/* ============================================
   AHFIS 9.0 - Affordable Housing Finance & Investment Summit
   Production Stylesheet
   Colors: Navy #293047 | Blue #42609A | Red #ED3237
   ============================================ */

:root {
    --ah-navy: #293047;
    --ah-blue: #42609A;
    --ah-red: #ED3237;
    --ah-white: #FEFEFE;
    --ah-g50: #F9FAFB;
    --ah-g100: #F3F4F6;
    --ah-g200: #E5E7EB;
    --ah-g300: #D1D5DB;
    --ah-g400: #9CA3AF;
    --ah-g500: #6B7280;
    --ah-g600: #4B5563;
    --ah-g700: #374151;
    --ah-g800: #1F2937;
    --shadow-sm: 0 1px 2px rgba(41,48,71,0.05);
    --shadow-md: 0 4px 6px rgba(41,48,71,0.07);
    --shadow-lg: 0 10px 25px rgba(41,48,71,0.1);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--ah-navy); line-height: 1.6; background: var(--ah-white);
    -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--ah-blue); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--ah-navy); }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.container-sm { max-width: 800px; margin: 0 auto; padding: 0 24px; }
.text-center { text-align: center; }

/* Buttons */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 12px 24px; border-radius: var(--radius-md); font-weight: 600; font-size: 14px;
    cursor: pointer; border: none; transition: var(--transition); text-decoration: none;
    line-height: 1.4; white-space: nowrap;
}
.btn-primary { background: var(--ah-blue); color: white; }
.btn-primary:hover { background: var(--ah-navy); color: white; transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-outline { background: transparent; color: var(--ah-blue); border: 1.5px solid var(--ah-blue); }
.btn-outline:hover { background: rgba(66,96,154,0.08); }
.btn-red { background: var(--ah-red); color: white; }
.btn-red:hover { background: #c62828; color: white; transform: translateY(-1px); }
.btn-white { background: white; color: var(--ah-navy); }
.btn-white:hover { background: var(--ah-g100); }
.btn-sm { padding: 8px 16px; font-size: 13px; }
.btn-lg { padding: 14px 32px; font-size: 15px; }
.btn-block { width: 100%; }

/* Navigation */
.navbar {
    position: sticky; top: 0; z-index: 1000;
    background: rgba(254,254,254,0.95); backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--ah-g200);
}
.navbar-inner { display: flex; align-items: center; justify-content: space-between; padding: 14px 0; }
.logo {
    display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px;
    color: var(--ah-navy); text-decoration: none;
}
.logo-icon {
    width: 38px; 
    height: 38px; 
    flex-shrink: 0;
    background: url('../images/logo.png') no-repeat center/contain;
}
.logo span { opacity: 0.5; font-weight: 400; margin-left: 4px; }

.nav-links { display: flex; align-items: center; gap: 4px; list-style: none; }
.nav-links a {
    padding: 8px 14px; border-radius: var(--radius-sm); font-size: 14px; font-weight: 500;
    color: var(--ah-g600); text-decoration: none; transition: var(--transition);
}
.nav-links a:hover, .nav-links a.active { color: var(--ah-blue); background: rgba(66,96,154,0.08); }
.nav-links .btn-sm { margin-left: 8px; }
.mobile-toggle { display: none; background: none; border: none; font-size: 24px; cursor: pointer; color: var(--ah-navy); padding: 4px; }

/* Hero */
.hero {
    background: linear-gradient(135deg, var(--ah-navy) 0%, #1a1f2e 60%, var(--ah-navy) 100%);
    color: white; padding: 80px 0 64px; position: relative; overflow: hidden;
}
.hero::before {
    content: ''; position: absolute; top: -30%; right: -10%; width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(66,96,154,0.18) 0%, transparent 70%); pointer-events: none;
}
.hero::after {
    content: ''; position: absolute; bottom: -20%; left: -10%; width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(237,50,55,0.08) 0%, transparent 70%); pointer-events: none;
}
.hero .container { position: relative; z-index: 1; text-align: center; }
.hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    background: rgba(237,50,55,0.12); color: var(--ah-red);
    padding: 6px 16px; border-radius: 20px; font-size: 12px; font-weight: 600;
    border: 1px solid rgba(237,50,55,0.2); margin-bottom: 20px;
}
.hero-badge::before { content: ''; width: 6px; height: 6px; background: var(--ah-red); border-radius: 50%; animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }
.hero h1 { font-size: 48px; font-weight: 800; line-height: 1.1; margin-bottom: 16px; max-width: 800px; margin-left: auto; margin-right: auto; }
.hero h1 .accent { color: var(--ah-red); }
.hero-sub { font-size: 18px; opacity: 0.85; max-width: 560px; margin-bottom: 32px; line-height: 1.6; margin-left: auto; margin-right: auto; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 48px; justify-content: center; }
.countdown { display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; }
.countdown-box {
    background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-lg); padding: 16px 22px; min-width: 80px; text-align: center; backdrop-filter: blur(4px);
}
.countdown-box .num { font-size: 36px; font-weight: 700; display: block; line-height: 1; font-variant-numeric: tabular-nums; }
.countdown-box .lbl { font-size: 11px; opacity: 0.6; text-transform: uppercase; letter-spacing: 0.8px; margin-top: 4px; display: block; }

/* Sections */
.section { padding: 72px 0; }
.section-alt { background: var(--ah-g50); }
.section-title { font-size: 32px; font-weight: 700; margin-bottom: 10px; text-align: center; color: var(--ah-navy); }
.section-sub { text-align: center; color: var(--ah-g500); margin-bottom: 48px; font-size: 16px; max-width: 600px; margin-left: auto; margin-right: auto; }

/* Stats */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.stat-card { text-align: center; padding: 28px 20px; background: white; border-radius: var(--radius-lg); border: 1px solid var(--ah-g200); transition: var(--transition); }
.stat-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--ah-blue); }
.stat-num { font-size: 40px; font-weight: 800; color: var(--ah-blue); line-height: 1; }
.stat-lbl { font-size: 14px; color: var(--ah-g500); margin-top: 8px; font-weight: 500; }

/* Theme Banner */
.theme-banner { background: linear-gradient(135deg, var(--ah-navy), #1e2438); color: white; padding: 56px 0; text-align: center; }
.theme-label { font-size: 12px; text-transform: uppercase; letter-spacing: 2px; opacity: 0.6; margin-bottom: 8px; font-weight: 600; }
.theme-banner h2 { font-size: 28px; font-weight: 700; margin-bottom: 8px; }
.theme-banner p { opacity: 0.75; font-size: 16px; }

/* Feature Cards */
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
.feature-card { background: white; border: 1px solid var(--ah-g200); border-radius: var(--radius-lg); padding: 28px; transition: var(--transition); }
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--ah-blue); }
.feature-icon { width: 48px; height: 48px; background: rgba(66,96,154,0.08); border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; margin-bottom: 16px; color: var(--ah-blue); font-size: 22px; }
.feature-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; color: var(--ah-navy); }
.feature-card p { font-size: 14px; color: var(--ah-g500); line-height: 1.6; }

/* Special Feature */
.special-feature { background: linear-gradient(135deg, var(--ah-navy), var(--ah-blue)); color: white; padding: 56px; border-radius: var(--radius-xl); text-align: center; position: relative; overflow: hidden; }
.special-feature::before { content: ''; position: absolute; top: -50%; right: -20%; width: 400px; height: 400px; background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 70%); }
.special-feature h3 { font-size: 26px; font-weight: 700; margin-bottom: 12px; position: relative; }
.special-feature p { opacity: 0.85; max-width: 560px; margin: 0 auto 24px; font-size: 16px; position: relative; }

/* Cards Grid */
.cards-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 20px; }
.card { background: white; border: 1px solid var(--ah-g200); border-radius: var(--radius-lg); padding: 24px; text-align: center; transition: var(--transition); }
.card:hover { border-color: var(--ah-blue); box-shadow: var(--shadow-md); transform: translateY(-2px); }
.card-avatar { width: 80px; height: 80px; background: var(--ah-g100); border-radius: 50%; margin: 0 auto 16px; display: flex; align-items: center; justify-content: center; color: var(--ah-g300); font-size: 32px; overflow: hidden; }
.card-avatar img { width: 100%; height: 100%; object-fit: cover; }
.card h4 { font-size: 15px; font-weight: 700; margin-bottom: 4px; color: var(--ah-navy); }
.card p { font-size: 13px; color: var(--ah-g500); line-height: 1.5; }
.card-tag { display: inline-block; margin-top: 12px; padding: 4px 12px; border-radius: 20px; font-size: 11px; font-weight: 600; background: rgba(66,96,154,0.08); color: var(--ah-blue); }
.card-tag.platinum { background: rgba(41,48,71,0.08); color: var(--ah-navy); }
.card-tag.gold { background: rgba(217,119,6,0.1); color: #d97706; }
.card-tag.silver { background: rgba(107,114,128,0.1); color: var(--ah-g500); }
.card-tag.available { background: rgba(237,50,55,0.08); color: var(--ah-red); }

/* Blog */
.blog-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 24px; }
.blog-card { background: white; border: 1px solid var(--ah-g200); border-radius: var(--radius-lg); overflow: hidden; transition: var(--transition); display: flex; flex-direction: column; }
.blog-card:hover { border-color: var(--ah-blue); box-shadow: var(--shadow-md); }
.blog-img { height: 180px; background: linear-gradient(135deg, var(--ah-g200), var(--ah-g100)); display: flex; align-items: center; justify-content: center; color: var(--ah-g300); font-size: 48px; position: relative; overflow: hidden; }
.blog-img img { width: 100%; height: 100%; object-fit: cover; }
.blog-img .placeholder-label { position: absolute; bottom: 12px; left: 16px; font-size: 11px; color: var(--ah-g400); background: rgba(255,255,255,0.9); padding: 2px 8px; border-radius: 4px; }
.blog-body { padding: 20px; flex: 1; display: flex; flex-direction: column; }
.blog-date { font-size: 12px; color: var(--ah-g400); margin-bottom: 8px; font-weight: 500; }
.blog-card h4 { font-size: 16px; font-weight: 700; margin-bottom: 8px; line-height: 1.35; color: var(--ah-navy); }
.blog-card p { font-size: 14px; color: var(--ah-g500); line-height: 1.6; flex: 1; }
.blog-readmore { margin-top: 14px; font-size: 13px; font-weight: 600; color: var(--ah-blue); }

/* Packages */
.packages-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 16px; align-items: start; }
.package-card { background: white; border: 2px solid var(--ah-g200); border-radius: var(--radius-lg); padding: 28px 20px; text-align: center; position: relative; transition: var(--transition); }
.package-card:hover { border-color: var(--ah-blue); transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.package-card.featured { border-color: var(--ah-red); }
.package-card.featured::before { content: 'Popular'; position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: var(--ah-red); color: white; padding: 4px 16px; border-radius: 20px; font-size: 11px; font-weight: 700; letter-spacing: 0.5px; }
.package-tier { font-size: 12px; text-transform: uppercase; letter-spacing: 1.5px; color: var(--ah-g500); margin-bottom: 8px; font-weight: 600; }
.package-price { font-size: 32px; font-weight: 800; color: var(--ah-navy); line-height: 1; margin-bottom: 4px; }
.package-price span { font-size: 14px; font-weight: 400; color: var(--ah-g500); }
.package-list { list-style: none; text-align: left; margin: 20px 0; padding: 0; }
.package-list li { padding: 6px 0; font-size: 13px; color: var(--ah-g600); border-bottom: 1px solid var(--ah-g100); display: flex; gap: 8px; align-items: flex-start; }
.package-list li::before { content: '✓'; color: var(--ah-blue); font-weight: 700; flex-shrink: 0; }
.delegate-box { background: var(--ah-g50); padding: 36px; border-radius: var(--radius-lg); text-align: center; margin-top: 48px; border: 1px solid var(--ah-g200); }
.delegate-box .price { font-size: 40px; font-weight: 800; color: var(--ah-navy); }
.delegate-box .price span { font-size: 16px; font-weight: 400; color: var(--ah-g500); }

/* Pavilion */
.pavilion-search { max-width: 420px; margin: 0 auto 24px; position: relative; }
.pavilion-search input { width: 100%; padding: 12px 16px 12px 44px; border: 1.5px solid var(--ah-g300); border-radius: var(--radius-lg); font-size: 15px; outline: none; transition: var(--transition); background: white; }
.pavilion-search input:focus { border-color: var(--ah-blue); box-shadow: 0 0 0 3px rgba(66,96,154,0.1); }
.pavilion-search .search-icon { position: absolute; left: 16px; top: 50%; transform: translateY(-50%); color: var(--ah-g400); font-size: 16px; }
.pavilion-filters { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; margin-bottom: 32px; }
.filter-btn { padding: 8px 18px; border-radius: 20px; border: 1.5px solid var(--ah-g300); background: white; font-size: 13px; font-weight: 500; cursor: pointer; transition: var(--transition); color: var(--ah-g600); }
.filter-btn:hover { border-color: var(--ah-blue); color: var(--ah-blue); }
.filter-btn.active { background: var(--ah-blue); color: white; border-color: var(--ah-blue); }
.exhibitor-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; }
.exhibitor-card { background: white; border: 1.5px solid var(--ah-g200); border-radius: var(--radius-lg); padding: 24px; transition: var(--transition); display: flex; flex-direction: column; }
.exhibitor-card:hover { border-color: var(--ah-blue); box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.exhibitor-header { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; }
.exhibitor-logo { width: 52px; height: 52px; background: var(--ah-g100); border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; color: var(--ah-g400); font-size: 20px; flex-shrink: 0; overflow: hidden; }
.exhibitor-logo img { width: 100%; height: 100%; object-fit: cover; }
.exhibitor-info h4 { font-size: 15px; font-weight: 700; margin-bottom: 3px; color: var(--ah-navy); }
.exhibitor-info .sector { font-size: 12px; color: var(--ah-blue); font-weight: 600; }
.exhibitor-card p { font-size: 13px; color: var(--ah-g500); line-height: 1.6; margin-bottom: 16px; flex: 1; }
.exhibitor-links { display: flex; gap: 12px; flex-wrap: wrap; }
.exhibitor-links a { font-size: 13px; font-weight: 600; color: var(--ah-blue); }
.exhibitor-links a:hover { text-decoration: underline; }
.exhibitor-booth { font-size: 11px; color: var(--ah-g400); margin-top: 10px; padding-top: 10px; border-top: 1px solid var(--ah-g100); }

/* Archive */
.archive-list { display: flex; flex-direction: column; gap: 16px; }
.archive-item { display: flex; align-items: center; gap: 24px; background: white; border: 1px solid var(--ah-g200); border-radius: var(--radius-lg); padding: 24px; transition: var(--transition); }
.archive-item:hover { border-color: var(--ah-blue); box-shadow: var(--shadow-sm); }
.archive-year { font-size: 32px; font-weight: 800; color: var(--ah-blue); min-width: 80px; text-align: center; flex-shrink: 0; }
.archive-content { flex: 1; }
.archive-content h4 { font-size: 17px; font-weight: 700; margin-bottom: 4px; color: var(--ah-navy); }
.archive-content p { font-size: 14px; color: var(--ah-g500); }
.archive-tags { display: flex; gap: 6px; margin-top: 8px; flex-wrap: wrap; }
.archive-tags span { font-size: 11px; padding: 3px 10px; background: var(--ah-g100); border-radius: 20px; color: var(--ah-g500); font-weight: 500; }

/* Forms */
.form-card { max-width: 640px; margin: 0 auto; background: white; border: 1px solid var(--ah-g200); border-radius: var(--radius-xl); padding: 40px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; color: var(--ah-g700); }
.form-group label .required { color: var(--ah-red); }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 12px 14px; border: 1.5px solid var(--ah-g300); border-radius: var(--radius-md); font-size: 15px; outline: none; transition: var(--transition); font-family: inherit; background: white; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--ah-blue); box-shadow: 0 0 0 3px rgba(66,96,154,0.08); }
.form-group textarea { min-height: 120px; resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-success { background: rgba(34,197,94,0.08); color: #166534; padding: 16px 20px; border-radius: var(--radius-md); border: 1px solid rgba(34,197,94,0.2); margin-bottom: 20px; font-size: 14px; font-weight: 500; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 40px; max-width: 700px; margin-left: auto; margin-right: auto; }
.contact-card { text-align: center; padding: 28px 20px; background: white; border: 1px solid var(--ah-g200); border-radius: var(--radius-lg); }
.contact-card .icon { font-size: 28px; margin-bottom: 10px; }
.contact-card h5 { font-size: 14px; font-weight: 700; margin-bottom: 6px; color: var(--ah-navy); }
.contact-card p { font-size: 13px; color: var(--ah-g500); line-height: 1.6; }

/* Footer */
.footer { background: var(--ah-navy); color: white; padding: 56px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1fr; gap: 30px; margin-bottom: 40px; }
.footer-about p { font-size: 14px; color: rgba(255,255,255,0.65); line-height: 1.7; margin-top: 12px; }
.footer h5 { font-size: 13px; font-weight: 700; margin-bottom: 16px; opacity: 0.9; text-transform: uppercase; letter-spacing: 0.5px; }
.footer a, .footer p { display: block; font-size: 14px; color: rgba(255,255,255,0.6); text-decoration: none; margin-bottom: 10px; transition: var(--transition); }
.footer a:hover { color: white; }
.footer-bottom { text-align: center; padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.1); }
.footer-bottom p { font-size: 13px; opacity: 0.5; margin-bottom: 4px; }

/* Page Header */
.page-header { background: linear-gradient(135deg, var(--ah-navy) 0%, #1a1f2e 100%); color: white; padding: 64px 0 48px; text-align: center; }
.page-header h1 { font-size: 40px; font-weight: 800; margin-bottom: 10px; }
.page-header p { font-size: 17px; opacity: 0.8; max-width: 600px; margin: 0 auto; }
.breadcrumbs { padding: 16px 0; background: var(--ah-g50); border-bottom: 1px solid var(--ah-g200); }
.breadcrumbs a { font-size: 13px; color: var(--ah-g500); }
.breadcrumbs a:hover { color: var(--ah-blue); }
.breadcrumbs span { font-size: 13px; color: var(--ah-g400); margin: 0 6px; }
.breadcrumbs .current { font-size: 13px; color: var(--ah-navy); font-weight: 500; }

/* Content */
.content-block { max-width: 760px; margin: 0 auto; }
.content-block h2 { font-size: 24px; font-weight: 700; margin: 36px 0 16px; color: var(--ah-navy); }
.content-block h3 { font-size: 19px; font-weight: 700; margin: 28px 0 12px; color: var(--ah-navy); }
.content-block p { font-size: 16px; line-height: 1.8; color: var(--ah-g600); margin-bottom: 16px; }
.content-block ul { padding-left: 24px; margin-bottom: 20px; }
.content-block ul li { font-size: 15px; color: var(--ah-g600); margin-bottom: 8px; line-height: 1.6; }
.content-block ul li::marker { color: var(--ah-blue); }
.info-box { background: var(--ah-g50); padding: 28px; border-radius: var(--radius-lg); margin: 28px 0; border-left: 4px solid var(--ah-blue); }
.info-box h3 { margin-top: 0; font-size: 17px; }

/* Gallery */
.gallery-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.gallery-item { aspect-ratio: 4/3; background: linear-gradient(135deg, var(--ah-g200), var(--ah-g100)); border-radius: var(--radius-lg); display: flex; flex-direction: column; align-items: center; justify-content: center; color: var(--ah-g400); font-size: 14px; border: 2px dashed var(--ah-g300); position: relative; overflow: hidden; }
.gallery-item .placeholder-label { position: absolute; bottom: 12px; left: 50%; transform: translateX(-50%); background: white; padding: 4px 12px; border-radius: 4px; font-size: 11px; color: var(--ah-g500); font-weight: 500; white-space: nowrap; }

/* Video */
.video-wrapper { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; border-radius: var(--radius-lg); background: var(--ah-g100); }
.video-wrapper iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0; }
.video-placeholder { aspect-ratio: 16/9; background: linear-gradient(135deg, var(--ah-navy), var(--ah-blue)); border-radius: var(--radius-lg); display: flex; flex-direction: column; align-items: center; justify-content: center; color: white; text-align: center; }
.video-placeholder .play-btn { width: 64px; height: 64px; background: rgba(255,255,255,0.15); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 24px; margin-bottom: 16px; backdrop-filter: blur(4px); border: 2px solid rgba(255,255,255,0.3); }

/* Responsive */
@media (max-width: 1024px) {
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
    .mobile-toggle { display: block; }
    .nav-links { display: none; position: absolute; top: 100%; left: 0; right: 0; background: rgba(254,254,254,0.98); backdrop-filter: blur(12px); border-bottom: 1px solid var(--ah-g200); padding: 12px 24px; flex-direction: column; align-items: stretch; gap: 4px; box-shadow: var(--shadow-lg); }
    .nav-links.open { display: flex; }
    .nav-links a { padding: 12px; border-radius: var(--radius-sm); }
    .nav-links .btn-sm { margin-left: 0; margin-top: 8px; }
    .hero { padding: 56px 0 48px; }
    .hero h1 { font-size: 32px; }
    .hero-sub { font-size: 16px; }
    .countdown-box { padding: 12px 16px; min-width: 64px; }
    .countdown-box .num { font-size: 28px; }
    .section { padding: 48px 0; }
    .section-title { font-size: 26px; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .stat-num { font-size: 32px; }
    .form-row { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .archive-item { flex-direction: column; text-align: center; }
    .archive-year { min-width: auto; }
    .page-header h1 { font-size: 30px; }
    .special-feature { padding: 36px 24px; }
}
@media (max-width: 480px) {
    .hero h1 { font-size: 26px; }
    .countdown { gap: 8px; }
    .countdown-box { padding: 10px 12px; min-width: 56px; }
    .countdown-box .num { font-size: 24px; }
    .packages-grid { grid-template-columns: 1fr; }
}

/* Animations */
@keyframes fadeInUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
.animate-in { animation: fadeInUp 0.5s ease forwards; }