:root {
    /* Warm, paper-like neutrals - one hue family, not mixed warm/cool grays */
    --bg: #f6efe3;
    --bg-alt: #efe4d2;
    --surface: #fffbf3;
    --surface-raised: #fffefb;
    --ink: #2a231d;
    --ink-soft: #71624f;
    --ink-faint: #a3937c;
    --border: #e6d8c2;
    --border-soft: #efe4d2;

    /* One accent, desaturated terracotta - not a saturated "AI pink" */
    --accent: #b5482f;
    --accent-hover: #9c3c26;
    --accent-soft: #f2ded3;
    --accent-ink: #7a2f1d;

    --shadow-tint: 43, 27, 14;

    --radius-lg: 22px;
    --radius-md: 15px;
    --radius-sm: 9px;

    --font-display: "Fraunces", Georgia, "Times New Roman", serif;
    --font-body: "Outfit", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
    margin: 0;
    font-family: var(--font-body);
    font-variant-numeric: tabular-nums;
    background: var(--bg);
    color: var(--ink);
    -webkit-tap-highlight-color: transparent;
}

a { color: inherit; }

:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
    border-radius: 4px;
}

h1, h2, h3 {
    font-family: var(--font-display);
    font-weight: 600;
    letter-spacing: -0.01em;
    text-wrap: balance;
    margin: 0;
}

.topnav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.85rem 1.25rem;
    background: color-mix(in srgb, var(--surface) 92%, transparent);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-soft);
    position: sticky;
    top: 0;
    z-index: 10;
}

.brand {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.15rem;
    color: var(--accent);
    text-decoration: none;
    letter-spacing: -0.01em;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.1rem;
    font-size: 0.88rem;
}

.nav-links a {
    color: var(--ink-soft);
    text-decoration: none;
    padding: 0.3rem 0;
    border-bottom: 2px solid transparent;
    transition: color 180ms ease, border-color 180ms ease;
}

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

.nav-links a.active {
    color: var(--accent-ink);
    border-bottom-color: var(--accent);
    font-weight: 500;
}

.nav-user {
    color: var(--ink-faint);
    font-size: 0.82rem;
}

.link-button {
    background: none;
    border: none;
    color: var(--ink-faint);
    font: inherit;
    cursor: pointer;
    padding: 0;
    transition: color 180ms ease;
}

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

.inline-form { display: inline; }

.content {
    max-width: 960px;
    margin: 0 auto;
    padding: 1.5rem 1.25rem 4rem;
}

.hint {
    color: var(--ink-soft);
    font-size: 0.86rem;
    margin-top: 0.15rem;
    line-height: 1.5;
}

.error {
    background: var(--accent-soft);
    color: var(--accent-ink);
    padding: 0.65rem 0.9rem;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
}

/* Login */
.login-wrap {
    max-width: 380px;
    margin: 4rem auto 0;
    text-align: center;
}

.app-title {
    font-family: var(--font-display);
    color: var(--accent);
    font-size: 2.4rem;
    font-weight: 600;
}

.app-subtitle { color: var(--ink-soft); margin-top: 0.35rem; }

.login-form {
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
    margin-top: 1.75rem;
    text-align: left;
}

.login-form label {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    font-size: 0.85rem;
    color: var(--ink-soft);
}

input, textarea {
    font: inherit;
    padding: 0.65rem 0.8rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface);
    color: var(--ink);
    resize: vertical;
    transition: border-color 180ms ease, box-shadow 180ms ease;
}

input:focus, textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
}

textarea { min-height: 4.5rem; width: 100%; line-height: 1.5; }

button {
    font: inherit;
    font-weight: 500;
    background: var(--accent);
    color: #fffaf3;
    border: none;
    padding: 0.65rem 1.1rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background 180ms ease, transform 100ms ease, box-shadow 180ms ease;
    box-shadow: 0 6px 16px -8px rgba(var(--shadow-tint), 0.55);
}

button:hover { background: var(--accent-hover); }
button:active { transform: scale(0.98); }

button.secondary {
    background: var(--surface);
    color: var(--ink);
    border: 1px solid var(--border);
    box-shadow: none;
}

button.secondary:hover { background: var(--bg-alt); }

button.danger {
    background: var(--surface);
    color: var(--accent-ink);
    border: 1px solid var(--accent-soft);
    box-shadow: none;
}

button.danger:hover { background: var(--accent-soft); }

/* Submit page */
.submit-section {
    background: var(--surface);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    margin-bottom: 1.1rem;
    box-shadow: 0 10px 30px -20px rgba(var(--shadow-tint), 0.4);
}

.submit-section h2 { font-size: 1.05rem; margin-bottom: 0.2rem; }

.entry-card { margin: 0.9rem 0; }

.edit-form, .new-entry-form {
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
}

.entry-actions { display: flex; gap: 0.5rem; }

/* Board */
.board-intro { margin-bottom: 2rem; }

.eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.14em;
    font-size: 0.72rem;
    color: var(--accent-ink);
    font-weight: 500;
    margin: 0 0 0.3rem;
}

.board-intro h1 { font-size: 2rem; }

.empty-state {
    background: var(--surface);
    border: 1px dashed var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem 1.5rem;
    text-align: center;
    color: var(--ink-soft);
}

.empty-state p:first-child { color: var(--ink); font-weight: 500; margin: 0 0 0.35rem; }

.board-day { margin-bottom: 2.75rem; }

.day-header {
    display: flex;
    align-items: baseline;
    gap: 0.6rem;
    border-bottom: 1px solid var(--border);
    padding-bottom: 0.5rem;
    margin-bottom: 1.1rem;
}

.day-name { font-family: var(--font-display); font-size: 1.25rem; font-weight: 600; }
.day-date {
    color: var(--ink-faint);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.subject-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

@media (min-width: 720px) {
    .subject-grid { grid-template-columns: 1fr 1fr; gap: 1.75rem; }
}

.subject-column { display: flex; flex-direction: column; gap: 0.85rem; }

.subject-header {
    font-family: var(--font-body);
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent-ink);
    margin: 0 0 0.1rem;
}

.column-empty {
    color: var(--ink-faint);
    font-size: 0.85rem;
    font-style: italic;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-md);
    padding: 1rem 1.1rem;
    box-shadow: 0 8px 22px -18px rgba(var(--shadow-tint), 0.5);
    transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 28px -18px rgba(var(--shadow-tint), 0.6);
}

.card-meta {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.74rem;
    color: var(--ink-faint);
    margin-bottom: 0.45rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.card-icon { color: var(--accent); font-size: 0.7rem; }

.card-kind { flex: 1; }

.card-body {
    margin: 0;
    white-space: pre-wrap;
    line-height: 1.55;
    max-width: 62ch;
}

.card-guess {
    background: var(--surface-raised);
    border-style: dashed;
    border-color: var(--border);
}

.card-guess .card-body { font-style: italic; color: var(--ink); }

.card.matched {
    border-color: var(--accent);
    box-shadow: 0 10px 26px -16px rgba(var(--shadow-tint), 0.65), 0 0 0 1px var(--accent-soft) inset;
}

.match-check {
    color: var(--accent);
    font-weight: 700;
    font-size: 0.9rem;
}

.match-strip {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    margin-top: 0.75rem;
    padding: 0.6rem 0.75rem;
    background: var(--accent-soft);
    color: var(--accent-ink);
    border-radius: var(--radius-sm);
    font-size: 0.83rem;
    line-height: 1.45;
}

.match-strip em { font-style: italic; }

/* Admin review */
.review-card {
    background: var(--surface);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-lg);
    padding: 1.1rem;
    margin-bottom: 1rem;
    box-shadow: 0 10px 26px -20px rgba(var(--shadow-tint), 0.45);
}

.review-card.unreviewed { border-left: 3px solid var(--accent); }

.review-pair {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.85rem;
    margin-bottom: 0.85rem;
}

@media (min-width: 700px) { .review-pair { grid-template-columns: 1fr 1fr; } }

.review-entry .card-type {
    font-size: 0.72rem;
    color: var(--ink-faint);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.review-verdict {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    font-size: 0.87rem;
    margin-bottom: 0.85rem;
    color: var(--ink-soft);
}

.review-verdict strong { color: var(--ink); }

.reasoning { color: var(--ink-faint); font-style: italic; }

.review-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; }