/* ============================================================
   Larry Trustee AI — Institutional Portal Styles
   Premium institutional feel: dark navy + gold + cream.
   ============================================================ */

:root {
    --i-bg: #0c1a2e;
    --i-bg-alt: #122340;
    --i-text: #e8e6e3;
    --i-text-muted: #d6cfb8;
    --i-text-faint: #a8a39a;
    --i-gold: #c9a84c;
    --i-gold-bright: #f5e8b8;
    --i-gold-warm: #f0d98a;
    --i-border: rgba(201, 168, 76, 0.3);
    --i-cream: #fdfaf2;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--i-bg);
    color: var(--i-text);
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    line-height: 1.6;
    min-height: 100vh;
}
a { color: var(--i-gold); text-decoration: none; transition: color 0.15s; }
a:hover { color: var(--i-gold-warm); }
.inst-gold { color: var(--i-gold); }

/* ---- Header ---- */
.inst-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 36px;
    border-bottom: 1px solid var(--i-border);
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(6px);
    position: sticky;
    top: 0;
    z-index: 50;
}
.inst-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--i-gold-bright);
    font-family: 'Playfair Display', serif;
    font-size: 18px;
    font-weight: 600;
}
.inst-logo {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: 2px solid var(--i-gold);
    object-fit: cover;
}
.inst-nav {
    display: flex;
    gap: 24px;
    align-items: center;
}
.inst-nav a {
    color: var(--i-text-muted);
    font-size: 14px;
    font-weight: 500;
}
.inst-nav-cta {
    background: linear-gradient(135deg, var(--i-gold), #b08a30);
    color: var(--i-bg);
    border: none;
    padding: 9px 18px;
    border-radius: 8px;
    font-weight: 700;
    font-size: 13.5px;
    cursor: pointer;
    transition: transform 0.15s, box-shadow 0.15s;
    font-family: inherit;
}
.inst-nav-cta:hover { transform: translateY(-1px); box-shadow: 0 6px 18px rgba(201, 168, 76, 0.45); }

/* ---- Hero ---- */
.inst-hero {
    background: linear-gradient(160deg, #0c1a2e 0%, #1a2c4f 50%, #0c1a2e 100%);
    padding: 100px 36px 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.inst-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center top, rgba(201, 168, 76, 0.18), transparent 60%);
    pointer-events: none;
}
.inst-hero-inner {
    max-width: 920px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}
.inst-eyebrow {
    text-transform: uppercase;
    letter-spacing: 3px;
    font-size: 11px;
    color: var(--i-gold);
    margin-bottom: 18px;
    font-weight: 700;
}
.inst-hero h1 {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 56px;
    font-weight: 700;
    color: var(--i-gold-bright);
    margin: 0 0 22px;
    line-height: 1.05;
}
.inst-hero-sub {
    color: var(--i-text-muted);
    font-size: 17px;
    line-height: 1.65;
    max-width: 700px;
    margin: 0 auto 32px;
}
.inst-hero-actions {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 24px;
}
.inst-cta {
    padding: 14px 28px;
    border-radius: 9px;
    font-weight: 700;
    font-size: 14.5px;
    cursor: pointer;
    transition: transform 0.15s, box-shadow 0.15s;
    font-family: inherit;
    text-decoration: none;
    display: inline-block;
    border: none;
}
.inst-cta-primary {
    background: linear-gradient(135deg, var(--i-gold), #b08a30);
    color: var(--i-bg);
}
.inst-cta-primary:hover { transform: translateY(-1px); box-shadow: 0 8px 20px rgba(201, 168, 76, 0.5); }
.inst-cta-outline {
    background: transparent;
    color: var(--i-gold-warm);
    border: 1.5px solid var(--i-gold);
    padding: 12.5px 26.5px;
}
.inst-cta-outline:hover { background: rgba(201, 168, 76, 0.12); color: var(--i-gold-bright); }
.inst-hero-meta {
    color: var(--i-text-faint);
    font-size: 13px;
    line-height: 1.6;
}
.inst-hero-meta strong { color: var(--i-gold-warm); }

/* ---- Sections ---- */
.inst-section-title {
    font-family: 'Playfair Display', serif;
    font-size: 36px;
    color: var(--i-gold-bright);
    text-align: center;
    margin: 0 0 12px;
    font-weight: 600;
}
.inst-section-sub {
    text-align: center;
    color: var(--i-text-muted);
    font-size: 15.5px;
    line-height: 1.65;
    max-width: 760px;
    margin: 0 auto 50px;
}

/* ---- Features grid ---- */
.inst-features {
    padding: 90px 36px;
    background: rgba(255, 255, 255, 0.02);
}
.inst-feature-grid {
    max-width: 1180px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(310px, 1fr));
    gap: 22px;
}
.inst-feature {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--i-border);
    border-radius: 12px;
    padding: 26px 24px;
    transition: transform 0.2s, border-color 0.2s;
}
.inst-feature:hover {
    transform: translateY(-2px);
    border-color: var(--i-gold);
}
.inst-feature-icon {
    font-size: 28px;
    margin-bottom: 14px;
}
.inst-feature h3 {
    font-family: 'Playfair Display', serif;
    color: var(--i-gold-bright);
    font-size: 19px;
    margin: 0 0 10px;
}
.inst-feature p {
    margin: 0;
    color: var(--i-text-muted);
    font-size: 14.5px;
    line-height: 1.65;
}
.inst-feature code {
    background: rgba(255, 255, 255, 0.08);
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 12.5px;
    color: var(--i-gold-warm);
    font-family: 'Courier New', monospace;
}

/* ---- Use cases ---- */
.inst-use-cases {
    padding: 90px 36px;
}
.inst-use-grid {
    max-width: 1180px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 22px;
}
.inst-use {
    background: rgba(255, 255, 255, 0.03);
    border-left: 4px solid var(--i-gold);
    padding: 24px;
    border-radius: 8px;
}
.inst-use h3 {
    font-family: 'Playfair Display', serif;
    color: var(--i-gold-warm);
    font-size: 18px;
    margin: 0 0 10px;
}
.inst-use p {
    margin: 0;
    color: var(--i-text-muted);
    font-size: 14px;
    line-height: 1.65;
}

/* ---- Pricing ---- */
.inst-pricing {
    padding: 90px 36px;
    background: rgba(255, 255, 255, 0.02);
}
.inst-pricing-cards {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
    gap: 22px;
    align-items: stretch;
}
.inst-pricing-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--i-border);
    border-radius: 14px;
    padding: 30px;
    display: flex;
    flex-direction: column;
}
.inst-pricing-feature {
    border: 2px solid var(--i-gold);
    background: rgba(201, 168, 76, 0.06);
    transform: scale(1.02);
    box-shadow: 0 8px 32px rgba(201, 168, 76, 0.2);
}
.inst-pricing-tier {
    font-size: 12px;
    color: var(--i-gold);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 700;
    margin-bottom: 8px;
}
.inst-pricing-amount {
    font-family: 'Playfair Display', serif;
    font-size: 42px;
    color: var(--i-gold-bright);
    font-weight: 700;
    margin-bottom: 4px;
}
.inst-pricing-amount span {
    font-size: 16px;
    color: var(--i-text-faint);
    font-weight: 400;
    font-family: 'Inter', sans-serif;
}
.inst-pricing-overage {
    color: var(--i-text-muted);
    font-size: 13px;
    margin-bottom: 18px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--i-border);
}
.inst-pricing-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
    flex: 1;
}
.inst-pricing-card li {
    padding: 8px 0;
    color: var(--i-text-muted);
    font-size: 14px;
    border-bottom: 1px dashed rgba(201, 168, 76, 0.15);
}
.inst-pricing-card li:last-child { border-bottom: none; }
.inst-pricing-card li::before {
    content: "✓ ";
    color: var(--i-gold);
    font-weight: 700;
    margin-right: 4px;
}

/* ---- Chain Architecture ---- */
.inst-chain {
    padding: 90px 36px;
}
.inst-chain-grid {
    max-width: 1080px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}
.inst-chain-grid h3 {
    font-family: 'Playfair Display', serif;
    color: var(--i-gold-warm);
    font-size: 19px;
    margin: 0 0 14px;
}
.inst-chain-grid ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.inst-chain-grid li {
    padding: 10px 0;
    color: var(--i-text-muted);
    font-size: 14.5px;
    line-height: 1.6;
    border-bottom: 1px solid var(--i-border);
}
.inst-chain-grid li:last-child { border-bottom: none; }
.inst-chain-grid li strong { color: var(--i-text); }
.inst-chain-grid code {
    background: rgba(255, 255, 255, 0.08);
    padding: 1px 5px;
    border-radius: 3px;
    font-size: 12.5px;
    color: var(--i-gold-warm);
    font-family: 'Courier New', monospace;
}
.inst-chain-note {
    max-width: 920px;
    margin: 36px auto 0;
    padding: 20px 26px;
    background: rgba(201, 168, 76, 0.06);
    border-left: 4px solid var(--i-gold);
    border-radius: 8px;
    color: var(--i-text-muted);
    font-size: 14.5px;
    line-height: 1.65;
}
.inst-chain-note strong { color: var(--i-gold-warm); }

/* ---- Contact / Application ---- */
.inst-contact {
    padding: 90px 36px;
    background: rgba(255, 255, 255, 0.02);
}
.inst-contact-card {
    max-width: 760px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--i-border);
    border-radius: 14px;
    padding: 36px;
}
.inst-form { display: flex; flex-direction: column; gap: 16px; }
.inst-row { display: flex; gap: 14px; }
.inst-row > label { flex: 1; }
.inst-form label {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 13px;
    color: var(--i-text-muted);
    font-weight: 500;
}
.inst-form input[type="text"],
.inst-form input[type="email"],
.inst-form input[type="tel"],
.inst-form select,
.inst-form textarea {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--i-border);
    color: var(--i-text);
    padding: 11px 13px;
    border-radius: 7px;
    font-size: 14px;
    font-family: inherit;
}
.inst-form input:focus, .inst-form select:focus, .inst-form textarea:focus {
    outline: none;
    border-color: var(--i-gold);
    background: rgba(255, 255, 255, 0.09);
    box-shadow: 0 0 0 3px rgba(201, 168, 76, 0.18);
}
.inst-checkbox {
    flex-direction: row !important;
    align-items: flex-start;
    gap: 10px !important;
    padding: 12px 14px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 7px;
    cursor: pointer;
    line-height: 1.5;
}
.inst-checkbox input { margin-top: 3px; accent-color: var(--i-gold); flex-shrink: 0; }
.inst-msg {
    margin: 0;
    font-size: 13.5px;
    color: var(--i-text-muted);
    min-height: 18px;
    line-height: 1.5;
}
.inst-msg.ok { color: #86efac; }
.inst-msg.err { color: #ff8a8a; }

/* ---- Success state ---- */
.inst-success {
    text-align: center;
    padding: 26px 8px;
}
.inst-success-icon {
    width: 72px; height: 72px;
    border-radius: 50%;
    background: rgba(34, 197, 94, 0.15);
    color: #86efac;
    border: 2px solid #86efac;
    display: flex; align-items: center; justify-content: center;
    font-size: 36px; font-weight: 700;
    margin: 0 auto 22px;
}
.inst-success h2 {
    font-family: 'Playfair Display', serif;
    color: var(--i-gold-bright);
    font-size: 26px;
    margin: 0 0 12px;
}
.inst-success p { color: var(--i-text-muted); margin: 10px 0; }
.inst-success ol {
    text-align: left;
    color: var(--i-text-muted);
    background: rgba(255, 255, 255, 0.03);
    padding: 16px 22px 16px 38px;
    border-radius: 7px;
    border-left: 3px solid var(--i-gold);
    margin: 16px auto;
    max-width: 540px;
}
.inst-success ol li { margin-bottom: 8px; }
.inst-success-anchor {
    background: rgba(201, 168, 76, 0.1);
    border: 1px solid var(--i-gold);
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 13.5px;
    margin-top: 18px !important;
    max-width: 540px;
    margin-left: auto !important;
    margin-right: auto !important;
}
.inst-success-note {
    color: var(--i-text-faint) !important;
    font-size: 12.5px;
    margin-top: 18px !important;
}

/* ---- Footer ---- */
.inst-footer {
    padding: 30px 36px;
    text-align: center;
    border-top: 1px solid var(--i-border);
    color: var(--i-text-faint);
    font-size: 13px;
}
.inst-footer a { color: var(--i-gold); }

/* ---- Responsive ---- */
@media (max-width: 800px) {
    .inst-header { padding: 14px 18px; flex-wrap: wrap; gap: 12px; }
    .inst-nav { gap: 14px; }
    .inst-nav a { font-size: 13px; }
    .inst-hero { padding: 60px 20px 50px; }
    .inst-hero h1 { font-size: 38px; }
    .inst-hero-sub { font-size: 15px; }
    .inst-section-title { font-size: 28px; }
    .inst-features, .inst-use-cases, .inst-pricing, .inst-chain, .inst-contact { padding: 60px 20px; }
    .inst-chain-grid { grid-template-columns: 1fr; gap: 24px; }
    .inst-row { flex-direction: column; gap: 14px; }
    .inst-pricing-feature { transform: none; }
    .inst-contact-card { padding: 24px 18px; }
}