/* =============================================
   PrepZone — Landing Page Styles
   Premium, Mobile-First Design
   ============================================= */
:root {
    --primary: #1e3a5f;
    --primary-light: #2d5a8e;
    --accent: #f97316;
    --accent-hover: #ea580c;
    --bg: #f8f9fc;
    --surface: #ffffff;
    --text: #1a1d2e;
    --text2: #4a5568;
    --text3: #9aa5b4;
    --border: #e5e9f0;
    --radius: 16px;
    --radius-full: 50px;
    --shadow: 0 1px 3px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
    --font: 'Inter', sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { font-family: var(--font); color: var(--text); background: var(--bg); line-height: 1.6; overflow-x: hidden; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; }
.section-inner { max-width: 1140px; margin: 0 auto; padding: 0 24px; }
.gradient-text { background: linear-gradient(135deg, #7c3aed, #f97316); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

/* === NAVBAR === */
.landing-nav {
    position: fixed; top: 38px; left: 0; right: 0; z-index: 1000;
    background: rgba(255,255,255,0.7); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid transparent; transition: all 0.3s ease;
}
.landing-nav.scrolled { top: 0; background: rgba(255,255,255,0.95); border-bottom-color: var(--border); box-shadow: var(--shadow); }
.nav-inner {
    max-width: 1140px; margin: 0 auto; padding: 0 24px;
    display: flex; align-items: center; justify-content: space-between; height: 72px;
}
.nav-brand { display: flex; align-items: center; gap: 10px; }
.brand-icon { font-size: 28px; }
.brand-text { font-size: 22px; font-weight: 900; color: var(--primary); }
.nav-links { display: flex; gap: 32px; }
.nav-links a { font-size: 15px; font-weight: 600; color: var(--text2); transition: color 0.2s; }
.nav-links a:hover { color: var(--primary); }
.nav-actions { display: flex; align-items: center; gap: 12px; }
.nav-login-btn {
    font-size: 14px; font-weight: 700; color: var(--primary); padding: 8px 20px;
    border-radius: var(--radius-full); border: 2px solid var(--border); transition: all 0.2s;
}
.nav-login-btn:hover { border-color: var(--primary); background: rgba(30,58,95,0.05); }
.nav-signup-btn {
    font-size: 14px; font-weight: 700; color: #fff; padding: 8px 20px;
    border-radius: var(--radius-full); background: linear-gradient(135deg, var(--accent), #fb923c);
    transition: all 0.2s; border: 2px solid transparent;
}
.nav-signup-btn:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(249,115,22,0.4); }
.nav-hamburger {
    display: none; flex-direction: column; gap: 5px; background: none; border: none;
    cursor: pointer; padding: 8px;
}
.nav-hamburger span {
    display: block; width: 24px; height: 2.5px; background: var(--text);
    border-radius: 2px; transition: all 0.3s ease;
}
.nav-hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-hamburger.active span:nth-child(2) { opacity: 0; }
.nav-hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
.mobile-menu {
    display: none; flex-direction: column; padding: 16px 24px 24px;
    background: rgba(255,255,255,0.98); border-top: 1px solid var(--border);
}
.mobile-menu.open { display: flex; }
.mobile-menu a { padding: 12px 0; font-size: 16px; font-weight: 600; color: var(--text2); border-bottom: 1px solid var(--border); }
.mobile-menu-actions { display: flex; gap: 12px; margin-top: 16px; }
.mobile-menu-actions a { flex: 1; text-align: center; border-bottom: none; }

/* === HERO === */
.hero {
    padding: 160px 24px 80px; position: relative;
    background: linear-gradient(135deg, #f0f4ff 0%, #fef3e8 50%, #f5f0ff 100%);
    overflow: hidden; display: flex; flex-wrap: wrap; align-items: center; justify-content: center;
    max-width: 100%; min-height: 90vh;
}
.hero-bg-shapes { position: absolute; inset: 0; pointer-events: none; }
.shape {
    position: absolute; border-radius: 50%; opacity: 0.15;
    animation: floatShape 20s ease-in-out infinite;
}
.shape-1 { width: 400px; height: 400px; background: #7c3aed; top: -100px; right: -100px; animation-delay: 0s; }
.shape-2 { width: 300px; height: 300px; background: #f97316; bottom: -50px; left: -50px; animation-delay: -7s; }
.shape-3 { width: 200px; height: 200px; background: #2563eb; top: 40%; left: 30%; animation-delay: -14s; }
@keyframes floatShape {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -20px) scale(1.05); }
    66% { transform: translate(-20px, 15px) scale(0.95); }
}
.hero-inner { max-width: 560px; position: relative; z-index: 2; text-align: center; }
.hero-badge {
    display: inline-block; padding: 8px 20px; border-radius: var(--radius-full);
    background: rgba(124,58,237,0.1); color: #7c3aed; font-size: 14px; font-weight: 700;
    margin-bottom: 24px; border: 1px solid rgba(124,58,237,0.2);
}
.hero-title { font-size: 48px; font-weight: 900; line-height: 1.15; margin-bottom: 20px; color: var(--text); }
.hero-subtitle { font-size: 17px; color: var(--text2); line-height: 1.7; margin-bottom: 32px; }
.hero-cta { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 40px; }
.cta-primary {
    padding: 16px 36px; border-radius: var(--radius-full); font-size: 16px; font-weight: 800;
    color: #fff; background: linear-gradient(135deg, var(--accent), #fb923c);
    box-shadow: 0 4px 20px rgba(249,115,22,0.4); transition: all 0.3s ease;
}
.cta-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(249,115,22,0.5); }
.cta-secondary {
    padding: 16px 36px; border-radius: var(--radius-full); font-size: 16px; font-weight: 700;
    color: var(--primary); border: 2px solid var(--border); background: var(--surface);
    transition: all 0.3s ease;
}
.cta-secondary:hover { border-color: var(--primary); transform: translateY(-2px); }
.hero-trust { display: flex; align-items: center; gap: 12px; justify-content: center; font-size: 14px; color: var(--text2); }
.trust-avatars { display: flex; }
.trust-avatar {
    width: 32px; height: 32px; border-radius: 50%; color: #fff; font-size: 13px; font-weight: 800;
    display: flex; align-items: center; justify-content: center; margin-left: -8px;
    border: 2px solid #fff;
}
.trust-avatar:first-child { margin-left: 0; }
.hero-visual {
    position: relative; z-index: 2; width: 420px; height: 380px; margin-left: 40px; flex-shrink: 0;
}
.hero-card {
    position: absolute; background: var(--surface); border-radius: var(--radius);
    padding: 20px 24px; box-shadow: var(--shadow-lg); border: 1px solid var(--border);
    animation: cardFloat 6s ease-in-out infinite;
}
.glass-card {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    box-shadow: 0 10px 40px rgba(30, 58, 95, 0.1);
}
.hero-card-1 { top: 0; left: -20px; width: 260px; animation-delay: 0s; z-index: 3; }
.hero-card-2 { top: 120px; right: -20px; width: 240px; animation-delay: -2s; z-index: 2; }
.hero-card-3 { bottom: 30px; left: 0; animation-delay: -4s; z-index: 4; }
.hero-card-4 { bottom: -10px; right: 40px; animation-delay: -1s; z-index: 5; }
@keyframes cardFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}
.hc-icon { font-size: 24px; margin-bottom: 6px; }
.hc-title { font-size: 14px; font-weight: 700; margin-bottom: 8px; }
.hc-bar { height: 6px; background: var(--border); border-radius: 3px; overflow: hidden; }
.hc-fill { height: 100%; border-radius: 3px; }
.hc-stat { font-size: 12px; color: var(--text3); margin-top: 6px; font-weight: 600; }
.hc-score { font-size: 15px; font-weight: 800; white-space: nowrap; }

/* === FEATURES === */
.features { padding: 100px 0; background: var(--surface); }
.section-badge {
    display: inline-block; padding: 6px 18px; border-radius: var(--radius-full);
    background: rgba(124,58,237,0.08); color: #7c3aed; font-size: 13px; font-weight: 700;
    margin-bottom: 16px;
}
.section-title { font-size: 36px; font-weight: 900; margin-bottom: 12px; }
.section-subtitle { font-size: 16px; color: var(--text2); margin-bottom: 48px; }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card {
    padding: 32px 24px; border-radius: var(--radius); border: 1px solid var(--border);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275); background: var(--surface);
    position: relative; overflow: hidden;
}
.feature-card::before {
    content: ''; position: absolute; inset: 0; background: radial-gradient(circle at top right, rgba(124,58,237,0.05), transparent 70%); opacity: 0; transition: opacity 0.4s ease;
}
.feature-card:hover { transform: translateY(-8px); box-shadow: 0 20px 40px rgba(15,23,42,0.08); border-color: rgba(124,58,237,0.3); }
.feature-card:hover::before { opacity: 1; }
.fc-icon {
    width: 56px; height: 56px; border-radius: 14px; font-size: 28px;
    display: flex; align-items: center; justify-content: center; margin-bottom: 20px;
    background: linear-gradient(135deg, rgba(124,58,237,0.1), rgba(124,58,237,0.02));
    border: 1px solid rgba(124,58,237,0.1);
}
.feature-card h3 { font-size: 18px; font-weight: 800; margin-bottom: 8px; position: relative; z-index: 2; }
.feature-card p { font-size: 14px; color: var(--text2); line-height: 1.6; position: relative; z-index: 2; }

/* === SUBJECTS === */
.subjects { padding: 100px 0; }
.subjects-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.subject-card {
    padding: 36px 28px; border-radius: var(--radius); color: #fff;
    position: relative; overflow: hidden; transition: transform 0.3s ease;
}
.subject-card::before {
    content: ''; position: absolute; top: -40%; right: -20%; width: 200px; height: 200px;
    border-radius: 50%; background: rgba(255,255,255,0.1);
}
.subject-card:hover { transform: translateY(-4px); }
.sc-math { background: linear-gradient(135deg, #1e3a5f, #2d5a8e); }
.sc-mech { background: linear-gradient(135deg, #92400e, #c67a2e); }
.sc-eng { background: linear-gradient(135deg, #065f46, #10b981); }
.sc-emoji { font-size: 40px; margin-bottom: 16px; }
.subject-card h3 { font-size: 20px; font-weight: 800; margin-bottom: 8px; color: #fff; }
.subject-card p { font-size: 14px; opacity: 0.85; line-height: 1.6; margin-bottom: 16px; }
.sc-tag {
    display: inline-block; padding: 6px 16px; border-radius: var(--radius-full);
    background: rgba(255,255,255,0.2); font-size: 13px; font-weight: 700;
}

/* === STATS === */
.stats-section {
    padding: 80px 0; background: linear-gradient(135deg, var(--primary), #2d5a8e); color: #fff;
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; text-align: center; }
.stat-num { font-size: 42px; font-weight: 900; }
.stat-lbl { font-size: 15px; opacity: 0.8; margin-top: 4px; font-weight: 600; }

/* === TESTIMONIALS === */
.testimonials { padding: 100px 0; background: var(--surface); }
.testimonials-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.testimonial-card {
    padding: 32px 28px; border-radius: var(--radius); border: 1px solid var(--border);
    transition: all 0.4s ease; background: var(--surface); position: relative;
    box-shadow: 0 4px 12px rgba(0,0,0,0.03);
}
.testimonial-card:hover { box-shadow: 0 20px 40px rgba(124,58,237,0.08); transform: translateY(-6px); border-color: rgba(124,58,237,0.2); }
.tc-stars { font-size: 16px; margin-bottom: 12px; }
.testimonial-card p { font-size: 15px; color: var(--text2); line-height: 1.7; margin-bottom: 20px; }
.tc-author { display: flex; align-items: center; gap: 12px; }
.tc-avatar {
    width: 40px; height: 40px; border-radius: 50%; color: #fff; font-size: 16px; font-weight: 800;
    display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.tc-author strong { font-size: 14px; }
.tc-author span { font-size: 12px; color: var(--text3); }

/* === FINAL CTA === */
.final-cta {
    padding: 100px 0; text-align: center;
    background: linear-gradient(135deg, #f5f0ff, #fef3e8);
}
.final-cta h2 { font-size: 36px; font-weight: 900; margin-bottom: 12px; }
.final-cta p { font-size: 17px; color: var(--text2); margin-bottom: 32px; }
.cta-big { font-size: 18px; padding: 18px 48px; }

/* === COUNTDOWN === */
.countdown-section { padding: 0; margin-top: -40px; position: relative; z-index: 10; }
.countdown-card {
    background: linear-gradient(135deg, #0f172a, #1e3a5f, #312e81);
    border-radius: var(--radius); padding: 40px; display: flex;
    align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 32px;
    box-shadow: 0 16px 48px rgba(15,23,42,0.3);
}
.countdown-timer { display: flex; gap: 16px; }
.countdown-block {
    text-align: center; background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.12); border-radius: 14px;
    padding: 16px 20px; min-width: 80px;
}
.cd-num { display: block; font-size: 32px; font-weight: 900; color: #fff; line-height: 1; margin-bottom: 4px; font-family: 'JetBrains Mono', monospace; }
.cd-label { font-size: 13px; color: rgba(255,255,255,0.7); font-weight: 600; text-transform: uppercase; }

/* === SEO CONTENT === */
.seo-content { padding: 80px 0; background: var(--bg); }
.seo-article { max-width: 860px; margin: 0 auto; color: var(--text2); line-height: 1.8; font-size: 16px; padding: 40px; background: var(--surface); border-radius: var(--radius); box-shadow: var(--shadow-md); border: 1px solid var(--border); }
.seo-article h2 { font-size: 32px; font-weight: 900; color: var(--text); margin-bottom: 24px; line-height: 1.3; }
.seo-article h3 { font-size: 24px; font-weight: 800; color: var(--text); margin-top: 40px; margin-bottom: 16px; border-left: 5px solid var(--primary); padding-left: 16px; }
.seo-article p { margin-bottom: 24px; font-size: 16px; }
.seo-article strong { color: var(--text); font-weight: 800; }

/* === EXAM PATTERN === */
.exam-pattern { padding: 100px 0; background: var(--bg); }
.pattern-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-bottom: 32px; }
.pattern-card {
    padding: 28px; border-radius: var(--radius); color: #fff;
    position: relative; overflow: hidden;
}
.pattern-card::after {
    content: ''; position: absolute; top: -30%; right: -15%; width: 150px; height: 150px;
    border-radius: 50%; background: rgba(255,255,255,0.08);
}
.pc-math { background: linear-gradient(135deg, #1e3a5f, #3b7dd8); }
.pc-mech { background: linear-gradient(135deg, #92400e, #d97706); }
.pc-eng { background: linear-gradient(135deg, #065f46, #10b981); }
.pc-header { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.pc-icon { font-size: 28px; }
.pc-subject { font-size: 18px; font-weight: 800; }
.pc-questions { font-size: 28px; font-weight: 900; margin-bottom: 4px; }
.pc-marks { font-size: 14px; opacity: 0.8; margin-bottom: 16px; padding: 4px 12px; background: rgba(255,255,255,0.15); border-radius: 20px; display: inline-block; }
.pc-topics { font-size: 13px; opacity: 0.75; line-height: 1.6; }
.pattern-summary {
    display: flex; flex-wrap: wrap; gap: 16px; justify-content: center;
    padding: 20px 28px; background: var(--surface); border-radius: var(--radius);
    border: 1px solid var(--border);
}
.ps-item { font-size: 15px; padding: 8px 20px; color: var(--text2); }
.ps-item strong { color: var(--text); }

/* === IMPORTANT DATES TIMELINE === */
.dates-section { padding: 100px 0; }
.timeline { max-width: 680px; margin: 0 auto; }
.timeline-item {
    display: flex; align-items: center; gap: 16px; padding: 18px 20px;
    border-radius: 12px; margin-bottom: 8px; background: var(--surface);
    border: 1px solid var(--border); transition: all 0.2s ease;
}
.timeline-item:hover { box-shadow: var(--shadow-md); }
.timeline-item.done { opacity: 0.7; }
.timeline-item.exam { border-color: #7c3aed; background: #faf5ff; }
.tl-dot { font-size: 24px; flex-shrink: 0; }
.tl-content { flex: 1; }
.tl-event { font-size: 15px; font-weight: 700; }
.tl-date { font-size: 13px; color: var(--text3); }
.tl-badge { font-size: 12px; font-weight: 700; padding: 4px 12px; border-radius: 20px; white-space: nowrap; }
.tl-done { background: #dcfce7; color: #16a34a; }
.tl-upcoming { background: #fef3c7; color: #d97706; }
.tl-exam { background: #ede9fe; color: #7c3aed; }

/* === SYLLABUS === */
.syllabus-section { padding: 100px 0; background: var(--surface); }
.syllabus-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.syl-card {
    padding: 28px; border-radius: var(--radius); color: #fff;
    position: relative; overflow: hidden;
}
.syl-card h3 { font-size: 18px; font-weight: 800; margin-bottom: 16px; color: #fff; }
.syl-card ul { list-style: none; padding: 0; }
.syl-card li {
    padding: 6px 0; font-size: 14px; opacity: 0.9; line-height: 1.5;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding-left: 16px; position: relative;
}
.syl-card li::before { content: '•'; position: absolute; left: 0; color: rgba(255,255,255,0.5); }
.syl-card li:last-child { border-bottom: none; }

/* === HOW IT WORKS === */
.how-it-works { padding: 100px 0; }
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.step-card { text-align: center; padding: 32px 24px; }
.step-num {
    width: 56px; height: 56px; border-radius: 50%; font-size: 24px; font-weight: 900;
    display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, #7c3aed, #a855f7); color: #fff;
    margin: 0 auto 20px; box-shadow: 0 4px 16px rgba(124,58,237,0.3);
}
.step-card h3 { font-size: 18px; font-weight: 800; margin-bottom: 8px; }
.step-card p { font-size: 14px; color: var(--text2); line-height: 1.6; }

/* === FAQ === */
.faq-section { padding: 100px 0; background: var(--bg); }
.faq-list { max-width: 720px; margin: 0 auto; }
.faq-item {
    margin-bottom: 8px; border-radius: 12px; overflow: hidden;
    border: 1px solid var(--border); background: var(--surface);
}
.faq-q {
    display: flex; justify-content: space-between; align-items: center;
    padding: 18px 20px; cursor: pointer; font-size: 15px; font-weight: 700;
    transition: background 0.2s;
}
.faq-q:hover { background: #f8f9fc; }
.faq-arrow { font-size: 12px; color: var(--text3); transition: transform 0.3s; }
.faq-item.open .faq-arrow { transform: rotate(180deg); }
.faq-a {
    max-height: 0; overflow: hidden; transition: max-height 0.3s ease, padding 0.3s ease;
    font-size: 14px; color: var(--text2); line-height: 1.7; padding: 0 20px;
}
.faq-item.open .faq-a { max-height: 300px; padding: 0 20px 18px; }

/* === ANNOUNCEMENT BAR === */
.announce-bar {
    background: linear-gradient(90deg, #0f172a, #1e3a5f, #312e81);
    color: #fff; padding: 10px 0; font-size: 13px; font-weight: 600;
    overflow: hidden; position: relative; z-index: 1001;
    transition: transform 0.3s ease;
}
.announce-content {
    display: flex; white-space: nowrap;
    animation: ticker 30s linear infinite;
}
.announce-content span { padding: 0 60px; }
@keyframes ticker { 0%{transform:translateX(0)} 100%{transform:translateX(-50%)} }

/* === PREPARATION STRATEGY === */
.prep-strategy { padding: 100px 0; background: var(--surface); }
.strategy-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.strat-card {
    padding: 24px; border-radius: var(--radius); border: 1px solid var(--border);
    transition: all 0.3s ease; background: var(--bg);
}
.strat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: transparent; }
.strat-icon { font-size: 32px; margin-bottom: 12px; }
.strat-card h4 { font-size: 16px; font-weight: 800; margin-bottom: 8px; color: var(--text); }
.strat-card p { font-size: 14px; color: var(--text2); line-height: 1.6; }

/* === TOP COLLEGES === */
.colleges-section { padding: 100px 0; }
.colleges-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.college-card {
    display: flex; align-items: center; gap: 16px;
    padding: 20px; border-radius: var(--radius); border: 1px solid var(--border);
    background: var(--surface); transition: all 0.3s ease;
}
.college-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); border-color: transparent; }
.cc-rank {
    width: 44px; height: 44px; border-radius: 50%; flex-shrink: 0;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #fff; font-size: 18px; font-weight: 900;
    display: flex; align-items: center; justify-content: center;
}
.college-card h4 { font-size: 15px; font-weight: 800; margin-bottom: 2px; }
.college-card p { font-size: 13px; color: var(--text3); }

/* === FOOTER === */
.landing-footer { padding: 60px 0 24px; background: var(--text); color: rgba(255,255,255,0.7); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand p { font-size: 14px; margin-top: 12px; line-height: 1.6; }
.footer-brand .brand-text { color: #fff; }
.footer-links h4 { color: #fff; font-size: 15px; margin-bottom: 16px; }
.footer-links a { display: block; font-size: 14px; padding: 4px 0; transition: color 0.2s; }
.footer-links a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 24px; text-align: center; font-size: 13px; }

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 968px) {
    .hero { flex-direction: column; text-align: center; padding: 140px 24px 60px; min-height: auto; gap: 40px; }
    .hero-inner { max-width: 100%; }
    .hero-visual { width: 100%; max-width: 420px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; height: auto; position: relative; }
    .hero-card { position: relative; animation: none; width: 100% !important; top: 0 !important; left: 0 !important; right: 0 !important; bottom: 0 !important; }
    .hero-title { font-size: 36px; }
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .pattern-grid, .subjects-grid, .syllabus-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
    .testimonials-grid { grid-template-columns: 1fr; }
    .steps-grid { grid-template-columns: 1fr; gap: 16px; }
    .strategy-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    .countdown-card { flex-direction: column; text-align: center; padding: 32px 24px; }
    .countdown-timer { justify-content: center; }
}
@media (max-width: 768px) {
    .nav-links, .nav-actions { display: none; }
    .nav-hamburger { display: flex; }
    .nav-inner { height: 64px; }
    .hero { padding: 100px 20px 50px; }
    .hero-title { font-size: 30px; }
    .hero-subtitle { font-size: 15px; }
    .cta-primary, .cta-secondary { padding: 14px 28px; font-size: 15px; }
    .hero-cta { flex-direction: column; align-items: center; }
    .section-title { font-size: 28px; }
    .features-grid, .strategy-grid { grid-template-columns: 1fr; }
    .colleges-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .stat-num { font-size: 32px; }
}
    .final-cta h2 { font-size: 28px; }
    .footer-grid { grid-template-columns: 1fr; gap: 24px; }
    .countdown-timer { gap: 10px; }
    .countdown-block { padding: 12px 14px; min-width: 65px; }
    .cd-num { font-size: 28px; }
    .pattern-summary { gap: 8px; }
    .ps-item { font-size: 13px; padding: 6px 14px; }
    .announce-bar { font-size: 12px; }
}
@media (max-width: 480px) {
    .hero-title { font-size: 26px; }
    .hero-badge { font-size: 12px; padding: 6px 14px; }
    .section-title { font-size: 24px; }
    .feature-card { padding: 24px 20px; }
    .cta-big { font-size: 16px; padding: 16px 36px; }
    .stat-num { font-size: 28px; }
    .countdown-block { padding: 10px 12px; min-width: 60px; }
    .cd-num { font-size: 24px; }
    .countdown-section { margin-top: -20px; }
    .syl-card { padding: 22px 18px; }
    .strat-card { padding: 20px; }
    .college-card { padding: 16px; }
    .final-cta h2 { font-size: 24px; }
    .footer-bottom { font-size: 12px; }
}

/* =============================================
   AI CHATBOT WIDGET
   ============================================= */
.chatbot-fab {
    width: 60px; height: 60px; border-radius: 50%;
    background: linear-gradient(135deg, #7c3aed, #a855f7);
    color: #fff; border: none; cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 6px 24px rgba(124,58,237,0.45);
    transition: all 0.3s ease; position: fixed; bottom: 24px; right: 24px; z-index: 9999;
}
.chatbot-fab:hover { transform: scale(1.1) rotate(5deg); box-shadow: 0 8px 30px rgba(124,58,237,0.5); }
.chatbot-fab.active { background: linear-gradient(135deg, #dc2626, #ef4444); box-shadow: 0 6px 24px rgba(220,38,38,0.4); }
.chatbot-fab-icon { font-size: 28px; }
.chatbot-fab-pulse {
    position: absolute; inset: -4px; border-radius: 50%;
    border: 2px solid rgba(124,58,237,0.6);
    animation: chatPulse 2s infinite;
}
@keyframes chatPulse { 0%{transform:scale(1);opacity:1} 100%{transform:scale(1.5);opacity:0} }
.chatbot-window {
    position: fixed; bottom: 96px; right: 24px;
    width: 380px; height: 520px; z-index: 9999;
    background: var(--surface); border-radius: 20px;
    box-shadow: 0 16px 48px rgba(0,0,0,0.2);
    display: none; flex-direction: column; overflow: hidden;
    border: 1px solid rgba(124,58,237,0.1); font-family: var(--font);
}
.chatbot-window.open { display: flex; animation: chatSlideUp 0.3s ease; }
@keyframes chatSlideUp { from{opacity:0;transform:translateY(20px)} to{opacity:1;transform:translateY(0)} }
.chatbot-header {
    background: linear-gradient(135deg, #5b21b6, #7c3aed, #a855f7);
    color: #fff; padding: 16px 18px;
    display: flex; align-items: center; justify-content: space-between;
}
.chatbot-header-info { display: flex; align-items: center; gap: 12px; }
.chatbot-avatar {
    font-size: 28px; width: 42px; height: 42px;
    background: rgba(255,255,255,0.15); border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
}
.chatbot-name { font-weight: 800; font-size: 16px; }
.chatbot-status {
    font-size: 11px; opacity: 0.85;
    display: flex; align-items: center; gap: 4px;
}
.chatbot-status::before {
    content: ''; width: 6px; height: 6px; border-radius: 50%;
    background: #4ade80; display: inline-block;
    animation: statusPulse 2s infinite;
}
@keyframes statusPulse { 0%,100%{opacity:1} 50%{opacity:0.4} }
.chatbot-header-actions { display: flex; gap: 6px; }
.chatbot-btn {
    width: 30px; height: 30px; border-radius: 50%;
    background: rgba(255,255,255,0.15); color: #fff;
    border: none; cursor: pointer; font-size: 16px;
    display: flex; align-items: center; justify-content: center;
    transition: background 0.2s;
}
.chatbot-btn:hover { background: rgba(255,255,255,0.3); }
.chatbot-body {
    flex: 1; padding: 16px; overflow-y: auto;
    display: flex; flex-direction: column; gap: 12px;
    background: linear-gradient(180deg, #f5f3ff, #faf8ff);
}
.chat-msg { display: flex; }
.chat-msg.user { justify-content: flex-end; }
.chat-bubble {
    max-width: 82%; padding: 12px 16px; border-radius: 18px;
    font-size: 14px; line-height: 1.65; word-wrap: break-word;
    box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}
.chat-msg.bot .chat-bubble {
    background: #fff; color: var(--text);
    border: 1px solid #e8e5f0; border-bottom-left-radius: 6px;
}
.chat-msg.user .chat-bubble {
    background: linear-gradient(135deg, #7c3aed, #a855f7); color: #fff;
    border-bottom-right-radius: 6px;
}
.chatbot-suggestions { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 4px; }
.chat-suggestion {
    padding: 8px 14px; border-radius: 20px; font-size: 12px; font-weight: 700;
    background: #fff; color: #7c3aed; border: 1.5px solid #ddd5f5; cursor: pointer;
    transition: all 0.2s;
}
.chat-suggestion:hover { background: #7c3aed; color: #fff; border-color: #7c3aed; transform: translateY(-1px); }
.chatbot-footer { padding: 12px 14px; border-top: 1px solid #e8e5f0; background: #fff; }
.chatbot-input-row { display: flex; gap: 8px; }
.chatbot-input {
    flex: 1; padding: 10px 16px; border: 2px solid #e8e5f0;
    border-radius: 24px; font-size: 14px; font-family: inherit;
    background: #faf8ff; outline: none; transition: border-color 0.2s; color: var(--text);
}
.chatbot-input:focus { border-color: #7c3aed; background: #fff; }
.chatbot-send {
    width: 40px; height: 40px; border-radius: 50%; flex-shrink: 0;
    background: linear-gradient(135deg, #7c3aed, #a855f7);
    color: #fff; border: none; cursor: pointer; font-size: 18px; font-weight: 700;
    display: flex; align-items: center; justify-content: center;
    transition: all 0.2s; box-shadow: 0 2px 8px rgba(124,58,237,0.3);
}
.chatbot-send:hover { transform: scale(1.08); box-shadow: 0 4px 12px rgba(124,58,237,0.4); }
.chatbot-clear {
    border: none; background: none; color: var(--text3); font-size: 11px;
    cursor: pointer; padding: 6px 0; margin-top: 4px; width: 100%;
    text-align: center; transition: color 0.2s; font-family: inherit;
}
.chatbot-clear:hover { color: var(--red); }
.typing-dots span { animation: typingBounce 1.4s infinite; font-size: 20px; font-weight: 900; }
.typing-dots span:nth-child(2) { animation-delay: 0.2s; }
.typing-dots span:nth-child(3) { animation-delay: 0.4s; }
@keyframes typingBounce { 0%,60%,100%{transform:translateY(0)} 30%{transform:translateY(-4px)} }

@media (max-width: 480px) {
    .chatbot-window { width: calc(100vw - 32px); right: 16px; bottom: 90px; height: 420px; border-radius: 16px; }
    .chatbot-fab { bottom: 16px; right: 16px; width: 52px; height: 52px; }
    .chatbot-fab-icon { font-size: 24px; }
}