.book-cover {
    flex: 1;
    background: linear-gradient(135deg, #1e3a8a 0%, #0f172a 100%);
    padding: 28px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.book-title-mock {
    font-size: 1.6rem;
    font-weight: 900;
    color: var(--accent);
    line-height: 1.2;
}

.book-subject-tags {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.book-subject-tags span {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.5);
    background: rgba(255, 255, 255, 0.08);
    padding: 3px 10px;
    border-radius: 20px;
    width: fit-content;
}

.float-badge {
    position: absolute;
    background: var(--surface2);
    border: 1px solid var(--border-glow);
    border-radius: 40px;
    padding: 8px 18px;
    font-size: 0.8rem;
    font-weight: 700;
    backdrop-filter: blur(10px);
    white-space: nowrap;
    box-shadow: var(--shadow);
}

.badge-top {
    top: -16px;
    right: -24px;
    color: var(--warning);
}

.badge-bottom {
    bottom: 20px;
    left: -28px;
    color: var(--accent);
}

.scroll-hint {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--muted);
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--primary), transparent);
    animation: scrollDrop 2s ease-in-out infinite;
}

@keyframes scrollDrop {
    0% {
        opacity: 0;
        transform: scaleY(0);
        transform-origin: top;
    }

    50% {
        opacity: 1;
        transform: scaleY(1);
    }

    100% {
        opacity: 0;
        transform: scaleY(1) translateY(20px);
    }
}


/* ═══════════════════════════════════════════════════════
   📢 MARQUEE
   ═══════════════════════════════════════════════════════ */
.marquee-strip {
    overflow: hidden;
    border-top: 1px solid var(--border-glow);
    border-bottom: 1px solid var(--border-glow);
    background: var(--surface);
    padding: 14px 0;
}

.marquee-track {
    display: flex;
    gap: 32px;
    width: max-content;
    animation: marquee 25s linear infinite;
    align-items: center;
}

.marquee-track span {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text);
    white-space: nowrap;
}

.marquee-track .mdot {
    color: var(--muted);
}

@keyframes marquee {
    from {
        transform: translateX(0);
    }

    to {
        transform: translateX(-50%);
    }
}


/* ═══════════════════════════════════════════════════════
   SECTION HEADERS (shared)
   ═══════════════════════════════════════════════════════ */
.section-head {
    text-align: center;
    margin-bottom: 56px;
}

.section-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--neon-blue);
    margin-bottom: 12px;
}

.section-title {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 900;
    color: var(--white);
    letter-spacing: -0.01em;
    margin-bottom: 16px;
}

.title-bar {
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--neon-green));
    border-radius: 2px;
    margin: 0 auto;
}

.section-sub {
    color: var(--muted);
    font-size: 0.95rem;
    margin-top: 16px;
}


/* ═══════════════════════════════════════════════════════
   💰 PRICE CALCULATOR
   ═══════════════════════════════════════════════════════ */
.calc-section {
    padding: 100px 0;
    background: var(--surface);
    border-top: 1px solid var(--border-glow);
}

.special-offer-card {
    position: relative;
    background: linear-gradient(135deg, rgba(91, 127, 255, 0.12), rgba(124, 58, 237, 0.12));
    border: 1px solid rgba(91, 127, 255, 0.4);
    border-radius: var(--radius-lg);
    padding: 32px;
    margin-bottom: 48px;
    overflow: hidden;
}

.special-offer-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--primary2), var(--neon-green));
}

.soc-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--warning), #f97316);
    color: white;
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    padding: 4px 14px;
    border-radius: 20px;
    margin-bottom: 16px;
}

.soc-content {
    display: flex;
    gap: 32px;
    align-items: center;
    flex-wrap: wrap;
}

.soc-left {
    flex: 1;
}

.soc-left h3 {
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--white);
    margin-bottom: 8px;
}

.soc-left p {
    color: var(--muted);
    font-size: 0.9rem;
    margin-bottom: 12px;
}

.soc-includes {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.soc-includes span {
    background: rgba(91, 127, 255, 0.15);
    border: 1px solid rgba(91, 127, 255, 0.3);
    color: var(--neon-blue);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 3px 12px;
    border-radius: 20px;
}

.soc-right {
    text-align: center;
    flex-shrink: 0;
}

.soc-price {
    font-size: 2.5rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--neon-green), var(--neon-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.soc-save {
    font-size: 0.85rem;
    font-weight: 700;
    color: #25d366;
    margin: 8px 0;
}

.soc-btn {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary), var(--primary2));
    color: white;
    font-weight: 700;
    font-size: 0.9rem;
    padding: 12px 28px;
    border-radius: 50px;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 4px 20px rgba(91, 127, 255, 0.4);
}

.soc-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(91, 127, 255, 0.6);
    color: white;
}

.calc-grid {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 32px;
    align-items: start;
}

.calc-sub-title {
    font-size: 1rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 16px;
}

.subject-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.subject-item {
    display: flex;
    align-items: center;
    gap: 12px;
    background: rgba(10, 14, 26, 0.7);
    border: 1.5px solid var(--border);
    border-radius: 12px;
    padding: 12px 16px;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
    user-select: none;
}

.subject-item:hover {
    border-color: rgba(91, 127, 255, 0.5);
    background: rgba(91, 127, 255, 0.06);
}

.subject-item.selected {
    border-color: var(--primary);
    background: rgba(91, 127, 255, 0.12);
    box-shadow: 0 0 20px rgba(91, 127, 255, 0.15);
}

.subject-item input {
    display: none;
}

.si-icon {
    font-size: 1.3rem;
    width: 36px;
    text-align: center;
    flex-shrink: 0;
}

.si-info {
    flex: 1;
}

.si-name {
    display: block;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--white);
}

.si-detail {
    display: block;
    font-size: 0.75rem;
    color: var(--muted);
}

.si-price {
    font-size: 0.95rem;
    font-weight: 800;
    color: var(--neon-green);
    flex-shrink: 0;
}

.si-check {
    width: 22px;
    height: 22px;
    border-radius: 6px;
    border: 2px solid var(--border);
    display: grid;
    place-items: center;
    flex-shrink: 0;
    color: transparent;
    transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.subject-item.selected .si-check {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

.calc-actions-row {
    display: flex;
    gap: 12px;
    margin-top: 16px;
}

.select-all-btn,
.clear-btn {
    flex: 1;
    padding: 10px;
    border: none;
    border-radius: 10px;
    font-weight: 700;
    font-size: 0.85rem;
    cursor: pointer;
    transition: transform 0.2s;
    font-family: inherit;
}

.select-all-btn {
    background: linear-gradient(135deg, var(--primary), var(--primary2));
    color: white;
}

.clear-btn {
    background: var(--surface2);
    color: var(--muted);
    border: 1px solid var(--border);
}

.select-all-btn:hover,
.clear-btn:hover {
    transform: translateY(-1px);
}

.bill-card {
    background: rgba(10, 14, 26, 0.9);
    border: 2px solid rgba(91, 127, 255, 0.3);
    border-radius: var(--radius-lg);
    overflow: hidden;
    position: sticky;
    top: 100px;
}

.bill-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
}

.bill-header h4 {
    font-size: 1rem;
    font-weight: 800;
    color: var(--white);
}

.bill-count {
    font-size: 0.8rem;
    color: var(--neon-blue);
    font-weight: 700;
    background: rgba(91, 127, 255, 0.1);
    padding: 3px 12px;
    border-radius: 20px;
}

.bill-items {
    padding: 16px 24px;
    min-height: 80px;
}

.bill-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 24px;
    gap: 8px;
}

.bill-empty-icon {
    font-size: 2rem;
    opacity: 0.5;
}

.bill-empty p {
    font-size: 0.85rem;
    color: var(--muted);
}

.bill-item-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
    font-size: 0.85rem;
}

.bill-item-row:last-child {
    border: none;
}

.bill-item-row span:first-child {
    color: var(--text);
}

.bill-item-row span:last-child {
    color: var(--neon-green);
    font-weight: 700;
}

.bill-summary {
    padding: 16px 24px;
    border-top: 1px solid var(--border);
}

.bill-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 0;
    font-size: 0.9rem;
    color: var(--muted);
}

.free-tag {
    color: #25d366;
    font-weight: 700;
}

.bill-divider {
    height: 1px;
    background: var(--border);
    margin: 8px 0;
}

.bill-row.total {
    font-size: 1rem;
    font-weight: 800;
    color: var(--white);
}

.total-amount {
    font-size: 1.4rem;
    background: linear-gradient(135deg, var(--neon-green), var(--neon-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.order-wa-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin: 0 24px 16px;
    padding: 14px;
    background: #25d366;
    color: white;
    font-weight: 800;
    font-size: 0.95rem;
    border-radius: 12px;
    transition: background 0.2s, transform 0.2s;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.3);
}

.order-wa-btn:hover {
    background: #1da855;
    transform: translateY(-2px);
    color: white;
    box-shadow: 0 8px 30px rgba(37, 211, 102, 0.5);
}

.payment-note {
    margin: 0 24px 24px;
    background: rgba(91, 127, 255, 0.08);
    border: 1px solid rgba(91, 127, 255, 0.2);
    border-radius: 12px;
    padding: 16px;
}

.pn-title {
    font-size: 0.8rem;
    font-weight: 800;
    color: var(--neon-blue);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.pn-methods {
    display: flex;
    gap: 12px;
    margin-bottom: 12px;
}

.pn-method {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
    background: var(--surface2);
    border-radius: 8px;
    padding: 8px 12px;
}

.pn-icon {
    font-size: 1.2rem;
}

.pn-method strong {
    display: block;
    font-size: 0.8rem;
    font-weight: 800;
    color: var(--white);
}

.pn-method span {
    font-size: 0.75rem;
    color: var(--neon-green);
    font-weight: 700;
}

.pn-steps {
    font-size: 0.78rem;
    color: var(--muted);
    text-align: center;
}


/* ═══════════════════════════════════════════════════════
   📚 PRODUCTS SECTION
   ═══════════════════════════════════════════════════════ */
.products-section {
    padding: 100px 0;
    background: var(--bg);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 28px;
}

.pcard {
    background: var(--card-bg);
    border: 2px solid rgba(91, 127, 255, 0.2);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.35s, border-color 0.35s;
    backdrop-filter: blur(10px);
}

.pcard:hover {
    transform: translateY(-12px);
    border-color: var(--neon-blue);
    box-shadow: 0 24px 60px rgba(91, 127, 255, 0.3), 0 0 40px rgba(183, 68, 255, 0.2);
}

.pcard-image {
    position: relative;
    height: 240px;
    overflow: hidden;
    background: var(--surface2);
}

.pcard-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.pcard:hover .pcard-image img {
    transform: scale(1.07);
}

.pcard-image-placeholder {
    width: 100%;
    height: 100%;
    display: grid;
    place-items: center;
    font-size: 3.5rem;
    background: linear-gradient(135deg, var(--surface2), #1a2540);
}

.pcard-overlay {
    position: absolute;
    inset: 0;
    background: rgba(7, 8, 15, 0.75);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s;
    backdrop-filter: blur(4px);
}

.pcard:hover .pcard-overlay {
    opacity: 1;
}

.quick-add {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: var(--primary);
    color: white;
    font-weight: 700;
    font-size: 0.9rem;
    border-radius: 50px;
    transition: background 0.2s, transform 0.2s;
    transform: translateY(8px);
    box-shadow: 0 0 20px rgba(91, 127, 255, 0.5);
}

.pcard:hover .quick-add {
    transform: translateY(0);
}

.quick-add:hover {
    background: var(--primary2);
    color: white;
}

.pcard-body {
    padding: 20px 24px 24px;
    background: rgba(10, 14, 26, 0.7);
}

.pcard-meta {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.level-badge {
    display: inline-block;
    padding: 3px 12px;
    background: rgba(91, 127, 255, 0.15);
    border: 1px solid rgba(91, 127, 255, 0.3);
    color: var(--neon-blue);
    border-radius: 20px;
    font-size: 0.72rem;
    font-weight: 700;
}

.category-tag {
    display: inline-block;
    padding: 3px 12px;
    background: rgba(0, 229, 176, 0.1);
    border: 1px solid rgba(0, 229, 176, 0.25);
    color: var(--accent);
    border-radius: 20px;
    font-size: 0.72rem;
    font-weight: 700;
}

.pcard-name {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 16px;
    line-height: 1.4;
}

.pcard-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.pcard-price {
    font-size: 1.6rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--neon-green), var(--neon-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.add-btn {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), var(--primary2));
    border-radius: 50%;
    display: grid;
    place-items: center;
    color: white;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 4px 16px rgba(91, 127, 255, 0.4);
}

.add-btn:hover {
    transform: scale(1.15) rotate(90deg);
    box-shadow: 0 6px 24px rgba(91, 127, 255, 0.6);
    color: white;
}

.empty-state {
    grid-column: 1/-1;
    text-align: center;
    padding: 60px;
    color: var(--muted);
}

.empty-icon {
    font-size: 3rem;
    margin-bottom: 16px;
}

.section-cta {
    text-align: center;
    margin-top: 56px;
}

.view-all-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 36px;
    border: 1.5px solid rgba(91, 127, 255, 0.4);
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text);
    transition: border-color 0.2s, background 0.2s, transform 0.2s;
}

.view-all-btn:hover {
    border-color: var(--neon-blue);
    background: rgba(91, 127, 255, 0.08);
    transform: translateY(-2px);
    color: var(--neon-blue);
}


/* ═══════════════════════════════════════════════════════
   ✨ WHY CHOOSE US
   ═══════════════════════════════════════════════════════ */
.why-section {
    padding: 100px 0;
    background: var(--surface);
    border-top: 1px solid var(--border-glow);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 24px;
}

.feature-card {
    padding: 32px 28px;
    background: rgba(10, 14, 26, 0.8);
    border: 2px solid rgba(91, 127, 255, 0.15);
    border-radius: var(--radius-lg);
    transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
    backdrop-filter: blur(10px);
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: var(--fc, var(--primary));
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4), 0 0 30px color-mix(in srgb, var(--fc) 20%, transparent);
}

.feature-icon-wrap {
    width: 64px;
    height: 64px;
    background: color-mix(in srgb, var(--fc) 15%, transparent);
    border: 1px solid color-mix(in srgb, var(--fc) 30%, transparent);
    border-radius: 18px;
    display: grid;
    place-items: center;
    margin-bottom: 20px;
    color: var(--fc);
}

.feature-card h4 {
    font-size: 1rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 10px;
}

.feature-card p {
    font-size: 0.88rem;
    color: var(--muted);
    line-height: 1.7;
}


/* ═══════════════════════════════════════════════════════
   💳 PAYMENT STEPS
   ═══════════════════════════════════════════════════════ */
.payment-section {
    padding: 100px 0;
    background: var(--bg);
    border-top: 1px solid var(--border-glow);
}

.payment-steps-grid {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    flex-wrap: wrap;
    justify-content: center;
}

.pay-step {
    flex: 1;
    min-width: 180px;
    max-width: 220px;
    text-align: center;
    padding: 24px 16px;
    background: var(--card-bg);
    border: 2px solid rgba(91, 127, 255, 0.2);
    border-radius: var(--radius-lg);
    transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
    backdrop-filter: blur(10px);
}

.pay-step:hover {
    transform: translateY(-6px);
    border-color: var(--neon-blue);
    box-shadow: 0 10px 40px rgba(91, 127, 255, 0.2);
}

.pay-step-num {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary), var(--primary2));
    border-radius: 50%;
    display: grid;
    place-items: center;
    font-size: 0.9rem;
    font-weight: 900;
    color: white;
    margin: 0 auto 12px;
    box-shadow: 0 0 20px rgba(91, 127, 255, 0.4);
}

.pay-step-icon {
    font-size: 2rem;
    margin-bottom: 12px;
}

.pay-step h4 {
    font-size: 0.9rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 8px;
}

.pay-step p {
    font-size: 0.82rem;
    color: var(--muted);
}

.pay-arrow {
    font-size: 1.5rem;
    color: var(--neon-blue);
    align-self: center;
    flex-shrink: 0;
    opacity: 0.6;
}

.pay-numbers {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 12px;
}

.pay-num-card {
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 8px 12px;
    text-align: left;
}

.pay-num-card span {
    display: block;
    font-size: 0.72rem;
    color: var(--muted);
    margin-bottom: 2px;
}

.pay-num-card strong {
    font-size: 0.9rem;
    color: var(--white);
}

.pay-num-card.bkash {
    border-color: rgba(236, 72, 153, 0.3);
}

.pay-num-card.bkash strong {
    color: #ec4899;
}

.pay-num-card.nagad {
    border-color: rgba(37, 211, 102, 0.3);
}

.pay-num-card.nagad strong {
    color: #25d366;
}

.pay-wa-btn {
    display: inline-block;
    margin-top: 12px;
    background: #25d366;
    color: white;
    font-weight: 700;
    font-size: 0.82rem;
    padding: 8px 18px;
    border-radius: 50px;
    transition: background 0.2s, transform 0.2s;
}

.pay-wa-btn:hover {
    background: #1da855;
    transform: translateY(-2px);
    color: white;
}


/* ═══════════════════════════════════════════════════════
   ⭐ TESTIMONIALS
   ═══════════════════════════════════════════════════════ */
.testimonials-section {
    padding: 100px 0;
    background: var(--surface);
    border-top: 1px solid var(--border-glow);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

.tcard {
    background: var(--card-bg);
    border: 2px solid rgba(91, 127, 255, 0.15);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
    backdrop-filter: blur(10px);
}

.tcard:hover {
    transform: translateY(-6px);
    border-color: var(--neon-blue);
    box-shadow: 0 10px 40px rgba(91, 127, 255, 0.2);
}

.tcard-stars {
    color: #f59e0b;
    font-size: 1.1rem;
    letter-spacing: 2px;
    margin-bottom: 16px;
    text-shadow: 0 0 10px rgba(245, 158, 11, 0.5);
}

.tcard-text {
    font-size: 0.9rem;
    color: #b0bbd6;
    line-height: 1.7;
    margin-bottom: 20px;
    font-style: italic;
}

.tcard-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.tcard-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--primary2));
    display: grid;
    place-items: center;
    font-size: 0.85rem;
    font-weight: 800;
    color: white;
    flex-shrink: 0;
    box-shadow: 0 0 20px rgba(91, 127, 255, 0.4);
}

.tcard-author strong {
    display: block;
    font-size: 0.9rem;
    font-weight: 800;
    color: var(--white);
}

.tcard-author span {
    font-size: 0.78rem;
    color: var(--muted);
}


/* ═══════════════════════════════════════════════════════
   ❓ FAQ
   ═══════════════════════════════════════════════════════ */
.faq-section {
    padding: 100px 0;
    background: var(--bg);
    border-top: 1px solid var(--border-glow);
}

.faq-list {
    max-width: 750px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.faq-item {
    background: var(--card-bg);
    border: 2px solid rgba(91, 127, 255, 0.15);
    border-radius: 12px;
    overflow: hidden;
    transition: border-color 0.2s;
    backdrop-filter: blur(10px);
}

.faq-item.open {
    border-color: var(--neon-blue);
    box-shadow: 0 0 30px rgba(91, 127, 255, 0.15);
}

.faq-q {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 24px;
    background: none;
    border: none;
    color: var(--white);
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    text-align: left;
    font-family: inherit;
    transition: color 0.2s;
    gap: 12px;
}

.faq-q:hover {
    color: var(--neon-blue);
}

.faq-icon {
    font-size: 1.3rem;
    font-weight: 400;
    color: var(--neon-blue);
    flex-shrink: 0;
    line-height: 1;
}

.faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease, padding 0.35s ease;
    font-size: 0.88rem;
    color: var(--muted);
    line-height: 1.7;
    padding: 0 24px;
}

.faq-item.open .faq-a {
    max-height: 200px;
    padding: 0 24px 20px;
}


/* ═══════════════════════════════════════════════════════
   🚀 CTA BANNER
   ═══════════════════════════════════════════════════════ */
.cta-banner {
    position: relative;
    padding: 100px 0;
    overflow: hidden;
}

.cta-banner-bg {
    position: absolute;
    inset: 0;
    background: var(--surface);
}

.cta-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
}

.cta-orb-1 {
    width: 400px;
    height: 400px;
    background: rgba(91, 127, 255, 0.15);
    top: -100px;
    left: -100px;
}

.cta-orb-2 {
    width: 300px;
    height: 300px;
    background: rgba(0, 255, 135, 0.12);
    bottom: -80px;
    right: 0;
}

.cta-banner-inner {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 48px;
    flex-wrap: wrap;
}

.cta-text h2 {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 900;
    color: var(--white);
    margin-bottom: 12px;
}

.cta-text p {
    color: var(--muted);
    font-size: 1rem;
    line-height: 1.7;
}

.cta-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    align-items: center;
    flex-shrink: 0;
}


/* ═══════════════════════════════════════════════════════
   📱 WHATSAPP FLOAT
   ═══════════════════════════════════════════════════════ */
.wa-float {
    position: fixed;
    bottom: 28px;
    right: 28px;
    width: 65px;
    height: 65px;
    background: linear-gradient(135deg, #25d366, #128c7e);
    border-radius: 50%;
    display: grid;
    place-items: center;
    box-shadow: 0 8px 32px rgba(37, 211, 102, 0.5);
    z-index: 9999;
    transition: transform 0.3s, box-shadow 0.3s;
    animation: waPulse 3s ease-in-out infinite;
}

.wa-float:hover {
    transform: scale(1.15) rotate(8deg);
    box-shadow: 0 12px 48px rgba(37, 211, 102, 0.8);
}

@keyframes waPulse {

    0%,
    100% {
        box-shadow: 0 8px 32px rgba(37, 211, 102, 0.5);
    }

    50% {
        box-shadow: 0 8px 48px rgba(37, 211, 102, 0.8);
        transform: scale(1.05);
    }
}

.wa-tooltip {
    position: absolute;
    right: 74px;
    background: var(--surface2);
    border: 1px solid var(--border-glow);
    color: var(--white);
    font-size: 0.8rem;
    font-weight: 700;
    padding: 6px 14px;
    border-radius: 8px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
}

.wa-float:hover .wa-tooltip {
    opacity: 1;
}


/* ═══════════════════════════════════════════════════════
   🃏 BOOTSTRAP PRODUCT CARDS (other pages)
   ═══════════════════════════════════════════════════════ */
.product-card {
    background: var(--card-bg);
    border: 2px solid rgba(91, 127, 255, 0.2);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    backdrop-filter: blur(10px);
}

.product-card:hover {
    transform: translateY(-12px) scale(1.02);
    border-color: var(--neon-blue);
    box-shadow: 0 20px 60px rgba(91, 127, 255, 0.4), 0 0 40px rgba(183, 68, 255, 0.2);
}

.product-card .card-img-top {
    transition: all 0.5s ease;
    filter: brightness(0.9);
}

.product-card:hover .card-img-top {
    transform: scale(1.1);
    filter: brightness(1.1);
}

.card-body {
    background: rgba(10, 14, 26, 0.7);
    position: relative;
    z-index: 1;
}

/* Badges */
.badge {
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 700;
}

.badge.bg-primary {
    background: linear-gradient(135deg, #5b7fff, #7c3aed) !important;
}

.badge.bg-success {
    background: linear-gradient(135deg, #00ff87, #00d084) !important;
    color: #000 !important;
}

/* Buttons (Bootstrap override) */
.btn {
    font-weight: 700;
    border-radius: 30px;
    transition: all 0.3s ease;
}

.btn-primary {
    background: linear-gradient(135deg, #5b7fff, #7c3aed) !important;
    border: none !important;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(91, 127, 255, 0.5) !important;
}

.btn-success {
    background: linear-gradient(135deg, #00ff87, #00d084) !important;
    border: none !important;
    color: #000 !important;
}

.btn-danger {
    background: linear-gradient(135deg, #ff006e, #ff0080) !important;
    border: none !important;
}

/* Forms */
.form-control,
.form-select {
    background: rgba(15, 20, 35, 0.8) !important;
    border: 2px solid rgba(91, 127, 255, 0.3) !important;
    border-radius: 12px !important;
    color: #e0e8ff !important;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--neon-blue) !important;
    box-shadow: 0 0 20px rgba(91, 127, 255, 0.3) !important;
    background: rgba(15, 20, 35, 0.95) !important;
}

/* Cards */
.card {
    background: var(--card-bg) !important;
    border: 2px solid rgba(91, 127, 255, 0.2) !important;
    border-radius: 16px !important;
}

.card-header {
    background: linear-gradient(135deg, rgba(91, 127, 255, 0.3), rgba(183, 68, 255, 0.3)) !important;
    border-bottom: 2px solid rgba(91, 127, 255, 0.3) !important;
    font-weight: 700;
}

/* Alerts */
.alert-success {
    background: rgba(0, 255, 135, 0.1) !important;
    border-color: var(--neon-green) !important;
    color: var(--neon-green) !important;
}

.alert-danger {
    background: rgba(255, 0, 110, 0.1) !important;
    border-color: var(--neon-pink) !important;
    color: var(--neon-pink) !important;
}

/* Cart */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: linear-gradient(135deg, #25d366, #128c7e);
    width: 70px;
    height: 70px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.2rem;
    color: white;
    box-shadow: 0 10px 40px rgba(37, 211, 102, 0.5);
    z-index: 1000;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.whatsapp-float:hover {
    transform: scale(1.2) rotate(10deg);
    color: white;
}

/* Footer */
footer {
    margin-top: 5rem;
    border-top: 2px solid rgba(91, 127, 255, 0.3);
}

.bg-darker {
    background: rgba(5, 8, 16, 0.95);
    backdrop-filter: blur(10px);
}


/* ═══════════════════════════════════════════════════════
   🌟 SCROLL REVEAL
   ═══════════════════════════════════════════════════════ */
.will-reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.will-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}


/* ═══════════════════════════════════════════════════════
   📱 RESPONSIVE
   ═══════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
    .calc-grid {
        grid-template-columns: 1fr;
    }

    .bill-card {
        position: static;
    }
}

@media (max-width: 900px) {
    .hero-inner {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 48px;
    }

    .hero-visual {
        order: -1;
    }

    .hero-cta {
        justify-content: center;
    }

    .stats-row {
        justify-content: center;
    }

    .feature-list li {
        justify-content: center;
    }

    .eyebrow {
        justify-content: center;
    }

    .cta-banner-inner {
        flex-direction: column;
        text-align: center;
    }

    .cta-actions {
        justify-content: center;
    }

    .payment-steps-grid {
        flex-direction: column;
        align-items: center;
    }

    .pay-arrow {
        transform: rotate(90deg);
    }

    .pay-step {
        max-width: 100%;
        width: 100%;
    }
}

@media (max-width: 768px) {
    .cart-card {
        grid-template-columns: 80px 1fr;
        gap: 1rem;
    }

    .cart-right {
        grid-column: 1 / -1;
        justify-self: center;
        margin-top: 1rem;
    }

    .whatsapp-float {
        width: 55px;
        height: 55px;
        font-size: 1.6rem;
    }

    .soc-content {
        flex-direction: column;
    }

    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .countdown-inner {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
}

@media (max-width: 600px) {
    .hero {
        padding: 60px 0 40px;
    }

    .products-grid {
        grid-template-columns: 1fr;
    }

    .features-grid {
        grid-template-columns: 1fr 1fr;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 400px) {
    .features-grid {
        grid-template-columns: 1fr;
    }

    .timer-boxes {
        gap: 4px;
    }

    .timer-box {
        min-width: 44px;
        padding: 4px 8px;
    }
}


/* ═══════════════════════════════════════════════════════
   ✨ UTILITY
   ═══════════════════════════════════════════════════════ */
.text-gradient {
    background: linear-gradient(135deg, var(--neon-blue), var(--neon-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.glow-text {
    text-shadow: 0 0 20px currentColor;
}

.glass-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
}

/* ═══════════════════════════════════════════════════════
   ✨ STYLE PATCH — Roboto Font + Better Sizing + Aesthetic
   এই কোডটা তোমার style.css ফাইলের একদম শেষে paste করো
   ═══════════════════════════════════════════════════════ */

/* ── 1. ROBOTO FONT (replaces Sora) ── */
@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;700;900&family=Noto+Sans+Bengali:wght@400;600;700&display=swap');

body,
html,
.navbar,
.nav-link,
h1,
h2,
h3,
h4,
h5,
h6,
p,
span,
div,
button,
input,
textarea,
select,
label {
    font-family: 'Roboto', 'Noto Sans Bengali', -apple-system, sans-serif !important;
}

.navbar-brand {
    font-family: 'Roboto', sans-serif !important;
    font-weight: 900 !important;
    letter-spacing: -0.5px;
}


/* ── 2. PRODUCT CARD IMAGE — Fixed proper size ── */
.product-card .card-img-top,
.card-img-top {
    width: 100%;
    height: 220px !important;
    object-fit: cover !important;
    object-position: center !important;
    border-radius: 14px 14px 0 0 !important;
    transition: transform 0.5s ease, filter 0.5s ease !important;
    display: block !important;
}

.product-card:hover .card-img-top {
    transform: scale(1.06) !important;
    filter: brightness(1.1) saturate(1.1) !important;
}

/* Featured product images on home page */
.featured-img,
.prod-img,
[class*="product"] img,
[class*="card"] img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    object-position: center;
    border-radius: 12px;
    display: block;
}


/* ── 3. TYPOGRAPHY — Better font sizes ── */
h1 {
    font-size: clamp(1.8rem, 4vw, 3rem) !important;
    font-weight: 900 !important;
    line-height: 1.2 !important;
}

h2 {
    font-size: clamp(1.4rem, 3vw, 2.2rem) !important;
    font-weight: 700 !important;
    line-height: 1.3 !important;
}

h3 {
    font-size: clamp(1.1rem, 2.5vw, 1.6rem) !important;
    font-weight: 700 !important;
}

h4 {
    font-size: clamp(1rem, 2vw, 1.3rem) !important;
    font-weight: 600 !important;
}

h5 {
    font-size: clamp(0.95rem, 1.8vw, 1.1rem) !important;
    font-weight: 600 !important;
}

h6 {
    font-size: 0.95rem !important;
    font-weight: 600 !important;
}

p,
li,
span,
td,
th {
    font-size: clamp(0.875rem, 1.5vw, 1rem) !important;
    line-height: 1.7 !important;
}

.card-title {
    font-size: 1rem !important;
    font-weight: 700 !important;
}

.card-text {
    font-size: 0.875rem !important;
    line-height: 1.6 !important;
}

.badge {
    font-size: 0.75rem !important;
}

.btn {
    font-size: 0.9rem !important;
    font-weight: 600 !important;
    letter-spacing: 0.3px;
}

.nav-link {
    font-size: 0.9rem !important;
    font-weight: 500 !important;
}

small,
.small {
    font-size: 0.8rem !important;
}


/* ── 4. SMOOTH PAGE ENTRANCE ANIMATION ── */
@keyframes pageFadeIn {
    from {
        opacity: 0;
        transform: translateY(16px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

main,
section,
.container>*:first-child {
    animation: pageFadeIn 0.5s ease forwards;
}


/* ── 5. CARD HOVER — Smoother & more aesthetic ── */
.card,
.product-card {
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1),
        box-shadow 0.35s ease,
        border-color 0.35s ease !important;
    will-change: transform;
}

.product-card:hover {
    transform: translateY(-10px) scale(1.015) !important;
    box-shadow: 0 24px 60px rgba(91, 127, 255, 0.35),
        0 0 0 1px rgba(0, 229, 176, 0.2) !important;
    border-color: rgba(0, 229, 176, 0.5) !important;
}


/* ── 6. BUTTON ANIMATIONS ── */
.btn {
    position: relative;
    overflow: hidden;
    transition: transform 0.25s ease, box-shadow 0.25s ease !important;
}

.btn::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.12);
    transform: translateX(-100%) skewX(-15deg);
    transition: transform 0.4s ease;
}

.btn:hover::after {
    transform: translateX(120%) skewX(-15deg);
}

.btn:hover {
    transform: translateY(-2px) !important;
}

.btn:active {
    transform: translateY(0px) scale(0.97) !important;
}


/* ── 7. IMAGE LOADING — Fade in smoothly ── */
img {
    opacity: 0;
    transition: opacity 0.4s ease;
}

img.loaded,
img[src]:not([src=""]) {
    opacity: 1;
    animation: imgReveal 0.5s ease forwards;
}

@keyframes imgReveal {
    from {
        opacity: 0;
        filter: blur(4px);
    }

    to {
        opacity: 1;
        filter: blur(0);
    }
}


/* ── 8. NAVBAR SCROLL SHRINK ── */
.navbar {
    transition: padding 0.3s ease, box-shadow 0.3s ease !important;
}

.navbar.scrolled {
    padding: 0.5rem 0 !important;
    box-shadow: 0 4px 30px rgba(91, 127, 255, 0.4) !important;
}


/* ── 9. STAGGERED CARD REVEAL ── */
@keyframes cardReveal {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.97);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.col-md-4:nth-child(1) .product-card,
.col-md-4:nth-child(1) .card {
    animation: cardReveal 0.5s 0.1s ease both;
}

.col-md-4:nth-child(2) .product-card,
.col-md-4:nth-child(2) .card {
    animation: cardReveal 0.5s 0.2s ease both;
}

.col-md-4:nth-child(3) .product-card,
.col-md-4:nth-child(3) .card {
    animation: cardReveal 0.5s 0.3s ease both;
}

.col-md-4:nth-child(4) .product-card,
.col-md-4:nth-child(4) .card {
    animation: cardReveal 0.5s 0.4s ease both;
}

.col-md-4:nth-child(5) .product-card,
.col-md-4:nth-child(5) .card {
    animation: cardReveal 0.5s 0.5s ease both;
}

.col-md-4:nth-child(6) .product-card,
.col-md-4:nth-child(6) .card {
    animation: cardReveal 0.5s 0.6s ease both;
}


/* ── 10. PRICE TAG STYLE ── */
.text-success,
h4.text-success {
    font-weight: 800 !important;
    font-size: 1.15rem !important;
    background: linear-gradient(135deg, #00e5b0, #00ff87) !important;
    -webkit-background-clip: text !important;
    -webkit-text-fill-color: transparent !important;
    background-clip: text !important;
}


/* ── 11. ADD TO CART BUTTON ── */
.add-to-cart-btn {
    width: 40px !important;
    height: 40px !important;
    border-radius: 50% !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    padding: 0 !important;
    background: linear-gradient(135deg, #5b7fff, #7c3aed) !important;
    border: none !important;
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1),
        box-shadow 0.3s ease !important;
}

.add-to-cart-btn:hover {
    transform: scale(1.2) rotate(8deg) !important;
    box-shadow: 0 8px 24px rgba(91, 127, 255, 0.6) !important;
}


/* ── 12. RESPONSIVE IMAGE FIX for mobile ── */
@media (max-width: 576px) {

    .card-img-top,
    .product-card .card-img-top {
        height: 180px !important;
    }

    h1 {
        font-size: 1.6rem !important;
    }

    h2 {
        font-size: 1.3rem !important;
    }

    .btn {
        font-size: 0.85rem !important;
    }
}

/* ═══════════════════════════════════════════════════════════
   🎨 DESIGN PATCH v2 — Hero + Navbar + WhatsApp Fix
   তোমার style.css এর একদম শেষে এই কোড paste করো
   ═══════════════════════════════════════════════════════════ */


/* ════════════════════════════════
   1. HERO TITLE — একসাথে সুন্দর
   ════════════════════════════════ */
.main-title {
    font-size: clamp(2.8rem, 6vw, 4.5rem) !important;
    font-weight: 900 !important;
    line-height: 1.1 !important;
    letter-spacing: -1px !important;
    color: #ffffff !important;
    margin-bottom: 1.2rem !important;
}

.main-title .shine-text {
    display: inline !important;
    /* একই লাইনে, wrap হলে চলবে */
    background: linear-gradient(135deg, #5b7fff 0%, #00e5b0 50%, #a78bfa 100%) !important;
    -webkit-background-clip: text !important;
    -webkit-text-fill-color: transparent !important;
    background-clip: text !important;
    background-size: 200% auto !important;
    animation: titleShimmer 4s linear infinite !important;
}

@keyframes titleShimmer {
    0% {
        background-position: 0% center;
    }

    100% {
        background-position: 200% center;
    }
}

/* Remove the <br> gap — make "SSC & HSC Practical Khata" flow naturally */
.main-title br {
    display: none !important;
}

.main-title {
    display: block !important;
}


/* ════════════════════════════════
   2. STYLISH NAVBAR
   ════════════════════════════════ */
.navbar {
    background: rgba(5, 7, 14, 0.92) !important;
    backdrop-filter: blur(24px) saturate(180%) !important;
    -webkit-backdrop-filter: blur(24px) saturate(180%) !important;
    border-bottom: 1px solid rgba(91, 127, 255, 0.12) !important;
    padding: 0 !important;
    transition: all 0.3s ease !important;
}

.navbar.scrolled {
    background: rgba(5, 7, 14, 0.98) !important;
    border-bottom-color: rgba(91, 127, 255, 0.25) !important;
    box-shadow: 0 1px 40px rgba(0, 0, 0, 0.5) !important;
}

.navbar .container {
    display: flex !important;
    align-items: center !important;
    height: 60px !important;
}

/* Brand */
.navbar-brand {
    font-family: 'Roboto', sans-serif !important;
    font-weight: 800 !important;
    font-size: 1rem !important;
    letter-spacing: -0.3px !important;
    display: flex !important;
    align-items: center !important;
    gap: 8px !important;
    padding: 0 !important;
    position: relative;
}

/* Brand icon box */
.navbar-brand i {
    width: 30px;
    height: 30px;
    background: linear-gradient(135deg, #5b7fff, #7c3aed);
    border-radius: 8px;
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    -webkit-text-fill-color: white !important;
    color: white !important;
    flex-shrink: 0;
}

/* Brand text gradient */
.navbar-brand span,
.navbar-brand {
    background: linear-gradient(135deg, #e8ecf4, #a0aec0) !important;
    -webkit-background-clip: text !important;
    -webkit-text-fill-color: transparent !important;
    background-clip: text !important;
}

/* Nav links */
.nav-link {
    color: #6b7a99 !important;
    font-weight: 500 !important;
    font-size: 0.85rem !important;
    padding: 0.4rem 0.9rem !important;
    border-radius: 8px !important;
    transition: color 0.2s ease, background 0.2s ease !important;
    letter-spacing: 0.2px;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: #e8ecf4 !important;
    background: rgba(255, 255, 255, 0.06) !important;
}

/* Active underline dot */
.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: #5b7fff;
}

/* Navbar divider between links and CTA */
.navbar-nav {
    gap: 2px !important;
    align-items: center !important;
}

/* Cart link — slightly highlighted */
.nav-link[href*="cart"] {
    background: rgba(91, 127, 255, 0.08) !important;
    border: 1px solid rgba(91, 127, 255, 0.15) !important;
    color: #8ba4ff !important;
    padding: 0.35rem 0.9rem !important;
}

.nav-link[href*="cart"]:hover {
    background: rgba(91, 127, 255, 0.18) !important;
    border-color: rgba(91, 127, 255, 0.35) !important;
    color: #c0d0ff !important;
}

/* Cart count badge */
.cart-nav-badge,
.nav-link span[style*="background"] {
    font-size: 0.6rem !important;
    font-weight: 700 !important;
    background: linear-gradient(135deg, #f472b6, #ec4899) !important;
    color: white !important;
    padding: 1px 5px !important;
    border-radius: 8px !important;
    margin-left: 3px;
    vertical-align: middle;
    line-height: 1.6 !important;
}


/* ════════════════════════════════
   3. WHATSAPP BUTTON — Clean, Small
   ════════════════════════════════ */

/* Hide the large one from home.html */
.wa-float {
    width: 46px !important;
    height: 46px !important;
    bottom: 20px !important;
    right: 20px !important;
    border-radius: 50% !important;
    background: linear-gradient(135deg, #25d366, #128c7e) !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    box-shadow: 0 4px 16px rgba(37, 211, 102, 0.35) !important;
    transition: transform 0.2s ease, box-shadow 0.2s ease !important;
    animation: none !important;
    /* remove the big pulse */
    position: fixed !important;
    z-index: 9999 !important;
    text-decoration: none !important;
}

.wa-float svg {
    width: 22px !important;
    height: 22px !important;
}

.wa-float:hover {
    transform: scale(1.1) !important;
    box-shadow: 0 6px 24px rgba(37, 211, 102, 0.5) !important;
}

/* Also fix the base.html whatsapp-float class */
.whatsapp-float {
    width: 46px !important;
    height: 46px !important;
    bottom: 20px !important;
    right: 20px !important;
    font-size: 1.2rem !important;
    box-shadow: 0 4px 16px rgba(37, 211, 102, 0.35) !important;
    animation: none !important;
}

.wa-tooltip {
    display: none !important;
}

/* hide tooltip — cleaner */

/* Subtle ping animation instead of big pulse */
@keyframes waPing {

    0%,
    100% {
        box-shadow: 0 4px 16px rgba(37, 211, 102, 0.35);
    }

    50% {
        box-shadow: 0 4px 24px rgba(37, 211, 102, 0.55);
    }
}

.wa-float,
.whatsapp-float {
    animation: waPing 3s ease-in-out infinite !important;
}


/* ════════════════════════════════
   4. FEATURE LIST in Hero
   ════════════════════════════════ */
.feature-list {
    list-style: none !important;
    padding: 0 !important;
    margin: 1rem 0 1.5rem !important;
    display: flex !important;
    flex-direction: column !important;
    gap: 8px !important;
}

.feature-list li {
    font-size: 0.9rem !important;
    color: #9aa5c4 !important;
    display: flex !important;
    align-items: center !important;
    gap: 10px !important;
    line-height: 1.5 !important;
}

.feature-list .icon {
    font-size: 1rem;
    flex-shrink: 0;
}


/* ════════════════════════════════
   5. EYEBROW LABEL
   ════════════════════════════════ */
.eyebrow {
    font-size: 0.78rem !important;
    font-weight: 600 !important;
    letter-spacing: 1.5px !important;
    text-transform: uppercase !important;
    color: #5b7fff !important;
    display: flex !important;
    align-items: center !important;
    gap: 8px !important;
    margin-bottom: 1rem !important;
}

.dot {
    width: 6px !important;
    height: 6px !important;
    border-radius: 50% !important;
    background: #5b7fff !important;
    display: inline-block !important;
    animation: dotPulse 2s ease-in-out infinite !important;
}

@keyframes dotPulse {

    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.5;
        transform: scale(0.7);
    }
}


/* ════════════════════════════════
   6. MOBILE
   ════════════════════════════════ */
@media (max-width: 768px) {
    .main-title {
        font-size: 2.2rem !important;
    }

    .navbar .container {
        height: 54px !important;
    }

    .navbar-brand {
        font-size: 0.9rem !important;
    }
}

/* ═══════════════════════════════════════════════
   PATCH v3 — Hero Title Final Fix
   style.css এর শেষে paste করো (আগের patches এর পরে)
   ═══════════════════════════════════════════════ */

/* "SSC & HSC" — plain white, big */
.main-title {
    font-size: clamp(2.4rem, 5vw, 3.8rem) !important;
    font-weight: 900 !important;
    line-height: 1.15 !important;
    letter-spacing: -1px !important;
    color: #ffffff !important;
    -webkit-text-fill-color: #ffffff !important;
    margin-bottom: 0.3rem !important;
    display: block !important;
}

/* Remove br so everything stays on flow */
.main-title br {
    display: none !important;
}

/* "Practical Khata" — THE hero gradient highlight */
.main-title .shine-text {
    display: block !important;
    font-size: clamp(2.8rem, 6.5vw, 5rem) !important;
    font-weight: 900 !important;
    line-height: 1.05 !important;
    letter-spacing: -2px !important;
    background: linear-gradient(135deg, #5b7fff 0%, #a78bfa 40%, #00e5b0 80%) !important;
    -webkit-background-clip: text !important;
    -webkit-text-fill-color: transparent !important;
    background-clip: text !important;
    background-size: 250% auto !important;
    animation: heroShimmer 5s linear infinite !important;
    margin-top: 2px !important;
}

@keyframes heroShimmer {
    0% {
        background-position: 0% center;
    }

    100% {
        background-position: 250% center;
    }
}

@media (max-width: 600px) {
    .main-title {
        font-size: 2rem !important;
    }

    .main-title .shine-text {
        font-size: 2.6rem !important;
        letter-spacing: -1px !important;
    }
}

/* ═══════════════════════════════════════════
   AUTH CSS PATCH — style.css এর শেষে paste করো
   ═══════════════════════════════════════════ */

/* Auth Card */
.auth-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 18px;
    padding: 32px;
    text-align: center;
}

.auth-logo {
    font-size: 2.5rem;
    margin-bottom: 12px;
}

.auth-title {
    font-size: 1.3rem !important;
    font-weight: 800 !important;
    color: #e8ecf4;
    margin-bottom: 4px;
}

.auth-sub {
    font-size: 0.82rem !important;
    color: #6b7a99;
}

.auth-label {
    display: block;
    text-align: left;
    font-size: 0.8rem !important;
    color: #6b7a99;
    margin-bottom: 6px;
    font-weight: 500;
}

.auth-input {
    width: 100%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    color: #e8ecf4;
    font-size: 0.9rem;
    padding: 10px 14px;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
    display: block;
}

.auth-input:focus {
    border-color: #5b7fff;
    box-shadow: 0 0 0 3px rgba(91, 127, 255, 0.15);
}

.auth-btn {
    width: 100%;
    margin-top: 20px;
    padding: 12px;
    background: linear-gradient(135deg, #5b7fff, #7c3aed);
    border: none;
    border-radius: 12px;
    color: white;
    font-size: 0.95rem !important;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.auth-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(91, 127, 255, 0.4);
}

.auth-alert {
    background: rgba(244, 114, 182, 0.1);
    border: 1px solid rgba(244, 114, 182, 0.3);
    color: #f472b6;
    border-radius: 10px;
    padding: 10px 14px;
    font-size: 0.82rem !important;
    margin-top: 12px;
    text-align: left;
}

/* Navbar login/register links */
.nav-link[href*="login"],
.nav-link[href*="register"],
.nav-link[href*="dashboard"] {
    background: rgba(255, 255, 255, 0.04) !important;
    border: 1px solid rgba(255, 255, 255, 0.08) !important;
}