/* =========================================================
   BitCampux — tokens de diseño
   Concepto: biblioteca de fichas de catálogo + terminal de código
   ========================================================= */
:root {
    --ink: #12141c;
    --panel: #1b1e2a;
    --panel-2: #212532;
    --line: #2e3242;
    --paper: #e8e6df;
    --paper-dim: #9a9aa5;
    --gold: #c9a227;
    --gold-dim: #8f7420;
    --code-green: #6fcf97;
    --danger: #e0685a;

    --serif: "Iowan Old Style", "Palatino Linotype", Georgia, "Times New Roman", serif;
    --sans: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --mono: ui-monospace, "SF Mono", "Cascadia Code", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--ink);
    color: var(--paper);
    font-family: var(--sans);
    line-height: 1.5;
}

a { color: var(--gold); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3 { font-family: var(--serif); font-weight: 600; letter-spacing: 0.2px; }

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

button:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible {
    outline: 2px solid var(--gold);
    outline-offset: 2px;
}

/* ---------------- Layout general ---------------- */
.page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 28px;
    border-bottom: 1px solid var(--line);
    background: var(--panel);
}

.brand {
    display: flex;
    align-items: baseline;
    gap: 10px;
}

.brand .mark {
    font-family: var(--mono);
    color: var(--gold);
    font-size: 13px;
    letter-spacing: 2px;
    border: 1px solid var(--gold-dim);
    padding: 2px 6px;
    border-radius: 3px;
}

.brand .name {
    font-family: var(--serif);
    font-size: 20px;
    font-weight: 700;
}

.brand .tagline {
    color: var(--paper-dim);
    font-size: 13px;
    font-style: italic;
}

.nav-links { display: flex; gap: 18px; align-items: center; font-size: 14px; }
.nav-links .role-tag {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--gold);
    border: 1px solid var(--gold-dim);
    padding: 2px 6px;
    border-radius: 3px;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 40px 24px;
    width: 100%;
    flex: 1;
}

.container.narrow { max-width: 460px; }

/* ---------------- Fichas de catálogo (signature element) ---------------- */
.catalog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 20px;
    margin-top: 24px;
}

.catalog-card {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 18px 20px;
    position: relative;
    transition: border-color 0.15s ease, transform 0.15s ease;
}

.catalog-card::before {
    content: "";
    position: absolute;
    top: 0; left: 24px;
    width: 1px; height: 100%;
    background: repeating-linear-gradient(to bottom, var(--line) 0 6px, transparent 6px 12px);
    opacity: 0.5;
}

.catalog-card:hover {
    border-color: var(--gold-dim);
    transform: translateY(-2px);
}

.catalog-card .call-number {
    font-family: var(--mono);
    font-size: 12px;
    color: var(--gold);
    letter-spacing: 1px;
}

.catalog-card h3 {
    margin: 6px 0 4px;
    font-size: 18px;
}

.catalog-card p {
    color: var(--paper-dim);
    font-size: 13.5px;
    margin: 0 0 12px;
    min-height: 18px;
}

.catalog-card .meta {
    display: flex;
    justify-content: space-between;
    font-family: var(--mono);
    font-size: 11.5px;
    color: var(--paper-dim);
    border-top: 1px dashed var(--line);
    padding-top: 10px;
}

/* ---------------- Formularios / paneles ---------------- */
.panel {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 28px;
}

label {
    display: block;
    font-size: 13px;
    color: var(--paper-dim);
    margin-bottom: 6px;
    margin-top: 16px;
}
label:first-of-type { margin-top: 0; }

input[type="text"], input[type="email"], input[type="password"], input[type="number"],
textarea, select {
    width: 100%;
    background: var(--ink);
    border: 1px solid var(--line);
    color: var(--paper);
    padding: 10px 12px;
    border-radius: 4px;
    font-family: var(--sans);
    font-size: 14px;
}

textarea.code {
    font-family: var(--mono);
    font-size: 13px;
    min-height: 220px;
    resize: vertical;
}

input[type="file"] { color: var(--paper-dim); font-size: 13px; margin-top: 4px; }

.checkbox-row { display: flex; align-items: center; gap: 8px; margin-top: 16px; }
.checkbox-row input { width: auto; }
.checkbox-row label { margin: 0; color: var(--paper); }

.btn {
    display: inline-block;
    background: var(--gold);
    color: var(--ink);
    border: none;
    padding: 10px 20px;
    border-radius: 4px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    margin-top: 20px;
}
.btn:hover { background: #ddb52f; text-decoration: none; }
.btn.secondary { background: transparent; border: 1px solid var(--line); color: var(--paper); }
.btn.secondary:hover { border-color: var(--gold-dim); background: transparent; }
.btn.danger { background: var(--danger); color: white; }

.form-footer {
    margin-top: 22px;
    font-size: 13.5px;
    color: var(--paper-dim);
}

.alert {
    padding: 12px 16px;
    border-radius: 4px;
    font-size: 14px;
    margin-bottom: 20px;
}
.alert.success { background: rgba(111, 207, 151, 0.12); border: 1px solid var(--code-green); color: var(--code-green); }
.alert.error { background: rgba(224, 104, 90, 0.12); border: 1px solid var(--danger); color: var(--danger); }

/* ---------------- Tabla de archivos (estilo terminal) ---------------- */
.file-table {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--mono);
    font-size: 13px;
    margin-top: 20px;
}
.file-table th {
    text-align: left;
    color: var(--paper-dim);
    font-weight: 500;
    border-bottom: 1px solid var(--line);
    padding: 8px 10px;
}
.file-table td {
    padding: 8px 10px;
    border-bottom: 1px solid var(--line);
}
.file-table tr:hover td { background: var(--panel-2); }

.section-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 40px;
    margin-bottom: 4px;
}

.eyebrow {
    font-family: var(--mono);
    font-size: 12px;
    color: var(--gold);
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

.empty-state {
    border: 1px dashed var(--line);
    border-radius: 6px;
    padding: 40px;
    text-align: center;
    color: var(--paper-dim);
    margin-top: 20px;
}

.admin-table { width: 100%; border-collapse: collapse; margin-top: 20px; font-size: 14px; }
.admin-table th { text-align: left; color: var(--paper-dim); font-weight: 500; padding: 10px; border-bottom: 1px solid var(--line); }
.admin-table td { padding: 10px; border-bottom: 1px solid var(--line); }

.tabs { display: flex; gap: 4px; margin-top: 20px; border-bottom: 1px solid var(--line); }
.tabs a {
    padding: 8px 16px;
    color: var(--paper-dim);
    font-size: 13.5px;
    border-bottom: 2px solid transparent;
}
.tabs a.active { color: var(--gold); border-color: var(--gold); }

footer.site-footer {
    text-align: center;
    font-size: 12px;
    color: var(--paper-dim);
    padding: 20px;
    border-top: 1px solid var(--line);
}