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

/* ── Local Bangla Font ── */
@font-face {
    font-family: 'Tatsam Bengali';
    src: url('Font/TatsamBengali-Light.otf') format('opentype');
    font-weight: 300;
    font-display: swap;
}
@font-face {
    font-family: 'Tatsam Bengali';
    src: url('Font/TatsamBengali-Demi.otf') format('opentype');
    font-weight: 400;
    font-display: swap;
}
@font-face {
    font-family: 'Tatsam Bengali';
    src: url('Font/TatsamBengali-Medium.otf') format('opentype');
    font-weight: 500;
    font-display: swap;
}

:root {
    --bg-primary: #080c14;
    --bg-secondary: #0d1320;
    --cyan: #00d4ff;
    --purple: #8b5cf6;
    --green: #00ff88;
    --yellow: #fbbf24;
    --orange: #f97316;
    --red: #ef4444;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --glass-bg: rgba(13, 19, 32, 0.6);
    --glass-border: rgba(255, 255, 255, 0.08);
    --font-bn: 'Tatsam Bengali', sans-serif;
    --font-en: 'Inter', sans-serif;
    --font-script: 'Apple Garamond', 'Poppins', serif;
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
    font-family: 'Tatsam Bengali', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    overflow-x: hidden;
    min-height: 100vh;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

.num, .price-amount, .model-chip, .tag-chip span {
    font-family: 'Inter', 'Tatsam Bengali', sans-serif;
}

/* ── Animated Background ── */
.bg-effects { position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }

.bg-grid {
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    animation: gridMove 20s linear infinite;
}
@keyframes gridMove { 0% { transform: translate(0,0); } 100% { transform: translate(60px,60px); } }

.orb { position: absolute; border-radius: 50%; filter: blur(100px); opacity: 0.3; animation: orbFloat 15s ease-in-out infinite; }
.orb-1 { width: 500px; height: 500px; background: var(--purple); top: -10%; right: -5%; }
.orb-2 { width: 400px; height: 400px; background: var(--cyan); bottom: -10%; left: -5%; animation-delay: -7s; }
.orb-3 { width: 300px; height: 300px; background: var(--purple); top: 50%; left: 40%; opacity: 0.15; animation-delay: -3s; }
@keyframes orbFloat {
    0%, 100% { transform: translate(0,0) scale(1); }
    25% { transform: translate(30px,-40px) scale(1.05); }
    50% { transform: translate(-20px,20px) scale(0.95); }
    75% { transform: translate(40px,30px) scale(1.02); }
}

/* ── Screens ── */
.screen { position: relative; z-index: 1; min-height: 100vh; display: none; opacity: 0; transition: opacity 0.3s ease; }
.screen.active { display: flex; flex-direction: column; align-items: center; opacity: 1; }
.screen.fade-out { opacity: 0; }
.screen.slide-in { animation: slideIn 0.35s ease forwards; }
.screen.slide-out { animation: slideOut 0.3s ease forwards; }
@keyframes slideIn { from { opacity:0; transform:translateX(40px); } to { opacity:1; transform:translateX(0); } }
@keyframes slideOut { from { opacity:1; transform:translateX(0); } to { opacity:0; transform:translateX(-40px); } }

/* ── Screen 1: Landing ── */
.landing { padding: 50px 24px 60px; gap: 36px; justify-content: flex-start; }

.top-badge {
    display: inline-flex; align-items: center; gap: 8px;
    background: rgba(0, 212, 255, 0.08); border: 1px solid rgba(0, 212, 255, 0.2);
    padding: 10px 24px; border-radius: 50px;
    font-size: 1rem; color: var(--cyan); letter-spacing: 0.5px;
    animation: badgeFadeIn 0.8s ease forwards;
}
@keyframes badgeFadeIn { from { opacity: 0; transform: translateY(-10px); } to { opacity: 1; transform: translateY(0); } }

.landing-heading {
    font-size: clamp(2rem, 5vw, 3.2rem); font-weight: 700; text-align: center;
    background: linear-gradient(135deg, #fff 0%, var(--cyan) 50%, var(--purple) 100%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
    letter-spacing: -0.3px;
}

.landing-sub { color: var(--text-secondary); font-size: 1.2rem; text-align: center; max-width: 550px; line-height: 1.8; }

/* ── Copilot Pro Highlight Banner (Landing) ── */
.copilot-banner {
    width: 100%; max-width: 980px;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.06), rgba(139, 92, 246, 0.06));
    border: 1px solid rgba(139, 92, 246, 0.25);
    border-radius: 20px; padding: 28px 32px;
    display: flex; align-items: center; gap: 20px;
    position: relative; overflow: hidden;
}
.copilot-banner::before {
    content: ''; position: absolute; inset: -1px; border-radius: 20px;
    background: linear-gradient(135deg, var(--cyan), var(--purple), var(--green));
    z-index: -1; padding: 2px;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude; -webkit-mask-composite: xor;
    animation: borderGlow 3s ease-in-out infinite;
}
@keyframes borderGlow {
    0%, 100% { opacity: 0.6; } 50% { opacity: 1; }
}
.copilot-banner-icon {
    font-size: 2.5rem;
    background: linear-gradient(135deg, var(--cyan), var(--purple));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
    flex-shrink: 0;
}
.copilot-banner-text { display: flex; flex-direction: column; gap: 4px; }
.copilot-banner-title { font-size: 1.3rem; font-weight: 700; color: #fff; }
.copilot-banner-sub { font-size: 1.05rem; color: var(--text-secondary); }
.copilot-banner-badges { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 8px; }
.copilot-stat {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 6px 16px; border-radius: 10px;
    font-size: 0.95rem; font-weight: 600;
}
.copilot-stat.credit {
    background: rgba(0, 255, 136, 0.08); color: var(--green);
    border: 1px solid rgba(0, 255, 136, 0.2);
}
.copilot-stat.reset {
    background: rgba(0, 212, 255, 0.08); color: var(--cyan);
    border: 1px solid rgba(0, 212, 255, 0.2);
}
.copilot-stat.duration {
    background: rgba(139, 92, 246, 0.08); color: var(--purple);
    border: 1px solid rgba(139, 92, 246, 0.2);
}

/* ── Cards Container ── */
.cards-container {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 28px; max-width: 1040px; width: 100%; padding: 0 10px;
}

/* ── Glass Card ── */
.glass-card {
    background: var(--glass-bg); border: 1px solid var(--glass-border);
    border-radius: 20px; padding: 32px 28px;
    backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    position: relative; overflow: hidden;
    transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
    display: flex; flex-direction: column; gap: 20px;
}
.glass-card::before {
    content: ''; position: absolute; inset: 0; border-radius: 20px;
    background: linear-gradient(180deg, rgba(255,255,255,0.03) 0%, transparent 40%);
    pointer-events: none;
}
.glass-card:hover { transform: translateY(-6px); box-shadow: 0 20px 60px rgba(0,0,0,0.4); }
.glass-card.card-cyan:hover { border-color: rgba(0,212,255,0.25); box-shadow: 0 20px 60px rgba(0,212,255,0.08); }
.glass-card.card-purple:hover { border-color: rgba(139,92,246,0.25); box-shadow: 0 20px 60px rgba(139,92,246,0.08); }

.corner-badge {
    position: absolute; top: 16px; right: 16px;
    background: linear-gradient(135deg, var(--orange), var(--red));
    color: #fff; font-size: 0.85rem; font-weight: 700;
    padding: 6px 16px; border-radius: 20px;
    display: flex; align-items: center; gap: 4px;
    box-shadow: 0 4px 15px rgba(249,115,22,0.4);
    animation: badgePulse 2s ease-in-out infinite;
}
@keyframes badgePulse { 0%,100% { box-shadow: 0 4px 15px rgba(249,115,22,0.4); } 50% { box-shadow: 0 4px 25px rgba(249,115,22,0.6); } }

.card-title { font-size: 1.25rem; font-weight: 700; color: #fff; }

.tag-chip {
    display: inline-flex; align-items: center; gap: 4px;
    padding: 6px 18px; border-radius: 20px;
    font-size: 0.9rem; font-weight: 600; width: fit-content;
}
.tag-cyan { background: rgba(0,212,255,0.12); color: var(--cyan); border: 1px solid rgba(0,212,255,0.25); }
.tag-purple { background: rgba(139,92,246,0.12); color: var(--purple); border: 1px solid rgba(139,92,246,0.25); }

.price-section { display: flex; align-items: baseline; gap: 4px; }
.price-amount {
    font-size: 2.6rem; font-weight: 700;
    background: linear-gradient(135deg, #fff, var(--cyan));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
    filter: drop-shadow(0 0 20px rgba(0,212,255,0.3));
}
.card-purple .price-amount {
    background: linear-gradient(135deg, #fff, var(--purple));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
    filter: drop-shadow(0 0 20px rgba(139,92,246,0.3));
}

/* ── Hero Highlight Box ── */
.hero-box {
    padding: 18px 22px; border-radius: 14px; border: 1px solid;
    display: flex; align-items: center; gap: 10px;
    font-weight: 700; font-size: 1.1rem;
}
.hero-box-cyan {
    border-color: rgba(0,212,255,0.3); background: rgba(0,212,255,0.06); color: var(--cyan);
    box-shadow: 0 0 30px rgba(0,212,255,0.1), inset 0 0 30px rgba(0,212,255,0.04);
}
.hero-box-purple {
    border-color: rgba(139,92,246,0.35); background: rgba(139,92,246,0.08); color: var(--purple);
    box-shadow: 0 0 35px rgba(139,92,246,0.12), inset 0 0 35px rgba(139,92,246,0.05);
}
.hero-box i { font-size: 1.3rem; }

/* ── Copilot Pro Credit Stats inside Card ── */
.copilot-card-stats { display: flex; flex-wrap: wrap; gap: 8px; }
.copilot-card-stat {
    display: inline-flex; align-items: center; gap: 5px;
    padding: 6px 14px; border-radius: 8px;
    font-size: 0.9rem; font-weight: 600;
}
.copilot-card-stat.credit { background: rgba(0,255,136,0.08); color: var(--green); border: 1px solid rgba(0,255,136,0.15); }
.copilot-card-stat.reset { background: rgba(0,212,255,0.08); color: var(--cyan); border: 1px solid rgba(0,212,255,0.15); }
.copilot-card-stat.duration { background: rgba(139,92,246,0.08); color: var(--purple); border: 1px solid rgba(139,92,246,0.15); }

/* ── AI Models Section ── */
.ai-models-section {
    border: 1px solid rgba(139,92,246,0.2); border-radius: 14px;
    padding: 20px; background: linear-gradient(135deg, rgba(139,92,246,0.04), rgba(0,212,255,0.02));
    position: relative;
}
.ai-models-section::before {
    content: ''; position: absolute; inset: -1px; border-radius: 14px;
    background: linear-gradient(135deg, rgba(139,92,246,0.3), rgba(0,212,255,0.2), rgba(139,92,246,0.1));
    z-index: -1; padding: 1px;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude; -webkit-mask-composite: xor;
}
.ai-models-title { font-size: 1rem; font-weight: 600; margin-bottom: 12px; color: var(--text-secondary); }
.ai-models-grid { display: flex; flex-wrap: wrap; gap: 8px; }

.model-chip {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 6px 14px; border-radius: 10px;
    font-size: 0.82rem; font-weight: 600; border: 1px solid;
    animation: chipPulse 3s ease-in-out infinite;
}
.model-chip .chip-badge { font-size: 0.68rem; padding: 2px 7px; border-radius: 8px; font-weight: 700; margin-left: 2px; }
@keyframes chipPulse { 0%,100% { filter: brightness(1); } 50% { filter: brightness(1.15); } }

.chip-green { background: rgba(0,255,136,0.08); border-color: rgba(0,255,136,0.3); color: var(--green); }
.chip-cyan { background: rgba(0,212,255,0.08); border-color: rgba(0,212,255,0.3); color: var(--cyan); }
.chip-purple { background: rgba(139,92,246,0.1); border-color: rgba(139,92,246,0.35); color: var(--purple); }
.chip-yellow { background: rgba(251,191,36,0.08); border-color: rgba(251,191,36,0.3); color: var(--yellow); }
.chip-orange { background: rgba(249,115,22,0.08); border-color: rgba(249,115,22,0.3); color: var(--orange); }
.chip-red { background: rgba(239,68,68,0.08); border-color: rgba(239,68,68,0.3); color: #f87171; }
.chip-badge.badge-cyan { background: rgba(0,212,255,0.2); color: var(--cyan); }
.chip-badge.badge-purple { background: rgba(139,92,246,0.25); color: var(--purple); }
.chip-badge.badge-yellow { background: rgba(251,191,36,0.2); color: var(--yellow); }
.chip-badge.badge-green { background: rgba(0,255,136,0.2); color: var(--green); }
.chip-badge.badge-red { background: rgba(239,68,68,0.2); color: #f87171; }

/* ── Feature List ── */
.feature-list { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.feature-list li {
    display: flex; align-items: flex-start; gap: 10px;
    font-size: 1.05rem; color: var(--text-secondary); line-height: 1.6;
}
.feature-list li i { color: var(--green); font-size: 0.85rem; margin-top: 6px; flex-shrink: 0; }

/* ── Warning Chip ── */
.warning-chip {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 10px 18px; border-radius: 10px;
    font-size: 0.95rem; font-weight: 500;
    background: rgba(239,68,68,0.08); border: 1px solid rgba(239,68,68,0.2);
    color: #f87171; width: fit-content;
}
.warning-chip.orange { background: rgba(249,115,22,0.08); border-color: rgba(249,115,22,0.2); color: var(--orange); }

.target-label { font-size: 1rem; color: var(--text-secondary); font-style: italic; }
.target-label i { margin-right: 4px; }

/* ── CTA Button ── */
.cta-btn {
    width: 100%; padding: 16px 28px; border: none; border-radius: 14px;
    font-family: 'Tatsam Bengali', sans-serif;
    font-size: 1.15rem; font-weight: 600; cursor: pointer;
    position: relative; overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.3s ease;
    display: flex; align-items: center; justify-content: center; gap: 8px;
    margin-top: auto; min-height: 54px;
}
.cta-btn-cyan { background: linear-gradient(135deg, var(--cyan), #0099cc); color: #000; box-shadow: 0 4px 20px rgba(0,212,255,0.3); }
.cta-btn-purple { background: linear-gradient(135deg, var(--purple), #6d28d9); color: #fff; box-shadow: 0 4px 20px rgba(139,92,246,0.3); }
.cta-btn:hover { transform: translateY(-2px); }
.cta-btn-cyan:hover { box-shadow: 0 8px 30px rgba(0,212,255,0.45); }
.cta-btn-purple:hover { box-shadow: 0 8px 30px rgba(139,92,246,0.45); }
.cta-btn:active { transform: scale(0.97); }
.cta-btn .ripple { position: absolute; border-radius: 50%; background: rgba(255,255,255,0.35); transform: scale(0); animation: rippleAnim 0.6s ease-out; pointer-events: none; }
@keyframes rippleAnim { to { transform: scale(4); opacity: 0; } }

/* ── Bottom Note ── */
.bottom-note { text-align: center; max-width: 650px; display: flex; flex-direction: column; gap: 8px; padding: 24px; }
.bottom-note p { font-size: 1.05rem; color: var(--text-secondary); }
.bottom-note .whatsapp-line { color: var(--green); font-weight: 600; font-size: 1.15rem; letter-spacing: 0.5px; }
.bottom-note .whatsapp-line i { margin-right: 6px; }

/* ══════════════════════════════════════ */
/* ── FAQ Section ──                     */
/* ══════════════════════════════════════ */
.faq-section {
    width: 100%; max-width: 980px; padding: 0 10px;
    display: flex; flex-direction: column; gap: 16px;
}
.faq-heading {
    font-size: 1.6rem; font-weight: 700; text-align: center;
    color: #fff; margin-bottom: 8px; letter-spacing: -0.2px;
}
.faq-heading i { color: var(--cyan); margin-right: 8px; }
.faq-item {
    background: var(--glass-bg); border: 1px solid var(--glass-border);
    border-radius: 14px; overflow: hidden;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.faq-item.open { border-color: rgba(0,212,255,0.2); box-shadow: 0 4px 20px rgba(0,212,255,0.05); }
.faq-question {
    width: 100%; padding: 18px 24px; border: none;
    background: transparent; color: var(--text-primary);
    font-family: 'Tatsam Bengali', sans-serif;
    font-size: 1.1rem; font-weight: 600;
    display: flex; align-items: center; justify-content: space-between;
    cursor: pointer; text-align: left; gap: 12px;
}
.faq-question:hover { color: var(--cyan); }
.faq-question i {
    font-size: 0.85rem; color: var(--cyan);
    transition: transform 0.3s ease; flex-shrink: 0;
}
.faq-item.open .faq-question i { transform: rotate(180deg); }
.faq-answer {
    max-height: 0; overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
    padding: 0 24px;
}
.faq-item.open .faq-answer {
    max-height: 800px; padding: 0 24px 20px;
}
.faq-answer p, .faq-answer div {
    font-size: 1.05rem; color: var(--text-secondary); line-height: 1.8;
}
.faq-answer .faq-step {
    display: flex; align-items: flex-start; gap: 10px;
    padding: 8px 0;
}
.faq-answer .faq-step-num {
    display: inline-flex; align-items: center; justify-content: center;
    width: 28px; height: 28px; border-radius: 8px;
    background: rgba(0,212,255,0.1); color: var(--cyan);
    font-family: 'Inter', sans-serif;
    font-size: 0.85rem; font-weight: 700;
    flex-shrink: 0; margin-top: 2px;
}
.faq-answer .faq-highlight {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 6px 14px; border-radius: 8px; margin: 6px 0;
    font-weight: 600; font-size: 0.95rem;
}
.faq-answer .faq-highlight.green {
    background: rgba(0,255,136,0.08); color: var(--green);
    border: 1px solid rgba(0,255,136,0.15);
}
.faq-answer .faq-highlight.orange {
    background: rgba(249,115,22,0.08); color: var(--orange);
    border: 1px solid rgba(249,115,22,0.15);
}
.faq-answer .faq-highlight.cyan {
    background: rgba(0,212,255,0.08); color: var(--cyan);
    border: 1px solid rgba(0,212,255,0.15);
}
.faq-answer .faq-highlight.purple {
    background: rgba(139,92,246,0.08); color: var(--purple);
    border: 1px solid rgba(139,92,246,0.15);
}
.faq-answer .faq-warning {
    display: flex; align-items: flex-start; gap: 8px;
    padding: 12px 16px; border-radius: 10px; margin: 10px 0;
    background: rgba(249,115,22,0.06); border: 1px solid rgba(249,115,22,0.15);
    color: var(--orange); font-size: 0.95rem; line-height: 1.6;
}
.faq-answer .faq-security {
    display: flex; align-items: flex-start; gap: 8px;
    padding: 8px 0; color: var(--green); font-size: 0.95rem;
}
.faq-answer .faq-payment-method {
    display: flex; align-items: center; gap: 10px;
    padding: 12px 16px; border-radius: 10px; margin: 6px 0;
    background: var(--glass-bg); border: 1px solid var(--glass-border);
    font-size: 1rem;
}
.faq-answer .faq-payment-method i { font-size: 1.2rem; }
.faq-answer .faq-payment-method .method-name { color: var(--text-primary); font-weight: 600; }
.faq-answer .faq-payment-method .method-number { color: var(--cyan); font-family: 'Inter', sans-serif; font-weight: 600; }

/* ══════════════════════════════════════ */
/* ── SCREEN 2: Detail Page ──           */
/* ══════════════════════════════════════ */
.detail-page {
    padding: 0; max-width: 100%; width: 100%;
    margin: 0 auto; gap: 0; justify-content: flex-start;
}

/* ── Back Button (Sticky) ── */
.back-btn {
    position: fixed; top: 20px; left: 20px; z-index: 100;
    display: inline-flex; align-items: center; gap: 8px;
    background: rgba(13,19,32,0.85); border: 1px solid rgba(255,255,255,0.1);
    color: var(--text-secondary); padding: 10px 20px; border-radius: 12px;
    font-family: 'Tatsam Bengali', sans-serif; font-size: 0.95rem;
    cursor: pointer; transition: all 0.25s ease; min-height: 44px;
    backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
}
.back-btn:hover { background: rgba(0,212,255,0.1); border-color: rgba(0,212,255,0.3); color: var(--cyan); }

/* ── Detail Notices ── */
.detail-notices {
    width: 100%; max-width: 1060px; margin: 0 auto;
    padding: 0 24px; display: flex; flex-direction: column; gap: 10px;
    margin-top: -20px; margin-bottom: 10px;
}
.detail-notice {
    display: flex; align-items: center; gap: 12px;
    padding: 14px 22px; border-radius: 14px;
    font-size: 0.95rem; font-weight: 600;
}
.detail-notice.info {
    background: rgba(0,212,255,0.06); border: 1px solid rgba(0,212,255,0.18);
    color: var(--cyan);
}
.detail-notice.info i { color: var(--cyan); font-size: 1.1rem; flex-shrink: 0; }
.detail-notice.warning {
    background: rgba(251,191,36,0.08); border: 1px solid rgba(251,191,36,0.22);
    color: var(--yellow);
}
.detail-notice.warning i { color: var(--yellow); font-size: 1.1rem; flex-shrink: 0; }

/* ── Detail Hero Section ── */
.detail-hero {
    width: 100%; padding: 100px 24px 60px; text-align: center;
    display: flex; flex-direction: column; align-items: center; gap: 24px;
    position: relative; overflow: hidden;
    background: linear-gradient(180deg, rgba(0,212,255,0.04) 0%, transparent 100%);
}
.detail-hero.purple-theme {
    background: linear-gradient(180deg, rgba(139,92,246,0.05) 0%, transparent 100%);
}
.detail-hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 8px 20px; border-radius: 50px;
    font-size: 0.9rem; font-weight: 600;
}
.detail-hero-badge.cyan {
    background: rgba(0,212,255,0.1); border: 1px solid rgba(0,212,255,0.25); color: var(--cyan);
}
.detail-hero-badge.purple {
    background: rgba(139,92,246,0.1); border: 1px solid rgba(139,92,246,0.25); color: var(--purple);
}
.detail-hero h1 {
    font-size: clamp(2rem, 5vw, 3rem); font-weight: 700;
    background: linear-gradient(135deg, #fff 0%, var(--cyan) 100%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
    max-width: 700px;
}
.detail-hero.purple-theme h1 {
    background: linear-gradient(135deg, #fff 0%, var(--purple) 100%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.detail-hero-sub { font-size: 1.15rem; color: var(--text-secondary); max-width: 600px; }
.detail-hero-price {
    display: flex; align-items: center; gap: 16px;
}
.detail-hero-price .original-price {
    font-family: 'Inter', sans-serif;
    font-size: 1.3rem; color: var(--text-secondary);
    text-decoration: line-through; opacity: 0.6;
}
.detail-hero-price .current-price {
    font-family: 'Inter', sans-serif;
    font-size: 2.8rem; font-weight: 700;
}
.detail-hero-price .current-price.cyan { color: var(--cyan); filter: drop-shadow(0 0 20px rgba(0,212,255,0.4)); }
.detail-hero-price .current-price.purple { color: var(--purple); filter: drop-shadow(0 0 20px rgba(139,92,246,0.4)); }

/* ── Hero Stats Row ── */
.detail-hero-stats {
    display: flex; gap: 20px; flex-wrap: wrap; justify-content: center; margin-top: 8px;
}
.detail-stat-box {
    display: flex; flex-direction: column; align-items: center; gap: 6px;
    padding: 20px 28px; border-radius: 16px;
    background: var(--glass-bg); border: 1px solid var(--glass-border);
    backdrop-filter: blur(15px); min-width: 140px;
    transition: border-color 0.3s ease, transform 0.3s ease;
}
.detail-stat-box:hover { transform: translateY(-4px); }
.detail-stat-box.cyan:hover { border-color: rgba(0,212,255,0.3); }
.detail-stat-box.purple:hover { border-color: rgba(139,92,246,0.3); }
.detail-stat-box.green:hover { border-color: rgba(0,255,136,0.3); }
.detail-stat-box .stat-icon {
    font-size: 1.5rem; width: 44px; height: 44px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 12px;
}
.detail-stat-box.cyan .stat-icon { background: rgba(0,212,255,0.1); color: var(--cyan); }
.detail-stat-box.purple .stat-icon { background: rgba(139,92,246,0.1); color: var(--purple); }
.detail-stat-box.green .stat-icon { background: rgba(0,255,136,0.1); color: var(--green); }
.detail-stat-box .stat-value {
    font-family: 'Inter', sans-serif;
    font-size: 1.6rem; font-weight: 700; color: #fff;
}
.detail-stat-box .stat-label { font-size: 0.85rem; color: var(--text-secondary); }

/* ── Copilot Pro Section (Detail) ── */
.detail-copilot-section {
    width: 100%; max-width: 1060px; margin: 0 auto;
    padding: 60px 24px;
    display: flex; flex-direction: column; align-items: center; gap: 32px;
}
.detail-section-heading {
    text-align: center; display: flex; flex-direction: column; align-items: center; gap: 10px;
}
.detail-section-heading .section-label {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 6px 16px; border-radius: 8px;
    font-family: var(--font-script);
    font-size: 0.85rem; font-weight: 600;
    background: rgba(0,212,255,0.08); color: var(--cyan); border: 1px solid rgba(0,212,255,0.15);
}
.detail-section-heading h2 {
    font-size: clamp(1.5rem, 3.5vw, 2rem); font-weight: 700; color: #fff;
}
.detail-section-heading p { font-size: 1.05rem; color: var(--text-secondary); max-width: 600px; }

/* ── Copilot Hero Card ── */
.copilot-detail-hero {
    width: 100%; border-radius: 20px; padding: 36px 32px;
    display: flex; flex-direction: column; align-items: center; gap: 18px;
    text-align: center; position: relative; overflow: hidden;
}
.copilot-detail-hero::before {
    content: ''; position: absolute; inset: -1px; border-radius: 20px;
    background: linear-gradient(135deg, var(--cyan), var(--purple), var(--green));
    z-index: -1; padding: 2px;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude; -webkit-mask-composite: xor;
    animation: borderGlow 3s ease-in-out infinite;
}
.copilot-detail-hero.cyan-bg { background: rgba(0,212,255,0.04); }
.copilot-detail-hero.purple-bg { background: rgba(139,92,246,0.05); }
.copilot-detail-icon {
    font-size: 3rem;
    background: linear-gradient(135deg, var(--cyan), var(--purple));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.copilot-detail-title { font-size: 1.5rem; font-weight: 700; color: #fff; }
.copilot-detail-sub { font-size: 1.05rem; color: var(--text-secondary); }
.copilot-detail-stats { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.copilot-detail-stat {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 10px 20px; border-radius: 12px;
    font-size: 1rem; font-weight: 600;
}
.copilot-detail-stat.credit { background: rgba(0,255,136,0.1); color: var(--green); border: 1px solid rgba(0,255,136,0.2); }
.copilot-detail-stat.reset { background: rgba(0,212,255,0.1); color: var(--cyan); border: 1px solid rgba(0,212,255,0.2); }
.copilot-detail-stat.duration { background: rgba(139,92,246,0.1); color: var(--purple); border: 1px solid rgba(139,92,246,0.2); }

/* ── Copilot Feature Cards ── */
.copilot-features-grid {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 16px; width: 100%;
}
.copilot-feature-card {
    background: var(--glass-bg); border: 1px solid var(--glass-border);
    border-radius: 16px; padding: 28px 24px;
    display: flex; flex-direction: column; gap: 14px;
    transition: border-color 0.3s ease, transform 0.3s ease;
    position: relative; overflow: hidden;
}
.copilot-feature-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: linear-gradient(90deg, var(--cyan), var(--purple));
    opacity: 0; transition: opacity 0.3s ease;
}
.copilot-feature-card:hover { border-color: rgba(0,212,255,0.2); transform: translateY(-4px); }
.copilot-feature-card:hover::before { opacity: 1; }
.copilot-feature-card .cf-icon {
    width: 48px; height: 48px; border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.3rem;
    background: linear-gradient(135deg, rgba(0,212,255,0.1), rgba(139,92,246,0.1));
    color: var(--cyan);
}
.copilot-feature-card h4 { font-size: 1.05rem; font-weight: 700; color: #fff; }
.copilot-feature-card p { font-size: 0.92rem; color: var(--text-secondary); line-height: 1.6; }

/* ── Highlight Benefits Section ── */
.highlight-section {
    width: 100%; max-width: 1060px; margin: 0 auto;
    padding: 0 24px 60px;
    display: flex; flex-direction: column; align-items: center; gap: 28px;
}
.highlight-grid {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 16px; width: 100%;
}
.highlight-card {
    background: var(--glass-bg); border: 1px solid var(--glass-border);
    border-radius: 18px; padding: 0; overflow: hidden;
    transition: border-color 0.3s ease, transform 0.3s ease;
    display: flex; flex-direction: column;
}
.highlight-card:hover { border-color: rgba(0,212,255,0.2); transform: translateY(-4px); }
.highlight-card-header {
    padding: 24px 22px 18px; display: flex; align-items: center; gap: 14px;
    border-bottom: 1px solid var(--glass-border);
}
.highlight-card-header img { width: 40px; height: 40px; border-radius: 10px; flex-shrink: 0; }
.highlight-card-header .hc-info { display: flex; flex-direction: column; gap: 2px; }
.highlight-card-header .hc-name { font-size: 1.05rem; font-weight: 700; color: #fff; }
.highlight-card-header .hc-desc { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.4; }
.highlight-card-body { padding: 18px 22px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.highlight-card-body .hc-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.hc-tag {
    display: inline-flex; align-items: center; gap: 4px;
    padding: 4px 12px; border-radius: 8px;
    font-size: 0.78rem; font-weight: 600;
}
.hc-tag.cyan { background: rgba(0,212,255,0.08); color: var(--cyan); border: 1px solid rgba(0,212,255,0.15); }
.hc-tag.purple { background: rgba(139,92,246,0.08); color: var(--purple); border: 1px solid rgba(139,92,246,0.15); }
.hc-tag.green { background: rgba(0,255,136,0.08); color: var(--green); border: 1px solid rgba(0,255,136,0.15); }
.highlight-card-footer {
    padding: 14px 22px; border-top: 1px solid var(--glass-border);
    display: flex; align-items: center; justify-content: space-between;
}
.hc-validity {
    display: inline-flex; align-items: center; gap: 5px;
    font-size: 0.85rem; font-weight: 600; color: var(--green);
}
.hc-price-tag {
    font-family: 'Inter', sans-serif;
    font-size: 0.9rem; font-weight: 700; padding: 4px 14px;
    border-radius: 8px; background: rgba(0,212,255,0.1);
    color: var(--cyan); border: 1px solid rgba(0,212,255,0.2);
}
.highlight-card .hc-pick-badge {
    position: absolute; top: 12px; right: 12px;
    background: linear-gradient(135deg, var(--orange), var(--red));
    color: #fff; font-size: 0.72rem; font-weight: 700;
    padding: 4px 12px; border-radius: 20px;
}

/* ── All Tools Section ── */
.all-tools-section {
    width: 100%; padding: 60px 24px;
    background: linear-gradient(180deg, rgba(0,212,255,0.02) 0%, transparent 50%, rgba(139,92,246,0.02) 100%);
}
.all-tools-inner {
    max-width: 1060px; margin: 0 auto;
    display: flex; flex-direction: column; align-items: center; gap: 28px;
}

/* ── Filter Tabs ── */
.filter-tabs {
    display: flex; flex-wrap: wrap; gap: 8px; justify-content: center;
    padding: 6px; border-radius: 14px;
    background: rgba(13,19,32,0.5); border: 1px solid var(--glass-border);
}
.filter-tab {
    padding: 8px 18px; border: 1px solid transparent; border-radius: 10px;
    background: transparent; color: var(--text-secondary);
    font-family: 'Tatsam Bengali', sans-serif; font-size: 0.9rem; font-weight: 600;
    cursor: pointer; transition: all 0.25s ease; white-space: nowrap;
}
.filter-tab:hover { color: var(--text-primary); background: rgba(255,255,255,0.04); }
.filter-tab.active {
    background: rgba(0,212,255,0.1); color: var(--cyan);
    border-color: rgba(0,212,255,0.25);
}
.filter-count {
    font-family: 'Inter', sans-serif;
    display: inline-flex; align-items: center; justify-content: center;
    padding: 0 4px; margin-left: 4px; color: var(--text-secondary);
    font-size: 0.78rem;
}
.filter-tab.active .filter-count { color: var(--cyan); }

/* ── Tool Cards (Enhanced) ── */
.tools-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 14px; width: 100%; }

.tool-card {
    display: flex; align-items: flex-start; gap: 14px;
    background: var(--glass-bg); border: 1px solid var(--glass-border);
    border-radius: 14px; padding: 18px 20px;
    backdrop-filter: blur(10px);
    transition: border-color 0.25s ease, background 0.25s ease, transform 0.25s ease;
}
.tool-card:hover { border-color: rgba(0,212,255,0.2); background: rgba(0,212,255,0.03); transform: translateY(-2px); }
.tool-card.hidden { display: none; }
.tool-card img { width: 40px; height: 40px; border-radius: 10px; flex-shrink: 0; margin-top: 2px; }
.tool-card-info { display: flex; flex-direction: column; gap: 6px; min-width: 0; flex: 1; }
.tool-card-name { font-size: 1rem; font-weight: 700; color: #fff; }
.tool-card-plan { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.5; }
.tool-card-meta { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-top: 2px; }
.tool-card-cat {
    display: inline-flex; align-items: center; gap: 4px;
    padding: 3px 10px; border-radius: 6px;
    font-size: 0.75rem; font-weight: 600;
    background: rgba(139,92,246,0.08); color: var(--purple);
    border: 1px solid rgba(139,92,246,0.15);
}
.tool-card-cat.cat-dev { background: rgba(0,212,255,0.08); color: var(--cyan); border-color: rgba(0,212,255,0.15); }
.tool-card-cat.cat-cloud { background: rgba(139,92,246,0.08); color: var(--purple); border-color: rgba(139,92,246,0.15); }
.tool-card-cat.cat-learn { background: rgba(0,255,136,0.08); color: var(--green); border-color: rgba(0,255,136,0.15); }
.tool-card-cat.cat-design { background: rgba(249,115,22,0.08); color: var(--orange); border-color: rgba(249,115,22,0.15); }
.tool-card-cat.cat-security { background: rgba(239,68,68,0.08); color: #f87171; border-color: rgba(239,68,68,0.15); }
.tool-card-cat.cat-domain { background: rgba(251,191,36,0.08); color: var(--yellow); border-color: rgba(251,191,36,0.15); }
.tool-card-cat.cat-prod { background: rgba(0,212,255,0.06); color: #67e8f9; border-color: rgba(0,212,255,0.12); }
.tool-card-cat.cat-data { background: rgba(0,255,136,0.06); color: #6ee7b7; border-color: rgba(0,255,136,0.12); }
.tool-card-validity {
    display: inline-flex; align-items: center; gap: 4px;
    font-size: 0.75rem; font-weight: 600; padding: 3px 10px;
    border-radius: 6px; background: rgba(0,255,136,0.08); color: var(--green);
    border: 1px solid rgba(0,255,136,0.15);
}
.tool-card-validity.forever { background: rgba(0,212,255,0.08); color: var(--cyan); border-color: rgba(0,212,255,0.15); }

/* ── AI Models Section (Pack 2 Detail) ── */
.models-section {
    width: 100%; max-width: 1060px; margin: 0 auto;
    padding: 0 24px 60px;
    display: flex; flex-direction: column; align-items: center; gap: 28px;
}
.models-group {
    width: 100%; display: flex; flex-direction: column; gap: 14px;
}
.models-group-title {
    display: flex; align-items: center; gap: 10px;
    font-size: 1.1rem; font-weight: 700; color: var(--text-primary);
}
.models-group-title .mg-dot {
    width: 10px; height: 10px; border-radius: 50%;
}
.models-group-title .mg-dot.green { background: var(--green); }
.models-group-title .mg-dot.cyan { background: var(--cyan); }
.models-group-title .mg-dot.purple { background: var(--purple); }
.models-group-title .mg-dot.orange { background: var(--orange); }
.models-group-title .mg-dot.red { background: var(--red); }
.models-group-title .mg-dot.yellow { background: var(--yellow); }
.models-group-grid {
    display: flex; flex-wrap: wrap; gap: 10px;
}
.detail-model-pill {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 12px 22px; border-radius: 14px;
    font-family: 'Inter', sans-serif;
    font-size: 0.95rem; font-weight: 600; border: 1px solid;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    animation: chipPulse 3s ease-in-out infinite;
}
.detail-model-pill:hover { transform: translateY(-2px); }
.detail-model-pill .chip-badge { font-size: 0.72rem; padding: 2px 8px; border-radius: 8px; font-weight: 700; }

/* ── Detail Features Grid ── */
.detail-features { width: 100%; max-width: 1060px; margin: 0 auto; padding: 0 24px 60px; }
.detail-features h3 { font-size: 1.3rem; font-weight: 700; margin-bottom: 18px; text-align: center; }
.detail-feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.detail-feature-item {
    display: flex; align-items: flex-start; gap: 12px;
    padding: 18px 22px; background: var(--glass-bg);
    border: 1px solid var(--glass-border); border-radius: 14px;
    font-size: 1.05rem; color: var(--text-secondary);
    transition: border-color 0.3s ease, transform 0.3s ease;
}
.detail-feature-item:hover { border-color: rgba(0,255,136,0.2); transform: translateY(-2px); }
.detail-feature-item i { color: var(--green); margin-top: 3px; flex-shrink: 0; font-size: 1rem; }

/* ── Detail CTA Section ── */
.detail-cta {
    width: 100%; padding: 60px 24px;
    background: linear-gradient(180deg, transparent 0%, rgba(0,212,255,0.03) 50%, transparent 100%);
    display: flex; flex-direction: column; align-items: center; gap: 20px;
    text-align: center;
}
.detail-cta.purple-theme {
    background: linear-gradient(180deg, transparent 0%, rgba(139,92,246,0.04) 50%, transparent 100%);
}
.detail-cta h2 { font-size: 1.6rem; font-weight: 700; color: #fff; }
.detail-cta p { font-size: 1.05rem; color: var(--text-secondary); max-width: 500px; }
.detail-cta .price-compare {
    display: flex; align-items: center; gap: 12px; margin: 8px 0;
}
.detail-cta .price-compare .old {
    font-family: 'Inter', sans-serif;
    font-size: 1.3rem; text-decoration: line-through; color: var(--text-secondary); opacity: 0.5;
}
.detail-cta .price-compare .new {
    font-family: 'Inter', sans-serif;
    font-size: 2.2rem; font-weight: 700;
}
.detail-cta .price-compare .new.cyan { color: var(--cyan); }
.detail-cta .price-compare .new.purple { color: var(--purple); }

.whatsapp-btn {
    display: inline-flex; align-items: center; gap: 10px;
    padding: 18px 44px; background: linear-gradient(135deg, #25d366, #128c7e);
    color: #fff; border: none; border-radius: 16px;
    font-family: 'Tatsam Bengali', sans-serif;
    font-size: 1.15rem; font-weight: 600; cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.3s ease;
    box-shadow: 0 4px 20px rgba(37,211,102,0.3);
    text-decoration: none; min-height: 56px;
    letter-spacing: 0.3px;
}
.whatsapp-btn:hover { transform: translateY(-3px); box-shadow: 0 8px 35px rgba(37,211,102,0.5); }
.whatsapp-btn:active { transform: scale(0.97); box-shadow: 0 4px 15px rgba(37,211,102,0.3); }

/* ── Divider ── */
.detail-divider {
    width: 100%; max-width: 1060px; margin: 0 auto; padding: 0 24px;
    height: 1px; background: linear-gradient(90deg, transparent, var(--glass-border), transparent);
}

/* ═══════════════════ */
/* ── RESPONSIVE ──   */
/* ═══════════════════ */
@media (max-width: 900px) {
    .cards-container { grid-template-columns: 1fr; max-width: 540px; }
    .copilot-banner { flex-direction: column; text-align: center; align-items: center; padding: 24px 20px; }
    .copilot-banner-badges { justify-content: center; }
    .copilot-features-grid { grid-template-columns: repeat(2, 1fr); }
    .highlight-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .landing { padding: 36px 18px 50px; gap: 28px; }
    .glass-card { padding: 26px 22px; }
    .detail-feature-grid { grid-template-columns: 1fr; }
    .tools-grid { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
    .detail-page { padding: 0; }
    .detail-hero { padding: 80px 18px 40px; }
    .faq-question { padding: 16px 20px; font-size: 1.05rem; }
    .copilot-detail-hero { padding: 24px 18px; }
    .copilot-features-grid { grid-template-columns: 1fr; }
    .highlight-grid { grid-template-columns: 1fr; }
    .detail-copilot-section, .highlight-section, .models-section, .detail-features { padding-left: 18px; padding-right: 18px; }
    .all-tools-section { padding: 40px 18px; }
    .detail-hero-stats { gap: 12px; }
    .detail-stat-box { padding: 16px 20px; min-width: 120px; }
}

@media (max-width: 480px) {
    html { font-size: 15px; }
    .price-amount { font-size: 2.2rem; }
    .top-badge { font-size: 0.85rem; padding: 8px 16px; }
    .tools-grid { grid-template-columns: 1fr; }
    .copilot-banner-title { font-size: 1.1rem; }
    .copilot-detail-stats { flex-direction: column; align-items: center; }
    .card-title { font-size: 1.1rem; }
    .copilot-card-stats { flex-direction: column; }
    .copilot-banner-badges { flex-direction: column; align-items: center; }
    .detail-hero-price .current-price { font-size: 2.2rem; }
    .detail-hero-stats { flex-direction: column; align-items: center; }
    .detail-stat-box { width: 100%; max-width: 280px; }
    .filter-tabs { gap: 6px; }
    .filter-tab { padding: 6px 14px; font-size: 0.82rem; }
    .back-btn { top: 12px; left: 12px; padding: 8px 14px; font-size: 0.85rem; }
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.2); }

::selection { background: rgba(0,212,255,0.25); color: #fff; }
::-moz-selection { background: rgba(0,212,255,0.25); color: #fff; }

/* ── Footer ── */
.site-footer {
    width: 100%; padding: 28px 24px 20px; text-align: center;
    border-top: 1px solid var(--glass-border);
    margin-top: 40px;
}
.site-footer p {
    font-size: 0.85rem; color: var(--text-secondary); opacity: 0.6;
    letter-spacing: 0.3px;
}

/* ── Entrance Animations ── */
.landing-heading, .landing-sub, .copilot-banner, .cards-container, .bottom-note, .faq-section {
    animation: fadeUp 0.6s ease forwards;
    opacity: 0;
}
.landing-heading { animation-delay: 0.1s; }
.landing-sub { animation-delay: 0.2s; }
.copilot-banner { animation-delay: 0.3s; }
.cards-container { animation-delay: 0.4s; }
.bottom-note { animation-delay: 0.5s; }
.faq-section { animation-delay: 0.55s; }

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}