/* ===== RESET & VARIABLES ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --navy: #1a1f36;
    --navy-light: #242b45;
    --navy-lighter: #2d3555;
    --navy-card: #1e2540;
    --orange: #e8a838;
    --orange-hover: #f0b84d;
    --orange-dark: #d49520;
    --teal: #0f766e;
    --teal-dark: #0d6560;
    --teal-light: #14b8a6;
    --white: #ffffff;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #8b95a5;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --text-light: #c4cad6;
    --text-muted: #8b95a5;
    --border-dark: rgba(255,255,255,0.08);
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition: all 0.3s ease;
}

html { scroll-behavior: smooth; }

body {
    font-family: 'Plus Jakarta Sans', sans-serif;
    background: var(--gray-100);
    color: var(--navy);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* ===== NAVBAR ===== */
.navbar {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}
.nav-container {
    max-width: 1200px; margin: 0 auto; padding: 0 24px;
    display: flex; align-items: center; height: 64px; gap: 32px;
}
.nav-logo { display: flex; align-items: center; gap: 10px; text-decoration: none; flex-shrink: 0; }
.logo-icon {
    width: 36px; height: 36px; background: var(--teal); border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    font-weight: 800; font-size: 1.1rem; color: var(--white);
}
.logo-text { display: flex; flex-direction: column; }
.logo-name { font-weight: 800; font-size: 1.05rem; color: var(--navy); line-height: 1.2; font-family: 'Playfair Display', serif; letter-spacing: -0.3px; }
.logo-sub { font-size: 0.7rem; color: var(--gray-600); }
.nav-menu { display: flex; align-items: center; gap: 4px; list-style: none; flex: 1; }
.nav-link {
    text-decoration: none; color: var(--gray-700); font-size: 0.875rem;
    font-weight: 500; padding: 6px 14px; border-radius: 6px; transition: var(--transition);
}
.nav-link:hover { color: var(--teal); }
.nav-link.active { background: var(--teal); color: var(--white); font-weight: 600; }
.nav-right { display: flex; align-items: center; gap: 16px; flex-shrink: 0; }
.nav-notif { background: none; border: none; color: var(--gray-600); font-size: 1.1rem; cursor: pointer; padding: 6px; }
.nav-ai-btn {
    display: flex; align-items: center; gap: 8px;
    background: var(--teal); padding: 7px 16px 7px 8px;
    border-radius: 50px; text-decoration: none; transition: var(--transition);
}
.nav-ai-btn:hover { background: var(--teal-dark); transform: scale(1.02); }
.ai-avatar-nav {
    width: 28px; height: 28px; background: rgba(255,255,255,0.2); border-radius: 50%;
    display: flex; align-items: center; justify-content: center; color: var(--white); font-size: 0.8rem;
}
.nav-ai-btn span { color: var(--white); font-size: 0.82rem; font-weight: 600; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 5px; }
.nav-toggle span { width: 24px; height: 2.5px; background: var(--navy); border-radius: 2px; transition: var(--transition); }

/* ===== HERO ===== */
.hero {
    background: var(--white); padding: 120px 0 80px;
    position: relative; overflow: hidden;
}
.hero-pattern {
    position: absolute; inset: 0;
    background-image:
        radial-gradient(circle at 20% 80%, rgba(15,118,110,0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(232,168,56,0.03) 0%, transparent 50%);
}
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; position: relative; z-index: 1; }
.hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    background: rgba(15,118,110,0.08); border: 1px solid rgba(15,118,110,0.2);
    padding: 6px 16px; border-radius: 50px; font-size: 0.8rem; font-weight: 500; color: var(--teal); margin-bottom: 24px;
}
.badge-dot { width: 8px; height: 8px; background: var(--teal); border-radius: 50%; }
.hero h1 { font-size: 3rem; font-weight: 900; line-height: 1.15; color: var(--navy); margin-bottom: 20px; }
.text-orange { color: var(--teal); }
.hero-desc { font-size: 1rem; color: var(--gray-600); margin-bottom: 32px; max-width: 520px; line-height: 1.7; }
.hero-actions { display: flex; gap: 12px; margin-bottom: 48px; flex-wrap: wrap; }
.hero-stats { display: flex; align-items: center; gap: 32px; }
.stat-item { display: flex; flex-direction: column; }
.stat-num { font-size: 1.75rem; font-weight: 800; color: var(--navy); }
.stat-label { font-size: 0.8rem; color: var(--gray-600); }
.stat-divider { width: 1px; height: 40px; background: var(--gray-300); }
.hero-media { display: flex; justify-content: center; }
.hero .btn-outline-light { background: transparent; color: var(--navy); border: 1px solid var(--gray-300); }
.hero .btn-outline-light:hover { background: var(--gray-100); border-color: var(--teal); color: var(--teal); }
.play-btn { width: 64px; height: 64px; background: var(--teal); border: none; border-radius: 50%; display: flex; align-items: center; justify-content: center; color: var(--white); font-size: 1.25rem; cursor: pointer; transition: var(--transition); }
.play-btn:hover { transform: scale(1.1); background: var(--teal-dark); }

/* ===== BUTTONS ===== */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 24px; border-radius: 8px; font-size: 0.9rem; font-weight: 600; text-decoration: none; border: none; cursor: pointer; transition: var(--transition); font-family: inherit; }
.btn-orange { background: var(--teal); color: var(--white); }
.btn-orange:hover { background: var(--teal-dark); transform: translateY(-1px); }
.btn-outline-light { background: transparent; color: var(--navy); border: 1px solid var(--gray-300); }
.btn-outline-light:hover { background: var(--gray-100); border-color: var(--teal); color: var(--teal); }
.btn-outline-dark { background: transparent; color: var(--navy); border: 1px solid var(--gray-300); }
.btn-outline-dark:hover { border-color: var(--teal); background: var(--teal); color: var(--white); }
.btn-full { width: 100%; justify-content: center; }
.link-orange { color: var(--teal); text-decoration: none; font-weight: 600; font-size: 0.85rem; display: inline-flex; align-items: center; gap: 6px; transition: var(--transition); }
.link-orange:hover { color: var(--teal-dark); gap: 10px; }

/* ===== SECTION HEADER ===== */
.section-header { text-align: center; margin-bottom: 48px; }
.section-header.light h2 { color: var(--white); }
.section-header.light p { color: var(--text-muted); }
.section-tag { display: inline-block; font-size: 0.75rem; font-weight: 700; letter-spacing: 1.5px; color: var(--teal); text-transform: uppercase; margin-bottom: 8px; }
.section-header h2 { font-size: 2rem; font-weight: 800; color: var(--navy); margin-bottom: 10px; }
.section-header p { font-size: 0.95rem; color: var(--gray-600); max-width: 600px; margin: 0 auto; }
.section-cta { text-align: center; margin-top: 36px; }

/* ===== NILAI PAPPASANG ===== */
.nilai-section { padding: 80px 0; background: var(--white); }
.nilai-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.nilai-card { background: var(--gray-100); border: 1px solid var(--gray-200); border-radius: var(--radius); padding: 24px 16px; transition: var(--transition); }
.nilai-card:hover { border-color: var(--teal); box-shadow: var(--shadow); transform: translateY(-2px); }
.nilai-icon { width: 48px; height: 48px; border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 1.2rem; color: var(--white); margin-bottom: 14px; }
.nilai-card h4 { font-size: 0.95rem; font-weight: 700; color: var(--navy); margin-bottom: 4px; }
.nilai-card p { font-size: 0.8rem; color: var(--gray-600); }

/* ===== MODUL ===== */
.modul-section { padding: 80px 0; background: var(--gray-100); }
.modul-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 36px; }
.modul-header .section-tag { margin-bottom: 4px; }
.modul-header h2 { font-size: 2rem; font-weight: 800; color: var(--navy); margin-bottom: 6px; }
.modul-header p { font-size: 0.9rem; color: var(--gray-600); }
.modul-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.modul-card { background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--radius); padding: 24px; display: flex; gap: 16px; align-items: flex-start; transition: var(--transition); cursor: pointer; }
.modul-card:hover { border-color: var(--teal); box-shadow: var(--shadow); transform: translateY(-2px); }
.modul-icon { width: 48px; height: 48px; border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 1.1rem; color: var(--white); flex-shrink: 0; }
.modul-info h4 { font-size: 0.95rem; font-weight: 700; color: var(--navy); margin-bottom: 4px; }
.modul-info p { font-size: 0.82rem; color: var(--gray-600); margin-bottom: 10px; line-height: 1.5; }
.modul-meta { display: flex; gap: 16px; font-size: 0.75rem; color: var(--text-muted); }
.modul-meta span { display: flex; align-items: center; gap: 4px; }

/* ===== FITUR (DARK/HITAM) ===== */
.fitur-section { padding: 80px 0; background: var(--navy); }
.fitur-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.fitur-card { background: var(--navy-light); border: 1px solid var(--border-dark); border-radius: var(--radius); padding: 28px; transition: var(--transition); }
.fitur-card:hover { border-color: rgba(15,118,110,0.3); transform: translateY(-2px); }
.fitur-icon { width: 48px; height: 48px; border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 1.1rem; color: var(--white); margin-bottom: 16px; }
.fitur-card h4 { font-size: 1rem; font-weight: 700; color: var(--white); margin-bottom: 8px; }
.fitur-card p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.6; }

/* ===== VIDEO ===== */
.video-section { padding: 80px 0; background: var(--white); }
.video-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.video-card { background: var(--white); border-radius: var(--radius); overflow: hidden; border: 1px solid var(--gray-200); transition: var(--transition); }
.video-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.video-thumb { position: relative; height: 200px; overflow: hidden; }
.video-thumb img { width: 100%; height: 100%; object-fit: cover; }
.video-duration { position: absolute; bottom: 10px; right: 10px; background: rgba(0,0,0,0.7); color: var(--white); padding: 3px 10px; border-radius: 4px; font-size: 0.75rem; font-weight: 600; }
.video-tag { position: absolute; bottom: 10px; left: 10px; background: var(--teal); color: var(--white); padding: 3px 10px; border-radius: 4px; font-size: 0.7rem; font-weight: 600; }
.play-btn-sm { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 48px; height: 48px; background: var(--teal); border: none; border-radius: 50%; color: var(--white); font-size: 1rem; cursor: pointer; }
.video-body { padding: 20px; }
.video-body h4 { font-size: 0.95rem; font-weight: 700; color: var(--navy); margin-bottom: 6px; line-height: 1.4; }
.video-body p { font-size: 0.82rem; color: var(--gray-600); margin-bottom: 12px; line-height: 1.5; text-align: justify; }

/* ===== KUIS ===== */
.kuis-section { padding: 80px 0; background: var(--gray-100); }
.kuis-tabs { display: flex; gap: 4px; margin-bottom: 32px; border-bottom: 1px solid var(--gray-200); }
.tab-btn { padding: 10px 20px; background: none; border: none; font-size: 0.85rem; font-weight: 500; color: var(--gray-600); cursor: pointer; border-bottom: 2px solid transparent; transition: var(--transition); font-family: inherit; }
.tab-btn.active, .tab-btn:hover { color: var(--navy); border-bottom-color: var(--navy); font-weight: 600; }
.kuis-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.kuis-card { background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--radius); padding: 28px; }
.kuis-top { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 12px; }
.kuis-icon { width: 44px; height: 44px; border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 1.1rem; color: var(--white); }
.kuis-status { font-size: 0.75rem; font-weight: 600; padding: 4px 10px; border-radius: 50px; }
.kuis-status.belum { background: #fef2f2; color: #ef4444; }
.kuis-status.lulus { background: #f0fdf4; color: #22c55e; }
.kuis-type { display: inline-block; font-size: 0.72rem; font-weight: 600; color: #3b82f6; border: 1px solid #3b82f6; padding: 2px 8px; border-radius: 4px; margin-bottom: 10px; }
.kuis-card h4 { font-size: 1rem; font-weight: 700; color: var(--navy); margin-bottom: 6px; }
.kuis-card > p { font-size: 0.82rem; color: var(--gray-600); margin-bottom: 14px; line-height: 1.5; }
.kuis-meta { display: flex; gap: 16px; font-size: 0.78rem; color: var(--text-muted); margin-bottom: 14px; }
.kuis-meta span { display: flex; align-items: center; gap: 4px; }
.kuis-score { background: var(--gray-100); padding: 10px 14px; border-radius: 8px; margin-bottom: 16px; font-size: 0.82rem; color: var(--gray-600); }
.kuis-score strong { display: block; font-size: 1.25rem; color: var(--navy); margin-top: 2px; }

/* ===== FORUM ===== */
.forum-section { padding: 80px 0; background: var(--white); }
.forum-toolbar { display: flex; gap: 12px; margin-bottom: 32px; align-items: center; }
.forum-search { flex: 1; position: relative; }
.forum-search i { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); color: var(--gray-500); }
.forum-search input { width: 100%; padding: 12px 14px 12px 40px; border: 1px solid var(--gray-300); border-radius: 8px; font-size: 0.9rem; font-family: inherit; transition: var(--transition); }
.forum-search input:focus { outline: none; border-color: var(--teal); }
.forum-filter { padding: 12px 16px; border: 1px solid var(--gray-300); border-radius: 8px; font-size: 0.85rem; font-family: inherit; background: var(--white); cursor: pointer; }
.forum-list { display: flex; flex-direction: column; gap: 16px; }
.forum-item { background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--radius); padding: 24px; transition: var(--transition); }
.forum-item:hover { border-color: var(--teal); box-shadow: 0 2px 12px rgba(15,118,110,0.1); }
.forum-tags { display: flex; gap: 8px; margin-bottom: 10px; flex-wrap: wrap; }
.tag { display: inline-flex; align-items: center; gap: 4px; font-size: 0.72rem; font-weight: 600; padding: 3px 10px; border-radius: 4px; }
.tag-red { background: #fef2f2; color: #ef4444; }
.tag-orange { background: #fff7ed; color: var(--orange-dark); }
.tag-blue { background: #eff6ff; color: #3b82f6; }
.forum-item h4 { font-size: 1rem; font-weight: 700; color: var(--navy); margin-bottom: 6px; }
.forum-item > p { font-size: 0.85rem; color: var(--gray-600); margin-bottom: 12px; line-height: 1.6; }
.forum-meta { display: flex; gap: 16px; font-size: 0.78rem; color: var(--text-muted); flex-wrap: wrap; }
.forum-meta span { display: flex; align-items: center; gap: 4px; }

/* ===== BERITA ===== */
.berita-section { padding: 80px 0; background: var(--gray-100); }
.berita-featured { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; margin-bottom: 40px; background: var(--white); border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--gray-200); }
.berita-img img { width: 100%; height: 100%; object-fit: cover; min-height: 300px; }
.berita-info { padding: 32px; display: flex; flex-direction: column; justify-content: center; }
.berita-cat { display: inline-block; font-size: 0.72rem; font-weight: 600; color: #3b82f6; border: 1px solid #3b82f6; padding: 3px 10px; border-radius: 4px; margin-bottom: 12px; width: fit-content; }
.berita-info h3 { font-size: 1.4rem; font-weight: 800; color: var(--navy); margin-bottom: 12px; line-height: 1.3; }
.berita-info p { font-size: 0.9rem; color: var(--gray-600); margin-bottom: 16px; line-height: 1.6; }
.berita-meta { display: flex; gap: 16px; font-size: 0.8rem; color: var(--text-muted); }
.berita-meta span { display: flex; align-items: center; gap: 5px; }
.berita-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.berita-card { background: var(--white); border-radius: var(--radius); overflow: hidden; border: 1px solid var(--gray-200); transition: var(--transition); }
.berita-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.berita-card-img { height: 180px; overflow: hidden; }
.berita-card-img img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
.berita-card:hover .berita-card-img img { transform: scale(1.05); }
.berita-card-body { padding: 20px; }
.berita-card-body h4 { font-size: 0.95rem; font-weight: 700; color: var(--navy); margin-bottom: 12px; line-height: 1.4; }

/* ===== CTA (HITAM) ===== */
.cta-section { padding: 80px 0; background: var(--gray-100); }
.cta-card {
    background: var(--navy); border-radius: var(--radius-xl); padding: 60px;
    text-align: center; position: relative; overflow: hidden; border: 1px solid var(--border-dark);
}
.cta-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(15,118,110,0.1); border: 1px solid rgba(15,118,110,0.3); padding: 6px 16px; border-radius: 50px; font-size: 0.8rem; font-weight: 500; color: var(--teal); margin-bottom: 20px; }
.cta-card h2 { font-size: 2.25rem; font-weight: 800; color: var(--white); margin-bottom: 16px; max-width: 600px; margin-left: auto; margin-right: auto; }
.cta-card p { font-size: 0.95rem; color: var(--text-muted); margin-bottom: 32px; max-width: 550px; margin-left: auto; margin-right: auto; }
.cta-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ===== FOOTER (HITAM) ===== */
.footer { background: var(--navy); padding: 60px 0 30px; border-top: 1px solid var(--border-dark); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; margin-bottom: 40px; }
.footer-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-brand p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.7; max-width: 360px; }
.footer-links h4 { font-size: 0.9rem; font-weight: 700; color: var(--white); margin-bottom: 16px; }
.footer-links ul { list-style: none; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: var(--text-muted); text-decoration: none; font-size: 0.85rem; transition: var(--transition); }
.footer-links a:hover { color: var(--white); }
.footer-bottom { border-top: 1px solid var(--border-dark); padding-top: 24px; text-align: center; }
.footer-bottom p { font-size: 0.8rem; color: var(--text-muted); }

/* ===== AI CHAT SECTION ===== */
.ai-section { padding: 80px 0; background: var(--white); }
.ai-chat-container { display: grid; grid-template-columns: 260px 1fr; gap: 0; background: var(--white); border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--gray-200); box-shadow: var(--shadow-lg); min-height: 560px; }
.ai-chat-sidebar { background: var(--navy); padding: 28px 20px; display: flex; flex-direction: column; gap: 24px; }
.ai-profile { text-align: center; }
.ai-avatar-large { width: 64px; height: 64px; background: var(--teal); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; color: var(--white); margin: 0 auto 12px; }
.ai-profile h4 { color: var(--white); font-size: 1rem; font-weight: 700; }
.ai-profile p { color: var(--text-muted); font-size: 0.78rem; }
.ai-capabilities h5 { color: var(--text-light); font-size: 0.78rem; font-weight: 600; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 12px; }
.ai-capabilities ul { list-style: none; }
.ai-capabilities li { color: var(--text-muted); font-size: 0.8rem; padding: 6px 0; display: flex; align-items: center; gap: 8px; }
.ai-capabilities li i { color: var(--teal); font-size: 0.7rem; }
.ai-chat-main { display: flex; flex-direction: column; background: var(--gray-100); }
.chat-messages { flex: 1; padding: 24px; overflow-y: auto; max-height: 400px; display: flex; flex-direction: column; gap: 16px; }
.chat-msg { display: flex; gap: 10px; max-width: 85%; }
.chat-msg.ai { align-self: flex-start; }
.chat-msg.user { align-self: flex-end; flex-direction: row-reverse; }
.msg-avatar { width: 34px; height: 34px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 0.85rem; flex-shrink: 0; }
.chat-msg.ai .msg-avatar { background: var(--teal); color: var(--white); }
.chat-msg.user .msg-avatar { background: var(--navy); color: var(--white); }
.msg-bubble { background: var(--white); padding: 14px 18px; border-radius: 12px; border: 1px solid var(--gray-200); box-shadow: 0 1px 4px rgba(0,0,0,0.04); }
.chat-msg.user .msg-bubble { background: var(--navy); color: var(--white); border-color: var(--navy); }
.msg-bubble p { font-size: 0.88rem; line-height: 1.6; margin-bottom: 6px; }
.msg-bubble p:last-child { margin-bottom: 0; }
.msg-bubble ul { list-style: none; margin: 8px 0; padding: 0; }
.msg-bubble li { font-size: 0.84rem; padding: 3px 0; }
.msg-time { font-size: 0.7rem; color: var(--text-muted); margin-top: 4px; display: block; }
.chat-suggestions { padding: 0 24px 12px; display: flex; gap: 8px; flex-wrap: wrap; }
.suggest-btn { background: var(--white); border: 1px solid var(--gray-300); padding: 7px 14px; border-radius: 50px; font-size: 0.78rem; font-weight: 500; color: var(--navy); cursor: pointer; font-family: inherit; transition: var(--transition); }
.suggest-btn:hover { border-color: var(--teal); color: var(--teal); background: rgba(15,118,110,0.05); }
.chat-input-form { padding: 16px 24px 20px; border-top: 1px solid var(--gray-200); background: var(--white); }
.chat-input-wrapper { display: flex; gap: 10px; align-items: center; }
.chat-input-wrapper input { flex: 1; padding: 13px 18px; border: 1px solid var(--gray-300); border-radius: 50px; font-size: 0.9rem; font-family: inherit; transition: var(--transition); }
.chat-input-wrapper input:focus { outline: none; border-color: var(--teal); box-shadow: 0 0 0 3px rgba(15,118,110,0.1); }
.send-btn { width: 44px; height: 44px; background: var(--teal); border: none; border-radius: 50%; color: var(--white); font-size: 1rem; cursor: pointer; transition: var(--transition); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.send-btn:hover { background: var(--teal-dark); transform: scale(1.05); }
.send-btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }
.chat-disclaimer { font-size: 0.72rem; color: var(--text-muted); text-align: center; margin-top: 10px; }
.typing-indicator { display: flex; gap: 4px; padding: 8px 0; }
.typing-indicator span { width: 8px; height: 8px; background: var(--gray-400); border-radius: 50%; animation: typing 1.4s infinite; }
.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }
@keyframes typing { 0%, 60%, 100% { transform: translateY(0); opacity: 0.4; } 30% { transform: translateY(-6px); opacity: 1; } }

/* ===== RESPONSIVE — TABLET ===== */
@media (max-width: 1024px) {
    .hero-grid { grid-template-columns: 1fr; gap: 40px; }
    .hero h1 { font-size: 2.5rem; }
    .hero-media { display: none; }
    .nilai-grid { grid-template-columns: repeat(3, 1fr); }
    .fitur-grid { grid-template-columns: repeat(2, 1fr); }
    .video-grid, .berita-grid { grid-template-columns: repeat(2, 1fr); }
    .berita-featured { grid-template-columns: 1fr; }
    .berita-img img { min-height: 200px; max-height: 250px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    .nav-ai-btn span { display: none; }
    .nav-ai-btn { padding: 7px; border-radius: 50%; }
}

/* ===== RESPONSIVE — MOBILE ===== */
@media (max-width: 768px) {
    .nav-menu { position: fixed; top: 64px; left: 0; right: 0; background: var(--white); flex-direction: column; padding: 16px; gap: 4px; border-bottom: 1px solid var(--gray-200); transform: translateY(-120%); transition: var(--transition); z-index: 999; box-shadow: 0 4px 12px rgba(0,0,0,0.08); }
    .nav-menu.active { transform: translateY(0); }
    .nav-toggle { display: flex; }
    .nav-right .nav-notif { display: none; }
    .nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
    .nav-toggle.active span:nth-child(2) { opacity: 0; }
    .nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
    .hero { padding: 100px 0 60px; }
    .hero h1 { font-size: 2rem; }
    .hero-stats { flex-wrap: wrap; gap: 20px; }
    .stat-divider { display: none; }
    .section-header h2 { font-size: 1.6rem; }
    .nilai-grid { grid-template-columns: repeat(2, 1fr); }
    .modul-header { flex-direction: column; gap: 16px; }
    .modul-grid, .kuis-grid { grid-template-columns: 1fr; }
    .fitur-grid, .video-grid, .berita-grid { grid-template-columns: 1fr; }
    .forum-toolbar { flex-direction: column; }
    .forum-filter { width: 100%; }
    .cta-card { padding: 40px 24px; }
    .cta-card h2 { font-size: 1.6rem; }
    .footer-grid { grid-template-columns: 1fr; gap: 24px; }
    .kuis-tabs { overflow-x: auto; flex-wrap: nowrap; }
    .tab-btn { white-space: nowrap; }
    .ai-chat-container { grid-template-columns: 1fr; }
    .ai-chat-sidebar { display: none; }
    .chat-messages { max-height: 350px; }
    .chat-msg { max-width: 95%; }
}

@media (max-width: 480px) {
    .hero h1 { font-size: 1.6rem; }
    .hero-actions { flex-direction: column; }
    .hero-actions .btn { width: 100%; justify-content: center; }
    .nilai-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
    .modul-card { flex-direction: column; }
}