/* HealoAI Official Website - Premium SaaS Style */
:root {
    --primary: #2B6BF3;
    --primary-dark: #1a4fd4;
    --primary-light: #e8f0fe;
    --accent: #4fc3f7;
    --bg: #F8FAFC;
    --bg-dark: #0F172A;
    --bg-card: #FFFFFF;
    --text: #1E293B;
    --text-muted: #64748B;
    --border: #E2E8F0;
    --success: #10B981;
    --warning: #F59E0B;
    --danger: #EF4444;
    --radius: 12px;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
}

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

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 16px 0;
    transition: all 0.3s;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
    padding: 8px 0;
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 22px;
    font-weight: 800;
    color: var(--primary);
}

.brand-icon {
    font-size: 28px;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--primary);
}

.nav-actions {
    display: flex;
    gap: 12px;
    align-items: center;
}

/* Buttons */
.btn-primary {
    display: inline-block;
    padding: 12px 28px;
    background: var(--primary);
    color: #fff;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
    font-size: 15px;
    box-shadow: 0 4px 15px rgba(43, 107, 243, 0.3);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(43, 107, 243, 0.4);
}

.btn-primary-sm {
    display: inline-block;
    padding: 8px 20px;
    background: var(--primary);
    color: #fff;
    border-radius: 6px;
    font-weight: 600;
    text-decoration: none;
    font-size: 13px;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
}

.btn-primary-sm:hover {
    background: var(--primary-dark);
}

.btn-secondary {
    display: inline-block;
    padding: 12px 28px;
    background: rgba(43, 107, 243, 0.08);
    color: var(--primary);
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    cursor: pointer;
}

.btn-secondary:hover {
    background: rgba(43, 107, 243, 0.15);
}

.btn-ghost {
    display: inline-block;
    padding: 8px 20px;
    color: var(--text);
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    cursor: pointer;
    transition: color 0.2s;
}

.btn-ghost:hover {
    color: var(--primary);
}

.btn-outline {
    display: inline-block;
    padding: 12px 28px;
    border: 2px solid var(--border);
    color: var(--text);
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    cursor: pointer;
    background: transparent;
    font-size: 15px;
    width: 100%;
    text-align: center;
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.btn-glow {
    display: inline-block;
    padding: 16px 40px;
    background: var(--primary);
    color: #fff;
    border-radius: 10px;
    font-weight: 700;
    font-size: 18px;
    text-decoration: none;
    cursor: pointer;
    border: none;
    box-shadow: 0 0 30px rgba(43, 107, 243, 0.5), 0 0 60px rgba(43, 107, 243, 0.2);
    transition: all 0.3s;
}

.btn-glow:hover {
    box-shadow: 0 0 40px rgba(43, 107, 243, 0.7), 0 0 80px rgba(43, 107, 243, 0.3);
    transform: translateY(-3px);
}

.full-width {
    width: 100%;
    text-align: center;
}

/* Hero */
.hero {
    padding: 120px 0 80px;
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: -200px;
    right: -200px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(43, 107, 243, 0.08) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 20px;
}

.hero h1 {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--bg-dark);
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: 17px;
    color: var(--text-muted);
    margin-bottom: 32px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 40px;
}

.hero-stats {
    display: flex;
    gap: 40px;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-num {
    font-size: 24px;
    font-weight: 800;
    color: var(--primary);
}

.stat-label {
    font-size: 13px;
    color: var(--text-muted);
}

/* Mockup Card */
.mockup-card {
    background: var(--bg-card);
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    border: 1px solid var(--border);
}

.mockup-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: #f1f5f9;
    border-bottom: 1px solid var(--border);
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.dot.red {
    background: #ef4444;
}

.dot.yellow {
    background: #f59e0b;
}

.dot.green {
    background: #10b981;
}

.mockup-title {
    margin-left: 8px;
    font-size: 12px;
    color: var(--text-muted);
}

.mockup-body {
    padding: 20px;
}

.mock-stat-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 16px;
}

.mock-stat {
    text-align: center;
    padding: 16px;
    background: #f8fafc;
    border-radius: 10px;
}

.mock-stat-num {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
}

.mock-stat-label {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 4px;
}

.mock-chart {
    height: 60px;
    background: linear-gradient(90deg, rgba(43, 107, 243, 0.1) 0%, rgba(43, 107, 243, 0.3) 50%, rgba(43, 107, 243, 0.1) 100%);
    border-radius: 8px;
    margin-bottom: 16px;
}

.mock-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.mock-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    background: #f8fafc;
    border-radius: 8px;
    font-size: 13px;
}

.mock-avatar {
    font-size: 18px;
}

.mock-tag {
    padding: 2px 8px;
    background: #fef3c7;
    color: #92400e;
    border-radius: 4px;
    font-size: 11px;
    margin-left: auto;
}

.mock-tag.success {
    background: #d1fae5;
    color: #065f46;
}

/* Sections */
.section {
    padding: 80px 0;
}

.section-alt {
    background: #fff;
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header h2 {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 12px;
}

.section-header p {
    font-size: 16px;
    color: var(--text-muted);
}

/* Pain Points */
.pain-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.pain-card {
    padding: 28px;
    border-radius: var(--radius);
    background: var(--bg-card);
    box-shadow: var(--shadow);
    transition: transform 0.3s;
    border: 1px solid var(--border);
}

.pain-card:hover {
    transform: translateY(-4px);
}

.pain-card.before {
    border-left: 3px solid var(--danger);
}

.pain-card.after {
    border-left: 3px solid var(--success);
}

.pain-icon {
    font-size: 32px;
    margin-bottom: 12px;
}

.pain-card h3 {
    font-size: 18px;
    margin-bottom: 8px;
}

.pain-card p {
    font-size: 14px;
    color: var(--text-muted);
}

/* Features */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    padding: 32px;
    border-radius: var(--radius);
    background: var(--bg-card);
    box-shadow: var(--shadow);
    transition: all 0.3s;
    border: 1px solid var(--border);
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.feature-icon {
    font-size: 40px;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 18px;
    margin-bottom: 8px;
}

.feature-card p {
    font-size: 14px;
    color: var(--text-muted);
}

/* Pricing */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    align-items: start;
}

.pricing-card {
    padding: 32px;
    border-radius: 16px;
    background: var(--bg-card);
    box-shadow: var(--shadow);
    border: 2px solid var(--border);
    text-align: center;
    position: relative;
    transition: transform 0.3s;
}

.pricing-card:hover {
    transform: translateY(-4px);
}

.pricing-card.popular {
    border-color: var(--primary);
    transform: scale(1.05);
}

.pricing-card.popular:hover {
    transform: scale(1.05) translateY(-4px);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 4px 16px;
    background: var(--primary);
    color: #fff;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.pricing-header {
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
}

.pricing-header h3 {
    font-size: 20px;
    margin-bottom: 12px;
}

.pricing-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 2px;
}

.price-currency {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-muted);
}

.price-amount {
    font-size: 48px;
    font-weight: 800;
    color: var(--text);
}

.price-period {
    font-size: 14px;
    color: var(--text-muted);
}

.pricing-card ul {
    list-style: none;
    margin-bottom: 24px;
    text-align: left;
}

.pricing-card li {
    padding: 8px 0;
    font-size: 14px;
}

/* FAQ */
.faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.faq-card {
    padding: 24px;
    border-radius: var(--radius);
    background: var(--bg-card);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

.faq-card h4 {
    font-size: 16px;
    margin-bottom: 8px;
    color: var(--text);
}

.faq-card p {
    font-size: 14px;
    color: var(--text-muted);
}

/* CTA */
.cta-section {
    padding: 80px 0;
    background: var(--bg-dark);
    text-align: center;
}

.cta-section h2 {
    font-size: 36px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 16px;
}

.cta-section p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 32px;
}

/* Footer */
.footer {
    background: #0B1120;
    padding: 48px 0 24px;
    color: rgba(255, 255, 255, 0.6);
}

.footer-content {
    display: flex;
    flex-direction: column;
}

.footer-brand {
    font-size: 20px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 8px;
}

.footer-brand p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
    margin-top: 4px;
}

.footer-links {
    display: flex;
    gap: 60px;
    margin: 24px 0;
}

.footer-links h4 {
    color: #fff;
    margin-bottom: 12px;
    font-size: 14px;
}

.footer-links a {
    display: block;
    color: rgba(255, 255, 255, 0.5);
    text-decoration: none;
    font-size: 13px;
    padding: 4px 0;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--accent);
}

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    font-size: 12px;
}

/* Modal */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(8px);
    z-index: 200;
    align-items: center;
    justify-content: center;
}

.modal-card {
    background: #fff;
    border-radius: 16px;
    padding: 36px;
    width: 420px;
    max-width: 90vw;
    box-shadow: var(--shadow-lg);
}

.modal-card h2 {
    font-size: 22px;
    margin-bottom: 24px;
    text-align: center;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text);
}

.form-group input {
    width: 100%;
    padding: 10px 14px;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    transition: border-color 0.2s;
    outline: none;
}

.form-group input:focus {
    border-color: var(--primary);
}

.form-switch {
    margin-top: 16px;
    text-align: center;
    font-size: 13px;
    color: var(--text-muted);
}

.form-switch a {
    color: var(--primary);
    cursor: pointer;
    font-weight: 600;
    text-decoration: none;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 32px;
    }

    .hero-visual {
        display: none;
    }

    .nav-links {
        display: none;
    }

    .pain-grid,
    .feature-grid,
    .pricing-grid,
    .faq-grid {
        grid-template-columns: 1fr;
    }

    .pricing-card.popular {
        transform: none;
    }
}