/* =====================================================================
   AITheories.ir — visual identity
   Palette: deep ink night sky + antique gold + warm ivory.
   Rationale: the 50 theories return again and again to light vs.
   darkness, the infinite, the cosmos — a dark ground with gold reads
   as observatory / illuminated manuscript rather than "dark mode".
   ===================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Amiri:ital,wght@0,400;0,700;1,400&family=Playfair+Display:ital,wght@0,400;0,600;0,700;1,400&family=Vazirmatn:wght@400;500;600;700&family=Cairo:wght@400;600;700&family=EB+Garamond:ital,wght@0,400;0,500;0,600;1,400&display=swap');

:root {
    --ink-950: #0a0c11;
    --ink-900: #12151d;
    --ink-800: #1a1e29;
    --surface: #171b25;
    --surface-alt: #1f2430;
    --border: rgba(201, 162, 75, 0.22);
    --border-strong: rgba(201, 162, 75, 0.45);

    --gold: #c9a24b;
    --gold-bright: #e8cd83;
    --gold-dim: #8a7333;
    --gold-wash: rgba(201, 162, 75, 0.10);

    --ivory: #efe7d6;
    --ivory-muted: #a79b84;
    --ivory-faint: #6f6656;

    --wine: #7a2f3a;
    --wine-soft: rgba(122, 47, 58, 0.18);

    --radius: 4px;
    --radius-lg: 6px;
    --shadow-card: 0 1px 2px rgba(0,0,0,0.4);
    --shadow-hover: 0 10px 30px -8px rgba(201, 162, 75, 0.25), 0 2px 8px rgba(0,0,0,0.5);

    --font-fa-display: 'Amiri', 'Vazirmatn', serif;
    --font-fa-body: 'Vazirmatn', Tahoma, sans-serif;
    --font-ar-display: 'Amiri', 'Cairo', serif;
    --font-ar-body: 'Cairo', Tahoma, sans-serif;
    --font-en-display: 'Playfair Display', Georgia, serif;
    --font-en-body: 'EB Garamond', Georgia, serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    background:
        radial-gradient(ellipse 900px 500px at 50% -10%, rgba(201,162,75,0.06), transparent),
        var(--ink-950);
    color: var(--ivory);
    line-height: 1.9;
    font-size: 17px;
    -webkit-font-smoothing: antialiased;
}

body.lang-fa { font-family: var(--font-fa-body); }
body.lang-ar { font-family: var(--font-ar-body); }
body.lang-en { font-family: var(--font-en-body); line-height: 1.75; font-size: 18px; }

body.lang-fa h1, body.lang-fa h2, body.lang-fa .brand, body.lang-fa .eyebrow { font-family: var(--font-fa-display); }
body.lang-ar h1, body.lang-ar h2, body.lang-ar .brand, body.lang-ar .eyebrow { font-family: var(--font-ar-display); }
body.lang-en h1, body.lang-en h2, body.lang-en .brand, body.lang-en .eyebrow { font-family: var(--font-en-display); }

body.rtl { direction: rtl; }
body.ltr { direction: ltr; }

::selection { background: var(--gold-dim); color: var(--ink-950); }

a { color: var(--gold-bright); }

:focus-visible {
    outline: 2px solid var(--gold);
    outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
    * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

.container {
    max-width: 880px;
    margin: 0 auto;
    padding: 0 24px;
}

p { overflow-wrap: break-word; word-break: break-word; }

/* ---------- Header ---------- */
.site-header {
    background: linear-gradient(180deg, var(--ink-900), var(--ink-950));
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 10;
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    padding: 18px 24px;
    gap: 14px;
}
.brand {
    font-weight: 700;
    font-size: 1.4rem;
    color: var(--gold-bright);
    text-decoration: none;
    letter-spacing: 0.3px;
}
.main-nav a {
    color: var(--ivory-muted);
    text-decoration: none;
    margin-inline-end: 22px;
    font-size: 0.85rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    transition: color .15s ease;
}
body.lang-fa .main-nav a, body.lang-ar .main-nav a { text-transform: none; letter-spacing: 0; font-size: 0.95rem; }
.main-nav a:hover { color: var(--gold-bright); }
.lang-switcher { display: flex; gap: 6px; }
.lang-switcher a {
    text-decoration: none;
    color: var(--ivory-faint);
    font-size: 0.78rem;
    padding: 5px 12px;
    border-radius: 999px;
    border: 1px solid transparent;
    transition: all .15s ease;
}
.lang-switcher a:hover { border-color: var(--border-strong); color: var(--ivory); }
.lang-switcher a.active {
    background: var(--gold-wash);
    border-color: var(--border-strong);
    color: var(--gold-bright);
}

/* ---------- Main content ---------- */
.main-content { padding: 56px 24px 70px; }

h1, h2, h3 {
    color: var(--gold-bright);
    line-height: 1.4;
    font-weight: 700;
    margin-top: 0;
    overflow-wrap: break-word;
    word-break: break-word;
    max-width: 100%;
}
h1 { font-size: 2.1rem; margin-bottom: 0.5em; }
body.lang-en h1 { font-style: italic; font-weight: 600; }
h2 { font-size: 1.35rem; margin-bottom: 0.8em; }

.eyebrow {
    display: inline-block;
    color: var(--gold);
    font-size: 0.8rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    margin-bottom: 14px;
}
body.lang-fa .eyebrow, body.lang-ar .eyebrow { letter-spacing: 0; text-transform: none; font-size: 0.95rem; }

/* ---------- Hero / intro ---------- */
.hero {
    text-align: center;
    padding: 10px 0 8px;
    margin-bottom: 8px;
}
.hero p.tagline {
    color: var(--ivory-muted);
    max-width: 620px;
    margin: 0 auto;
    font-size: 1.05rem;
}

/* ---------- Preface (book introduction) ---------- */
.preface {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 38px 42px;
    margin-bottom: 8px;
    box-shadow: var(--shadow-card);
}
.preface h2 { text-align: center; margin-bottom: 22px; }
.preface-text { color: var(--ivory); }
.preface-text::first-letter {
    color: var(--gold);
    font-family: var(--font-en-display);
    font-size: 3rem;
    font-weight: 700;
    float: inline-start;
    line-height: 0.85;
    padding: 0.05em 0.08em 0 0;
    margin-inline-end: 4px;
}
body.lang-fa .preface-text::first-letter,
body.lang-ar .preface-text::first-letter {
    font-family: var(--font-fa-display);
    font-size: 2.4em;
}

/* Signature rosette divider */
.rosette-divider {
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--gold-dim);
    margin: 34px 0 38px;
}
.rosette-divider svg { display: block; }

/* ---------- Theory list ---------- */
.theory-list {
    display: grid;
    gap: 14px;
}
.theory-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 16px 22px;
    text-decoration: none;
    color: var(--ivory);
    display: flex;
    align-items: center;
    gap: 18px;
    box-shadow: var(--shadow-card);
    transition: box-shadow .2s ease, border-color .2s ease, transform .2s ease, background .2s ease;
}
.theory-card:hover {
    box-shadow: var(--shadow-hover);
    border-color: var(--border-strong);
    transform: translateY(-2px);
    background: var(--surface-alt);
}
.theory-card .num {
    flex: 0 0 auto;
    width: 2.5em;
    height: 2.5em;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-strong);
    border-radius: 50%;
    color: var(--gold);
    font-weight: 700;
    font-family: var(--font-en-display);
    font-size: 0.95rem;
}
.theory-card .title {
    flex: 1 1 auto;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

/* ---------- Theory detail ---------- */
.back-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 26px;
    color: var(--gold);
    text-decoration: none;
    font-size: 0.92rem;
    transition: gap .15s ease, color .15s ease;
}
.back-link:hover { color: var(--gold-bright); gap: 10px; }

.theory-meta {
    color: var(--ivory-faint);
    font-size: 0.85rem;
    margin: -10px 0 26px;
    letter-spacing: 0.02em;
}

.theory-content {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px 44px;
    box-shadow: var(--shadow-card);
}
body.lang-en .theory-content { font-size: 1.08rem; }

.theory-content::first-letter {
    color: var(--gold);
    font-family: var(--font-en-display);
    font-size: 3.2em;
    font-weight: 700;
    float: inline-start;
    line-height: 0.85;
    padding: 0.05em 0.08em 0 0;
    margin-inline-end: 4px;
}
body.lang-fa .theory-content::first-letter,
body.lang-ar .theory-content::first-letter {
    font-family: var(--font-fa-display);
    font-size: 2.6em;
}

/* ---------- Comments ---------- */
.comments-section { margin-top: 20px; }
.comment {
    background: var(--surface);
    border: 1px solid var(--border);
    border-inline-start: 3px solid var(--wine);
    border-radius: var(--radius);
    padding: 16px 20px;
    margin-bottom: 12px;
}
.comment .comment-name { font-weight: 700; color: var(--gold-bright); }
.comment .comment-date { color: var(--ivory-faint); font-size: 0.78rem; margin-inline-start: 10px; }
.comment p { margin: 8px 0 0; color: var(--ivory); }

.comment-form {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 26px;
    margin-top: 22px;
}
.comment-form input, .comment-form textarea {
    width: 100%;
    padding: 12px 14px;
    background: var(--ink-900);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 14px;
    font-family: inherit;
    font-size: 1rem;
    color: var(--ivory);
}
.comment-form input:focus, .comment-form textarea:focus {
    outline: none;
    border-color: var(--gold);
}
.comment-form button {
    background: var(--gold);
    color: var(--ink-950);
    border: none;
    padding: 12px 28px;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 1rem;
    font-weight: 700;
    transition: background .15s ease, transform .15s ease;
}
.comment-form button:hover { background: var(--gold-bright); transform: translateY(-1px); }

.success-msg {
    background: rgba(122, 47, 58, 0.15);
    border: 1px solid var(--border-strong);
    color: var(--gold-bright);
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 18px;
}

/* ---------- Contact page ---------- */
.team-box {
    background: var(--wine-soft);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-lg);
    padding: 26px 30px;
    margin-bottom: 32px;
}
.team-box h2 { margin-bottom: 10px; }
.invite-note {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}
.invite-note strong { color: var(--gold-bright); }

.required-note { color: var(--ivory-faint); font-size: 0.82rem; margin: -8px 0 18px; }

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0 20px;
}
@media (max-width: 640px) {
    .contact-grid { grid-template-columns: 1fr; }
}

.contact-form select {
    width: 100%;
    padding: 12px 14px;
    background: var(--ink-900);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 14px;
    font-family: inherit;
    font-size: 1rem;
    color: var(--ivory);
}
.contact-form select:focus { outline: none; border-color: var(--gold); }
.contact-form label {
    display: block;
    font-size: 0.85rem;
    color: var(--ivory-muted);
    margin-bottom: 6px;
}

.contact-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-top: 34px;
}
.contact-info-box {
    text-align: center;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px 20px;
}
.contact-info-box h3 { margin-bottom: 10px; font-size: 1rem; color: var(--gold-bright); }
.contact-info-box a { color: var(--ivory-muted); text-decoration: none; display: block; margin: 3px 0; }
.contact-info-box a:hover { color: var(--gold-bright); }

/* ---------- Stats page ---------- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 16px;
    margin-bottom: 36px;
}
.stat-box {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 26px 20px;
    text-align: center;
}
.stat-box .stat-value {
    font-size: 2.2rem;
    font-weight: 700;
    font-family: var(--font-en-display);
    color: var(--gold);
}
.stat-box .stat-label { color: var(--ivory-muted); font-size: 0.85rem; margin-top: 4px; }

.bar-chart {
    display: flex;
    align-items: flex-end;
    gap: 10px;
    height: 170px;
    margin-top: 24px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px 20px 14px;
}
.bar-chart .bar-col { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: flex-end; height: 100%; }
.bar-chart .bar {
    width: 100%;
    background: linear-gradient(180deg, var(--gold-bright), var(--gold-dim));
    border-radius: 3px 3px 0 0;
    min-height: 2px;
}
.bar-chart .bar-label { font-size: 0.72rem; color: var(--ivory-faint); margin-top: 8px; }

/* ---------- Footer ---------- */
.site-footer {
    border-top: 1px solid var(--border);
    margin-top: 50px;
    padding: 30px 24px;
    text-align: center;
    color: var(--ivory-faint);
    font-size: 0.82rem;
    background: var(--ink-900);
}
.site-footer p { margin: 4px 0; }
.footer-tagline { color: var(--gold-dim); }

/* ---------- Admin ---------- */
.admin-body { background: var(--ink-950); color: var(--ivory); font-family: var(--font-fa-body); }
.admin-login-box {
    max-width: 380px;
    margin: 90px auto;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 34px;
    box-shadow: var(--shadow-card);
}
.admin-login-box h1 { text-align: center; }
.admin-login-box label { color: var(--ivory-muted); font-size: 0.9rem; }
.admin-login-box input {
    width: 100%;
    padding: 12px 14px;
    background: var(--ink-900);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin: 6px 0 16px;
    font-size: 1rem;
    color: var(--ivory);
}
.admin-login-box input:focus { outline: none; border-color: var(--gold); }
.admin-login-box button {
    width: 100%;
    background: var(--gold);
    color: var(--ink-950);
    border: none;
    padding: 13px;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: background .15s ease;
}
.admin-login-box button:hover { background: var(--gold-bright); }

.error-msg {
    background: rgba(122,47,58,0.25);
    border: 1px solid var(--wine);
    color: #e8b3ba;
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 18px;
}
.admin-topbar {
    background: var(--ink-900);
    border-bottom: 1px solid var(--border);
    color: var(--ivory);
    padding: 16px 28px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.admin-topbar strong { color: var(--gold-bright); }
.admin-topbar a { color: var(--ivory-muted); text-decoration: none; font-size: 0.9rem; }
.admin-topbar a:hover { color: var(--gold-bright); }
.admin-wrap { max-width: 1020px; margin: 34px auto; padding: 0 24px; }
.admin-wrap h2 { color: var(--ivory-muted); font-size: 1rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; }
.theory-select {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(76px, 1fr));
    gap: 8px;
    margin-bottom: 28px;
}
.theory-select a {
    display: block;
    text-align: center;
    padding: 10px 4px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-decoration: none;
    color: var(--ivory-muted);
    font-size: 0.88rem;
    transition: all .12s ease;
}
.theory-select a:hover { border-color: var(--border-strong); color: var(--ivory); }
.theory-select a.active { background: var(--gold); color: var(--ink-950); font-weight: 700; border-color: var(--gold); }
.lang-tabs { display: flex; gap: 6px; margin-bottom: 0; }
.lang-tabs a {
    padding: 10px 22px;
    border-radius: var(--radius) var(--radius) 0 0;
    text-decoration: none;
    color: var(--ivory-muted);
    background: var(--ink-900);
    font-size: 0.9rem;
    border: 1px solid var(--border);
    border-bottom: none;
}
.lang-tabs a.active { background: var(--surface); font-weight: 700; color: var(--gold-bright); }
.admin-form {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 0 var(--radius-lg) var(--radius-lg) var(--radius-lg);
    padding: 28px;
}
.admin-form label { display: block; font-weight: 700; margin-bottom: 8px; color: var(--ivory-muted); font-size: 0.9rem; }
.admin-form input[type=text] {
    width: 100%;
    padding: 12px 14px;
    background: var(--ink-900);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 20px;
    font-size: 1.05rem;
    font-family: inherit;
    color: var(--ivory);
}
.admin-form textarea {
    width: 100%;
    min-height: 340px;
    padding: 14px;
    background: var(--ink-900);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 20px;
    font-size: 1rem;
    font-family: inherit;
    line-height: 1.8;
    color: var(--ivory);
}
.admin-form input[type=text]:focus, .admin-form textarea:focus { outline: none; border-color: var(--gold); }
.admin-form button {
    background: var(--gold);
    color: var(--ink-950);
    border: none;
    padding: 13px 34px;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: background .15s ease;
}
.admin-form button:hover { background: var(--gold-bright); }
.saved-msg {
    background: rgba(201,162,75,0.12);
    border: 1px solid var(--border-strong);
    color: var(--gold-bright);
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 18px;
}

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
    .header-inner { flex-direction: column; align-items: flex-start; }
    .main-nav a { margin-inline-end: 14px; }
    h1 { font-size: 1.7rem; }
    .theory-content { padding: 28px 22px; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
}