/* ─── Reset & Base ─────────────────────────────────────── */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --navy: #0f1729;
    --navy-light: #1a2744;
    --navy-lighter: #243352;
    --green: #00d68f;
    --green-dark: #00b377;
    --green-light: #e6fcf3;
    --white: #ffffff;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-400: #94a3b8;
    --gray-600: #475569;
    --gray-800: #1e293b;
    --radius: 12px;
    --radius-lg: 20px;
    --shadow: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--gray-800);
    background: var(--white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ─── Typography ──────────────────────────────────────── */
h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); font-weight: 800; line-height: 1.1; letter-spacing: -0.02em; }
h2 { font-size: clamp(2rem, 4vw, 3rem); font-weight: 700; line-height: 1.15; letter-spacing: -0.02em; text-align: center; }
h3 { font-size: 1.25rem; font-weight: 600; margin-bottom: 8px; }
p { color: var(--gray-600); }

.gradient-text {
    background: linear-gradient(135deg, var(--green), #00b4d8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    text-align: center;
    font-size: 1.125rem;
    margin-top: 12px;
    margin-bottom: 48px;
}

/* ─── Buttons ─────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: all 0.2s ease;
    cursor: pointer;
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--green);
    color: var(--navy);
}
.btn-primary:hover {
    background: var(--green-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--navy);
    color: var(--white);
}
.btn-secondary:hover {
    background: var(--navy-light);
    transform: translateY(-1px);
}

.btn-outline {
    border-color: var(--gray-200);
    color: var(--gray-800);
    background: transparent;
}
.btn-outline:hover {
    border-color: var(--green);
    color: var(--green-dark);
}

.btn-sm { padding: 8px 16px; font-size: 0.875rem; }
.btn-lg { padding: 16px 32px; font-size: 1.125rem; }
.btn-full { width: 100%; }

/* ─── Navigation ──────────────────────────────────────── */
.nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255,255,255,0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--gray-100);
    z-index: 100;
    padding: 16px 0;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--navy);
    text-decoration: none;
}

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

.nav-links a {
    color: var(--gray-600);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.2s;
}
.nav-links a:hover { color: var(--navy); }

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--navy);
    transition: 0.3s;
}

/* ─── Hero ────────────────────────────────────────────── */
.hero {
    padding: 160px 0 80px;
    text-align: center;
    background: linear-gradient(180deg, var(--gray-50) 0%, var(--white) 100%);
}

.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    background: var(--green-light);
    color: var(--green-dark);
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 24px;
}

.hero-subtitle {
    max-width: 600px;
    margin: 24px auto;
    font-size: 1.25rem;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-top: 32px;
    flex-wrap: wrap;
}

.hero-note {
    font-size: 0.875rem;
    color: var(--gray-400);
    margin-top: 16px;
}

/* ─── Social Proof ────────────────────────────────────── */
.social-proof {
    padding: 48px 0;
    border-top: 1px solid var(--gray-100);
    border-bottom: 1px solid var(--gray-100);
}

.proof-stats {
    display: flex;
    justify-content: center;
    gap: 80px;
    flex-wrap: wrap;
}

.stat { text-align: center; }
.stat-number { display: block; font-size: 2rem; font-weight: 800; color: var(--navy); }
.stat-label { font-size: 0.875rem; color: var(--gray-400); }

/* ─── Features ────────────────────────────────────────── */
.features {
    padding: 100px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 48px;
}

.feature-card {
    padding: 32px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-100);
    transition: all 0.3s ease;
}
.feature-card:hover {
    border-color: var(--green);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 16px;
}

.feature-card p {
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ─── How It Works ────────────────────────────────────── */
.how-it-works {
    padding: 100px 0;
    background: var(--gray-50);
}

.steps {
    display: flex;
    align-items: flex-start;
    gap: 24px;
    margin-top: 48px;
    justify-content: center;
}

.step {
    text-align: center;
    max-width: 280px;
    flex: 1;
}

.step-number {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--green);
    color: var(--navy);
    font-size: 1.5rem;
    font-weight: 800;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.step-arrow {
    font-size: 2rem;
    color: var(--gray-400);
    margin-top: 16px;
    flex-shrink: 0;
}

.step p {
    font-size: 0.95rem;
}

/* ─── Pricing ─────────────────────────────────────────── */
.pricing {
    padding: 100px 0;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 48px;
    align-items: start;
}

.pricing-card {
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    position: relative;
}

.pricing-card.featured {
    border-color: var(--green);
    box-shadow: 0 0 0 1px var(--green), var(--shadow-lg);
    transform: scale(1.04);
}

.pricing-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--green);
    color: var(--navy);
    padding: 4px 16px;
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 700;
}

.pricing-header {
    margin-bottom: 24px;
}

.pricing-header h3 {
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.price {
    font-size: 3rem;
    font-weight: 800;
    color: var(--navy);
}
.price span {
    font-size: 1rem;
    font-weight: 500;
    color: var(--gray-400);
}

.price-annual {
    font-size: 0.875rem;
    color: var(--gray-400);
    margin-top: 4px;
}

.pricing-features {
    list-style: none;
    margin-bottom: 32px;
}

.pricing-features li {
    padding: 8px 0;
    font-size: 0.95rem;
    color: var(--gray-600);
}

.pricing-features li.disabled {
    color: var(--gray-400);
}

/* ─── FAQ ─────────────────────────────────────────────── */
.faq {
    padding: 100px 0;
    background: var(--gray-50);
}

.faq-list {
    max-width: 720px;
    margin: 48px auto 0;
}

.faq-item {
    border-bottom: 1px solid var(--gray-200);
}

.faq-item summary {
    padding: 20px 0;
    font-weight: 600;
    font-size: 1.1rem;
    cursor: pointer;
    color: var(--navy);
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.faq-item summary::after {
    content: "+";
    font-size: 1.5rem;
    color: var(--gray-400);
    transition: 0.2s;
}
.faq-item[open] summary::after {
    transform: rotate(45deg);
}

.faq-item p {
    padding: 0 0 20px;
    line-height: 1.7;
}

/* ─── CTA ─────────────────────────────────────────────── */
.cta {
    padding: 100px 0;
    text-align: center;
}

.cta p {
    font-size: 1.25rem;
    margin-top: 16px;
    margin-bottom: 32px;
}

/* ─── Footer ──────────────────────────────────────────── */
.footer {
    background: var(--navy);
    color: var(--white);
    padding: 64px 0 32px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
}

.footer-brand p {
    color: var(--gray-400);
    margin-top: 8px;
    font-size: 0.95rem;
}

.footer-email {
    color: var(--green) !important;
    margin-top: 12px !important;
}

.footer-links h4 {
    margin-bottom: 16px;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-400);
}

.footer-links a {
    display: block;
    color: var(--white);
    text-decoration: none;
    font-size: 0.95rem;
    padding: 4px 0;
    transition: color 0.2s;
}
.footer-links a:hover { color: var(--green); }

.footer-bottom {
    margin-top: 48px;
    padding-top: 24px;
    border-top: 1px solid var(--navy-lighter);
    text-align: center;
}
.footer-bottom p {
    font-size: 0.875rem;
    color: var(--gray-400);
}

/* ─── Responsive ──────────────────────────────────────── */
@media (max-width: 768px) {
    .mobile-menu-btn { display: flex; }

    .nav-links {
        display: none;
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 24px;
        border-bottom: 1px solid var(--gray-200);
        gap: 16px;
    }
    .nav-links.active { display: flex; }

    .features-grid { grid-template-columns: 1fr; }
    .pricing-grid { grid-template-columns: 1fr; }
    .pricing-card.featured { transform: none; }

    .steps { flex-direction: column; align-items: center; }
    .step-arrow { transform: rotate(90deg); }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }

    .proof-stats { gap: 40px; }
    .hero-cta { flex-direction: column; align-items: center; }
}