.hero { position: relative; min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: calc(var(--nav-height) + 40px) 24px 40px; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-gradient { position: absolute; inset: 0; background: radial-gradient(ellipse 60% 50% at 50% 45%, rgba(0, 229, 160, 0.08) 0%, transparent 70%), radial-gradient(ellipse 40% 60% at 80% 20%, rgba(99, 102, 241, 0.06) 0%, transparent 60%), radial-gradient(ellipse 50% 40% at 20% 80%, rgba(255, 184, 0, 0.04) 0%, transparent 60%); }
[data-theme="dark"] .hero-gradient { background: radial-gradient(ellipse 60% 50% at 50% 45%, rgba(0, 229, 160, 0.06) 0%, transparent 70%), radial-gradient(ellipse 40% 60% at 80% 20%, rgba(99, 102, 241, 0.04) 0%, transparent 60%); }
.hero-grid-overlay { position: absolute; inset: 0; background-image: linear-gradient(var(--border) 1px, transparent 1px), linear-gradient(90deg, var(--border) 1px, transparent 1px); background-size: 60px 60px; opacity: 0.3; mask-image: radial-gradient(ellipse 70% 60% at 50% 50%, black 20%, transparent 70%); -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 50%, black 20%, transparent 70%); }
.hero-orb { position: absolute; border-radius: 50%; filter: blur(80px); opacity: 0.4; animation: orbFloat 8s ease-in-out infinite; }
.hero-orb-1 { width: 300px; height: 300px; background: var(--accent); top: 15%; right: 10%; }
.hero-orb-2 { width: 200px; height: 200px; background: var(--indigo); bottom: 20%; left: 10%; animation-delay: -3s; }
.hero-orb-3 { width: 150px; height: 150px; background: var(--amber); top: 60%; right: 30%; animation-delay: -5s; opacity: 0.2; }
@keyframes orbFloat { 0%, 100% { transform: translate(0, 0); } 33% { transform: translate(20px, -30px); } 66% { transform: translate(-15px, 20px); } }
.hero-content { position: relative; z-index: 1; text-align: center; max-width: 800px; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; padding: 6px 16px; border-radius: var(--radius-full); background: var(--bg-card); border: 1px solid var(--bg-glass-border); backdrop-filter: blur(12px); font-size: 13px; color: var(--text-secondary); margin-bottom: 24px; }
.badge-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); animation: dotPulse 2s ease infinite; }
@keyframes dotPulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }
.hero-title { font-family: var(--font-display); font-size: clamp(36px, 7vw, 64px); font-weight: 700; line-height: 1.08; margin-bottom: 20px; letter-spacing: -0.02em; }
.hero-subtitle { font-size: clamp(16px, 2.5vw, 19px); color: var(--text-secondary); line-height: 1.7; margin-bottom: 36px; max-width: 640px; margin-left: auto; margin-right: auto; }
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 40px; }
.hero-trust { display: flex; align-items: center; justify-content: center; gap: 12px; font-size: 13px; color: var(--text-tertiary); }
.trust-avatars { display: flex; }
.trust-avatar { width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700; color: #0A0A0F; border: 2px solid var(--bg-primary); margin-left: -6px; }
.trust-avatar:first-child { margin-left: 0; }
.trust-sep { color: var(--border-strong); }
.hero-scroll-indicator { position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%); }
.scroll-line { width: 1px; height: 40px; background: var(--border-strong); position: relative; overflow: hidden; }
.scroll-line::after { content: ''; position: absolute; top: -100%; left: 0; width: 100%; height: 50%; background: var(--accent); animation: scrollLine 2s ease infinite; }
@keyframes scrollLine { 0% { top: -50%; } 100% { top: 150%; } }

.stats-bar { padding: 32px 24px; background: var(--bg-secondary); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.stats-container { max-width: var(--max-width); margin: 0 auto; display: flex; align-items: center; justify-content: center; gap: 32px; flex-wrap: wrap; }
.stat-item { text-align: center; min-width: 120px; }
.stat-number { font-family: var(--font-display); font-size: 28px; font-weight: 700; color: var(--accent); }
.stat-label { font-size: 12px; color: var(--text-tertiary); font-weight: 500; text-transform: uppercase; letter-spacing: 0.05em; margin-top: 2px; }
.stat-divider { width: 1px; height: 36px; background: var(--border); }
@media (max-width: 640px) { .stats-container { gap: 20px; } .stat-divider { display: none; } .stat-number { font-size: 22px; } }

.how-it-works { background: var(--bg-primary); }
.steps-grid { display: flex; align-items: flex-start; justify-content: center; gap: 12px; flex-wrap: wrap; }
.step-card { flex: 1; min-width: 240px; max-width: 320px; background: var(--bg-card); backdrop-filter: blur(12px); border: 1px solid var(--bg-glass-border); border-radius: var(--radius-xl); padding: 32px 28px; position: relative; }
.step-number { font-family: var(--font-display); font-size: 48px; font-weight: 700; color: var(--accent); opacity: 0.15; position: absolute; top: 16px; right: 20px; line-height: 1; }
.step-icon { width: 52px; height: 52px; border-radius: var(--radius-md); background: var(--accent-muted); color: var(--accent); display: flex; align-items: center; justify-content: center; margin-bottom: 20px; }
.step-title { font-family: var(--font-display); font-size: 18px; font-weight: 600; margin-bottom: 10px; }
.step-desc { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }
.step-connector { color: var(--text-tertiary); padding-top: 40px; flex-shrink: 0; }
@media (max-width: 900px) { .step-connector { display: none; } .steps-grid { flex-direction: column; align-items: center; } }

.roles-section { background: var(--bg-secondary); }
.roles-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.role-card { position: relative; border-radius: var(--radius-xl); overflow: hidden; }
.role-card-glow { position: absolute; inset: -1px; border-radius: var(--radius-xl); background: linear-gradient(135deg, var(--border-strong), transparent 50%); z-index: 0; }
.role-teacher .role-card-glow { background: linear-gradient(135deg, rgba(0,229,160,0.3), transparent 60%); }
.role-student .role-card-glow { background: linear-gradient(135deg, rgba(99,102,241,0.3), transparent 60%); }
.role-parent .role-card-glow { background: linear-gradient(135deg, rgba(255,107,107,0.3), transparent 60%); }
[data-theme="light"] .role-card-glow { opacity: 0.5; }
.role-card-inner { position: relative; z-index: 1; background: var(--bg-card-solid); border-radius: var(--radius-xl); padding: 36px 28px; display: flex; flex-direction: column; height: 100%; }
.role-icon-wrap { width: 52px; height: 52px; border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; margin-bottom: 20px; }
.role-teacher .role-icon-wrap { background: var(--accent-muted); color: var(--accent); }
.role-student .role-icon-wrap { background: rgba(99,102,241,0.12); color: var(--indigo); }
.role-parent .role-icon-wrap { background: rgba(255,107,107,0.12); color: var(--red); }
.role-name { font-family: var(--font-display); font-size: 22px; font-weight: 700; margin-bottom: 4px; }
.role-tagline { font-size: 14px; color: var(--text-tertiary); font-style: italic; margin-bottom: 20px; }
.role-features { flex: 1; margin-bottom: 24px; }
.role-features li { position: relative; padding-left: 20px; font-size: 14px; color: var(--text-secondary); line-height: 1.7; margin-bottom: 6px; }
.role-features li::before { content: ''; position: absolute; left: 0; top: 10px; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
@media (max-width: 900px) { .roles-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; } }

.features-section { background: var(--bg-primary); }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature-card { background: var(--bg-card); backdrop-filter: blur(8px); border: 1px solid var(--bg-glass-border); border-radius: var(--radius-lg); padding: 28px 24px; transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast); }
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--accent); }
.feature-icon { width: 40px; height: 40px; border-radius: var(--radius-sm); background: var(--accent-muted); color: var(--accent); display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.feature-title { font-family: var(--font-display); font-size: 16px; font-weight: 600; margin-bottom: 8px; }
.feature-desc { font-size: 14px; color: var(--text-secondary); line-height: 1.65; }
@media (max-width: 900px) { .features-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .features-grid { grid-template-columns: 1fr; } }

.guidance-section { background: var(--bg-secondary); }
.guidance-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.guidance-card { background: var(--bg-card); backdrop-filter: blur(8px); border: 1px solid var(--bg-glass-border); border-radius: var(--radius-lg); padding: 28px 24px; }
.guidance-step { font-size: 12px; font-weight: 600; color: var(--accent); text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 8px; }
.guidance-card h3 { font-family: var(--font-display); font-size: 18px; font-weight: 600; margin-bottom: 10px; }
.guidance-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }
@media (max-width: 640px) { .guidance-grid { grid-template-columns: 1fr; } }

.pricing-section { background: var(--bg-primary); }
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: start; }
.pricing-card { background: var(--bg-card); backdrop-filter: blur(12px); border: 1px solid var(--bg-glass-border); border-radius: var(--radius-xl); padding: 36px 28px; position: relative; transition: transform var(--transition-fast), box-shadow var(--transition-fast); }
.pricing-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.pricing-popular { border-color: var(--accent); box-shadow: var(--shadow-glow); transform: scale(1.03); }
.pricing-popular:hover { transform: scale(1.03) translateY(-4px); }
.pricing-badge { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); padding: 4px 16px; border-radius: var(--radius-full); background: var(--accent); color: #0A0A0F; font-size: 12px; font-weight: 700; white-space: nowrap; }
.pricing-header { text-align: center; margin-bottom: 28px; padding-bottom: 24px; border-bottom: 1px solid var(--border); }
.pricing-name { font-family: var(--font-display); font-size: 20px; font-weight: 600; margin-bottom: 12px; }
.pricing-price { display: flex; align-items: baseline; justify-content: center; gap: 4px; flex-wrap: wrap; }
.price-currency { font-size: 16px; color: var(--text-secondary); font-weight: 500; }
.price-amount { font-family: var(--font-display); font-size: 40px; font-weight: 700; color: var(--text-primary); }
.price-period { font-size: 14px; color: var(--text-tertiary); }
.pricing-trial { font-size: 13px; color: var(--accent); font-weight: 500; margin-top: 8px; }
.pricing-features { margin-bottom: 28px; }
.pricing-features li { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; color: var(--text-secondary); padding: 6px 0; }
.pricing-features li svg { flex-shrink: 0; color: var(--accent); margin-top: 2px; }
.pricing-disabled { color: var(--text-tertiary) !important; text-decoration: line-through; }
.pricing-disabled svg { color: var(--text-tertiary) !important; }
.pricing-note { text-align: center; font-size: 14px; color: var(--text-tertiary); margin-top: 32px; max-width: 560px; margin-left: auto; margin-right: auto; line-height: 1.7; }
.pricing-comparison { margin-top: 48px; max-width: 640px; margin-left: auto; margin-right: auto; background: var(--bg-card); border: 1px solid var(--bg-glass-border); border-radius: var(--radius-lg); padding: 32px; }
.pricing-comparison h3 { font-family: var(--font-display); font-size: 18px; font-weight: 600; margin-bottom: 16px; }
.pricing-comparison ol { padding-left: 20px; list-style: decimal; }
.pricing-comparison li { font-size: 14px; color: var(--text-secondary); line-height: 1.8; }
@media (max-width: 900px) { .pricing-grid { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; } .pricing-popular { transform: none; } .pricing-popular:hover { transform: translateY(-4px); } }

.why-section { background: var(--bg-secondary); }
.why-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.why-card { background: var(--bg-card); backdrop-filter: blur(8px); border: 1px solid var(--bg-glass-border); border-radius: var(--radius-lg); padding: 28px 24px; text-align: center; }
.why-number { font-family: var(--font-display); font-size: 36px; font-weight: 700; color: var(--accent); margin-bottom: 8px; }
.why-card h3 { font-family: var(--font-display); font-size: 16px; font-weight: 600; margin-bottom: 10px; }
.why-card p { font-size: 13px; color: var(--text-secondary); line-height: 1.7; }
@media (max-width: 900px) { .why-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .why-grid { grid-template-columns: 1fr; } }

.faq-section { background: var(--bg-primary); }
.faq-list { max-width: 720px; margin: 0 auto; display: flex; flex-direction: column; gap: 8px; }
.faq-item { background: var(--bg-card); border: 1px solid var(--bg-glass-border); border-radius: var(--radius-lg); overflow: hidden; transition: border-color var(--transition-fast); }
.faq-item.open { border-color: var(--accent); }
.faq-question { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 18px 20px; background: none; border: none; cursor: pointer; color: var(--text-primary); font-size: 15px; font-weight: 600; text-align: left; font-family: var(--font-body); }
.faq-chevron { flex-shrink: 0; color: var(--text-tertiary); transition: transform var(--transition-base); }
.faq-item.open .faq-chevron { transform: rotate(180deg); color: var(--accent); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; }
.faq-answer p { padding: 0 20px 18px; font-size: 14px; color: var(--text-secondary); line-height: 1.75; }

.cta-section { background: var(--bg-secondary); }
.cta-card { position: relative; border-radius: var(--radius-xl); overflow: hidden; background: var(--bg-card-solid); border: 1px solid var(--bg-glass-border); }
.cta-bg-pattern { position: absolute; inset: 0; background: radial-gradient(ellipse 50% 80% at 0% 50%, rgba(0,229,160,0.08) 0%, transparent 60%), radial-gradient(ellipse 50% 80% at 100% 50%, rgba(99,102,241,0.06) 0%, transparent 60%); }
.cta-content { position: relative; z-index: 1; padding: 64px 40px; text-align: center; max-width: 640px; margin: 0 auto; }
.cta-title { font-family: var(--font-display); font-size: clamp(26px, 4vw, 36px); font-weight: 700; margin-bottom: 16px; }
.cta-text { color: var(--text-secondary); font-size: 16px; line-height: 1.7; margin-bottom: 32px; }
.cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 16px; }
.cta-note { font-size: 13px; color: var(--text-tertiary); }

/* Pricing features - missing items */
.pricing-features .missing {
    opacity: 0.65;
    color: var(--text-tertiary);
}
.pricing-features .missing svg {
    color: var(--red);
    stroke: currentColor;
}