/* =========================================================
   AiOffers — Umbrella Site
   Editorial, quiet, confident. Serif display + clean sans.
   ========================================================= */

:root {
    --ink:        #111827;
    --ink-soft:   #374151;
    --muted:      #6b7280;
    --whisper:    #9ca3af;
    --line:       #e5e7eb;
    --paper:      #fdfcf8;  /* warm off-white */
    --surface:    #ffffff;
    --accent:     #b45309;  /* amber-700 — editorial, not corporate */
    --accent-soft:#fef3c7;
    --buyers:     #0f766e;  /* teal-700 — DirectOffers accent */
    --agents:     #2563eb;  /* blue-600 — OfferCopilot + B2B dashboard */
    --font-display: 'Fraunces', 'Georgia', serif;
    --font-body:    'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

[data-theme="dark"] {
    --ink:        #f9fafb;
    --ink-soft:   #e5e7eb;
    --muted:      #9ca3af;
    --whisper:    #6b7280;
    --line:       #1f2937;
    --paper:      #0b0b0f;
    --surface:    #15151b;
    --accent:     #fbbf24;
    --accent-soft:rgba(251, 191, 36, 0.12);
    --buyers:     #2dd4bf;
    --agents:     #60a5fa;  /* blue-400 */
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    background: var(--paper);
    color: var(--ink-soft);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 1.75rem;
}

.eyebrow {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--accent);
    padding: 0.4rem 0.75rem;
    border: 1px solid var(--accent);
    border-radius: 2px;
    margin-bottom: 1.75rem;
}

/* ---------- Header ---------- */
.umbrella-header {
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--line);
    background: var(--paper);
    position: sticky;
    top: 0;
    z-index: 10;
    backdrop-filter: blur(8px);
}

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

.wordmark {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -0.02em;
    text-decoration: none;
}

.wordmark:hover { color: var(--accent); }

.header-actions {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.header-link {
    color: var(--ink-soft);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.15s;
}

.header-link:hover { color: var(--accent); }

.theme-toggle {
    background: transparent;
    border: 1px solid var(--line);
    border-radius: 999px;
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--ink-soft);
    transition: all 0.2s;
}

.theme-toggle:hover { border-color: var(--accent); color: var(--accent); }
.theme-toggle .moon-icon { display: none; }
[data-theme="dark"] .theme-toggle .sun-icon { display: none; }
[data-theme="dark"] .theme-toggle .moon-icon { display: inline-block; }

/* ---------- Hero ---------- */
.hero {
    padding: 8rem 0 5rem;
    border-bottom: 1px solid var(--line);
}

.display {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6.5vw, 5.5rem);
    line-height: 1.02;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -0.03em;
    margin-bottom: 2rem;
    max-width: 22ch;
}

.display em {
    font-style: italic;
    font-weight: 500;
    color: var(--accent);
}

.lede {
    font-size: 1.3rem;
    line-height: 1.55;
    color: var(--ink-soft);
    max-width: 38em;
    margin-bottom: 2.5rem;
}

.hero-meta {
    font-size: 0.85rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--whisper);
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.hero-meta .divider { opacity: 0.5; }

/* ---------- Products ---------- */
.products {
    padding: 5rem 0;
}

.products-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.product-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 3rem 2.5rem;
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    position: relative;
    overflow: hidden;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.product-card--buyers::before { background: var(--buyers); }
.product-card--agents::before { background: var(--agents); }

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 50px -20px rgba(0,0,0,0.15);
    text-decoration: none;
}

.product-card:hover::before { transform: scaleX(1); }

.product-card--buyers:hover { border-color: var(--buyers); }
.product-card--agents:hover { border-color: var(--agents); }

.product-tag {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 1rem;
}

.product-card--buyers .product-tag { color: var(--buyers); }
.product-card--agents .product-tag { color: var(--agents); }

.product-name {
    font-family: var(--font-display);
    font-size: 2.75rem;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -0.02em;
    margin-bottom: 1.25rem;
    line-height: 1;
}

.product-pitch {
    font-size: 1.05rem;
    line-height: 1.6;
    color: var(--ink-soft);
    margin-bottom: 1.75rem;
}

.product-highlights {
    list-style: none;
    margin-bottom: 2rem;
}

.product-highlights li {
    padding: 0.6rem 0;
    border-top: 1px solid var(--line);
    font-size: 0.95rem;
    color: var(--ink-soft);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.product-highlights li::before {
    content: '→';
    color: var(--accent);
    font-weight: 600;
}

.product-card--buyers .product-highlights li::before { color: var(--buyers); }
.product-card--agents .product-highlights li::before { color: var(--agents); }

.product-cta {
    margin-top: auto;
    font-weight: 600;
    color: var(--ink);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
    letter-spacing: 0.01em;
}

.product-card:hover .product-cta { color: var(--accent); }
.product-card--buyers:hover .product-cta { color: var(--buyers); }
.product-card--agents:hover .product-cta { color: var(--agents); }

.product-cta svg { transition: transform 0.2s; }
.product-card:hover .product-cta svg { transform: translateX(4px); }

/* ---------- About ---------- */
.about {
    padding: 6rem 0;
    border-top: 1px solid var(--line);
    background: var(--surface);
}

[data-theme="dark"] .about { background: var(--paper); }

.about-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-copy h2 {
    font-family: var(--font-display);
    font-size: clamp(1.85rem, 3.5vw, 2.75rem);
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -0.02em;
    line-height: 1.15;
    margin-bottom: 1.5rem;
}

.about-copy p {
    font-size: 1.05rem;
    line-height: 1.7;
    margin-bottom: 1.25rem;
    color: var(--ink-soft);
}

.about-facts {
    border-left: 2px solid var(--accent);
    padding-left: 2rem;
}

.fact {
    margin-bottom: 2rem;
}

.fact:last-child { margin-bottom: 0; }

.fact-label {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 0.35rem;
}

.fact-value {
    font-family: var(--font-display);
    font-size: 1.15rem;
    color: var(--ink);
    font-weight: 500;
}

.fact-value a { color: var(--ink); text-decoration: underline; text-decoration-color: var(--accent); }
.fact-value a:hover { color: var(--accent); }

/* ---------- Footer ---------- */
.umbrella-footer {
    background: var(--ink);
    color: #d1d5db;
    padding: 4rem 0 2rem;
}

[data-theme="dark"] .umbrella-footer {
    background: #000;
    border-top: 1px solid var(--line);
}

.umbrella-footer .wordmark {
    color: #fdfcf8;
    font-size: 1.35rem;
    display: inline-block;
    margin-bottom: 0.5rem;
}

.footer-top {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    padding-bottom: 2.5rem;
    border-bottom: 1px solid #374151;
}

.footer-brand p {
    color: #9ca3af;
    font-size: 0.95rem;
}

.footer-cols {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.footer-cols h4 {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: #fdfcf8;
    margin-bottom: 1rem;
}

.footer-cols ul { list-style: none; }

.footer-cols li { margin-bottom: 0.6rem; }

.footer-cols a {
    color: #9ca3af;
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.15s;
}

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

.footer-bottom {
    padding-top: 2rem;
    font-size: 0.85rem;
    color: #6b7280;
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
    .hero { padding: 5rem 0 3.5rem; }
    .products { padding: 3.5rem 0; }
    .products-grid { grid-template-columns: 1fr; }
    .about { padding: 4rem 0; }
    .about-grid { grid-template-columns: 1fr; gap: 2.5rem; }
    .about-facts { border-left: none; border-top: 2px solid var(--accent); padding: 1.5rem 0 0; }
    .footer-top { grid-template-columns: 1fr; gap: 2rem; }
    .footer-cols { grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
    .header-link { display: none; }
    .header-link:last-of-type { display: inline; }
}

@media (max-width: 480px) {
    .footer-cols { grid-template-columns: 1fr 1fr; }
    .product-card { padding: 2.25rem 1.75rem; }
    .product-name { font-size: 2.25rem; }
}

/* ---------- Static pages (support, terms, privacy) ---------- */
.static-page {
    max-width: 720px;
    margin: 4rem auto;
    padding: 0 1.75rem;
}

.static-page h1 {
    font-family: var(--font-display);
    font-size: 2.75rem;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -0.02em;
    margin-bottom: 1.5rem;
}

.static-page h2 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--ink);
    margin-top: 2.5rem;
    margin-bottom: 0.75rem;
}

.static-page p { margin-bottom: 1rem; font-size: 1rem; }
.static-page a { color: var(--accent); }