/* ── Design Tokens (Light Theme) ── */
:root {
    --bg: #f8fafc;
    --surface: #ffffff;
    --surface-subtle: #f1f5f9;
    --border: #e2e8f0;
    --text-main: #0f172a;
    --text-muted: #475569;
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-light: #eff6ff;
    --accent: #0284c7;
    --radius: 12px;
    --radius-sm: 8px;
    --max-width: 1120px;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 20px -2px rgba(15, 23, 42, 0.08);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 90px;
}

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

a {
    color: inherit;
    text-decoration: none;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

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

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--text-main);
}

.logo-wave {
    color: var(--primary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
    list-style: none;
}

.nav-links a {
    font-size: 0.92rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: color 0.2s;
}

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

/* Client Panel CTA Button */
.btn-panel {
    background: var(--primary-light) !important;
    color: var(--primary) !important;
    border: 1px solid rgba(37, 99, 235, 0.2);
    padding: 8px 18px;
    border-radius: var(--radius-sm);
    font-weight: 600 !important;
    transition: all 0.2s ease !important;
}

.btn-panel:hover {
    background: var(--primary) !important;
    color: #fff !important;
    border-color: var(--primary);
    transform: translateY(-1px);
}

/* ── Hero Section ── */
.hero {
    padding: 150px 0 90px;
    text-align: center;
    background: linear-gradient(180deg, #ffffff 0%, var(--bg) 100%);
    border-bottom: 1px solid var(--border);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--primary-light);
    border: 1px solid rgba(37, 99, 235, 0.15);
    padding: 6px 16px;
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 24px;
}

.hero-title {
    font-size: clamp(2.2rem, 5vw, 3.8rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: 20px;
    color: var(--text-main);
}

.hero-title span {
    color: var(--primary);
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-muted);
    max-width: 620px;
    margin: 0 auto 36px;
}

.hero-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 26px;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
}

.btn-primary {
    background: var(--primary);
    color: #ffffff;
    box-shadow: 0 2px 10px rgba(37, 99, 235, 0.25);
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--surface);
    color: var(--text-main);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--surface-subtle);
}

/* ── Features Section ── */
.section {
    padding: 90px 0;
}

.section-header {
    text-align: center;
    max-width: 580px;
    margin: 0 auto 56px;
}

.section-label {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--primary);
    margin-bottom: 12px;
    display: block;
}

.section-title {
    font-size: clamp(1.8rem, 3vw, 2.4rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--text-main);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(310px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 28px;
    box-shadow: var(--shadow-sm);
    transition: all 0.25s ease;
}

.feature-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: rgba(37, 99, 235, 0.3);
}

.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    background: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.feature-card p {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* ── Contact Section ── */
.contact-box {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    display: grid;
    grid-template-columns: 1fr 1fr;
    overflow: hidden;
}

.contact-info {
    padding: 48px;
    background: var(--surface-subtle);
    border-right: 1px solid var(--border);
}

.contact-info h2 {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 12px;
}

.contact-info p {
    color: var(--text-muted);
    margin-bottom: 28px;
    font-size: 0.98rem;
}

.contact-form {
    padding: 48px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.95rem;
    background: var(--bg);
    outline: none;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    background: #ffffff;
}

.form-group textarea {
    resize: vertical;
    min-height: 110px;
}

/* ── Footer ── */
.footer {
    padding: 40px 0;
    border-top: 1px solid var(--border);
    text-align: center;
    font-size: 0.88rem;
    color: var(--text-muted);
    background: var(--surface);
}

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

    .contact-info {
        border-right: none;
        border-bottom: 1px solid var(--border);
        padding: 32px 24px;
    }

    .contact-form {
        padding: 32px 24px;
    }

    .nav-links {
        gap: 16px;
    }
}