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

:root {
    --primary:       #6366f1;
    --primary-dark:  #4f46e5;
    --primary-light: #ede9fe;
    --accent:        #f59e0b;
    --dark:          #0f172a;
    --dark2:         #1e293b;
    --gray:          #64748b;
    --gray-light:    #f1f5f9;
    --white:         #ffffff;
    --radius:        16px;
    --radius-lg:     24px;
    --shadow:        0 4px 24px rgba(0,0,0,0.08);
    --shadow-lg:     0 16px 48px rgba(0,0,0,0.12);
    --success:       #10b981;
    --error:         #ef4444;
}

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    color: var(--dark);
    background: var(--white);
    line-height: 1.6;
    font-size: 16px;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ── Typography ── */
h1 { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 800; line-height: 1.15; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); font-weight: 700; line-height: 1.2; letter-spacing: -0.01em; }
h3 { font-size: 1.2rem; font-weight: 600; line-height: 1.3; }
p  { color: var(--gray); line-height: 1.75; }

/* ── Layout ── */
.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }
.section    { padding: 96px 0; }
.section-sm { padding: 64px 0; }

/* ── Navbar ── */
.navbar {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0,0,0,0.06);
    transition: box-shadow 0.2s;
}
.navbar .inner {
    display: flex; align-items: center; justify-content: space-between;
    height: 68px; max-width: 1140px; margin: 0 auto; padding: 0 24px;
}
.navbar .logo {
    font-size: 20px; font-weight: 800; color: var(--dark);
    display: flex; align-items: center; gap: 10px;
}
.navbar .logo span { color: var(--primary); }
.navbar .logo-icon {
    width: 36px; height: 36px; border-radius: 10px;
    background: linear-gradient(135deg, var(--primary), #818cf8);
    display: flex; align-items: center; justify-content: center;
    font-size: 18px; color: white; flex-shrink: 0;
}
.navbar nav { display: flex; align-items: center; gap: 4px; }
.navbar nav a {
    padding: 8px 16px; border-radius: 10px; font-size: 14px; font-weight: 500;
    color: var(--gray); transition: all 0.15s; white-space: nowrap;
}
.navbar nav a:hover { color: var(--dark); background: var(--gray-light); }
.navbar .btn-nav {
    padding: 9px 20px; background: var(--primary); color: white !important;
    border-radius: 10px; font-size: 14px; font-weight: 600; transition: all 0.15s;
}
.navbar .btn-nav:hover { background: var(--primary-dark) !important; box-shadow: 0 4px 16px rgba(99,102,241,0.35); }
.hamburger { display: none; background: none; border: none; cursor: pointer; padding: 6px; color: var(--dark); }

/* ── Buttons ── */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 14px 28px; border-radius: var(--radius); font-size: 15px; font-weight: 600;
    cursor: pointer; border: none; transition: all 0.2s; text-decoration: none; line-height: 1;
}
.btn-primary { background: var(--primary); color: white; box-shadow: 0 4px 16px rgba(99,102,241,0.35); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(99,102,241,0.45); }
.btn-outline { background: transparent; color: var(--dark); border: 2px solid rgba(0,0,0,0.12); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-light); }
.btn-lg { padding: 17px 36px; font-size: 16px; border-radius: 18px; }
.btn-white { background: white; color: var(--primary); box-shadow: 0 4px 24px rgba(0,0,0,0.15); }
.btn-white:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(0,0,0,0.2); }

/* ── Badge ── */
.badge {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 6px 14px; border-radius: 99px; font-size: 13px; font-weight: 600;
    background: var(--primary-light); color: var(--primary); margin-bottom: 20px;
}

/* ── Cards ── */
.card {
    background: white; border-radius: var(--radius-lg);
    border: 1px solid rgba(0,0,0,0.06); box-shadow: var(--shadow);
    padding: 32px; transition: all 0.25s;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }

/* ── Grids ── */
.grid-2 { display: grid; grid-template-columns: repeat(2,1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; }

/* ── Forms ── */
.form-group { margin-bottom: 20px; }
.form-group label {
    display: block; font-size: 13px; font-weight: 600;
    color: var(--dark); margin-bottom: 6px;
}
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%; padding: 12px 16px;
    border: 1.5px solid #e2e8f0; border-radius: 12px;
    font-size: 15px; font-family: inherit; color: var(--dark);
    background: white; transition: all 0.15s; outline: none;
    -webkit-appearance: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99,102,241,0.12);
}
.form-group input.error,
.form-group select.error,
.form-group textarea.error { border-color: var(--error); }
.form-group textarea { resize: vertical; min-height: 120px; }
.form-group .hint { font-size: 12px; color: var(--gray); margin-top: 4px; }

/* ── Alert ── */
.alert {
    padding: 14px 18px; border-radius: 12px; font-size: 14px; font-weight: 500;
    display: none; margin-bottom: 20px;
}
.alert.success { background: rgba(16,185,129,0.1); color: #065f46; border: 1px solid rgba(16,185,129,0.25); }
.alert.error   { background: rgba(239,68,68,0.1);  color: #991b1b; border: 1px solid rgba(239,68,68,0.25); }
.alert.show    { display: flex; align-items: flex-start; gap: 10px; }

/* ── Footer ── */
footer { background: var(--dark); color: rgba(255,255,255,0.55); padding: 72px 0 32px; }
footer .footer-grid {
    display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px;
}
footer h4 { color: white; font-size: 13px; font-weight: 700; margin-bottom: 16px; text-transform: uppercase; letter-spacing: .06em; }
footer ul { list-style: none; }
footer ul li { margin-bottom: 10px; }
footer ul li a { color: rgba(255,255,255,0.5); font-size: 14px; transition: color 0.15s; }
footer ul li a:hover { color: white; }
footer .footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08); padding-top: 28px;
    display: flex; justify-content: space-between; align-items: center; font-size: 13px;
}
.logo-footer { font-size: 18px; font-weight: 800; color: white; margin-bottom: 14px; }
.logo-footer span { color: var(--primary); }
footer p { color: rgba(255,255,255,0.45); font-size: 14px; line-height: 1.7; }

/* ── Page hero (inner pages) ── */
.page-hero {
    background: linear-gradient(135deg, var(--dark) 0%, var(--dark2) 100%);
    padding: 140px 0 80px; text-align: center;
}
.page-hero h1 { color: white; font-size: clamp(1.8rem,4vw,3rem); }
.page-hero p  { color: rgba(255,255,255,0.6); margin-top: 12px; font-size: 18px; }

/* ── Prose (legal pages) ── */
.prose { max-width: 820px; margin: 0 auto; }
.prose h2 { margin: 48px 0 16px; color: var(--dark); font-size: 1.35rem; padding-bottom: 10px; border-bottom: 2px solid var(--gray-light); }
.prose h3 { margin: 28px 0 10px; color: var(--dark); font-size: 1.05rem; }
.prose p  { margin-bottom: 16px; color: #475569; }
.prose ul { margin: 12px 0 20px 24px; }
.prose ul li { color: #475569; margin-bottom: 8px; line-height: 1.7; }
.prose a  { color: var(--primary); text-decoration: underline; }
.prose strong { color: var(--dark); }

/* ── Utilities ── */
.text-center { text-align: center; }
.text-primary { color: var(--primary) !important; }
.mt-4  { margin-top: 16px; }
.mt-6  { margin-top: 24px; }
.mt-8  { margin-top: 32px; }
.mt-12 { margin-top: 48px; }
.mb-4  { margin-bottom: 16px; }
.mb-8  { margin-bottom: 32px; }
.flex  { display: flex; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.flex-wrap { flex-wrap: wrap; }
.gap-4 { gap: 16px; }
.gap-6 { gap: 24px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

/* ── Responsive ── */
@media (max-width: 900px) {
    .grid-3 { grid-template-columns: repeat(2,1fr); }
    footer .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 768px) {
    .navbar nav {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 68px; left: 0; right: 0;
        background: #ffffff;
        padding: 12px 16px 24px;
        gap: 2px;
        border-top: 2px solid #6366f1;
        box-shadow: 0 16px 40px rgba(0,0,0,0.15);
        z-index: 99;
    }
    .navbar nav.open { display: flex; }
    .navbar nav a {
        padding: 13px 16px !important;
        border-radius: 10px !important;
        font-size: 15px !important;
        font-weight: 500 !important;
        color: #0f172a !important;
        background: transparent !important;
        width: 100%;
        display: block;
    }
    .navbar nav a:hover { background: #f1f5f9 !important; }
    .navbar nav .btn-nav {
        margin-top: 8px !important;
        background: #6366f1 !important;
        color: white !important;
        text-align: center !important;
        border-radius: 10px !important;
        font-weight: 600 !important;
    }
    .navbar nav .btn-nav:hover { background: #4f46e5 !important; }
    .hamburger { display: block; }
    .grid-2 { grid-template-columns: 1fr; }
    .section { padding: 64px 0; }
    .hide-mobile { display: none !important; }
}
@media (max-width: 600px) {
    .grid-3 { grid-template-columns: 1fr; }
    footer .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    footer .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
    footer .footer-bottom div { flex-wrap: wrap; justify-content: center; gap: 12px; }
}