/* Varblo web portal — shared styles. Vanilla CSS, no frameworks, no build step. */

:root {
  color-scheme: light dark;
  --bg: #f4f6f9;
  --card: #ffffff;
  --text: #1b2430;
  --muted: #5c6b7c;
  --border: #dde3ea;
  --accent: #3563e9;
  --accent-hover: #2b53c7;
  --accent-text: #ffffff;
  --ok: #17803d;
  --ok-bg: #e2f5e9;
  --warn: #9a6700;
  --warn-bg: #fff3d6;
  --fail: #c62f2f;
  --fail-bg: #fde4e4;
  --info: #2b5fd9;
  --info-bg: #e4ecfd;
  --neutral: #5c6b7c;
  --neutral-bg: #e9edf2;
  --code-bg: #f0f2f6;
  --apple-bg: #000000;
  --apple-text: #ffffff;
  --shadow: 0 1px 3px rgba(16, 24, 40, 0.08), 0 4px 16px rgba(16, 24, 40, 0.06);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #10151c;
    --card: #1a212b;
    --text: #e7ecf2;
    --muted: #94a3b5;
    --border: #2b3542;
    --accent: #5b8bff;
    --accent-hover: #7aa1ff;
    --accent-text: #0c1320;
    --ok: #4ade80;
    --ok-bg: #14301f;
    --warn: #fbbf24;
    --warn-bg: #33260a;
    --fail: #f87171;
    --fail-bg: #3a1414;
    --info: #93b4ff;
    --info-bg: #17233d;
    --neutral: #94a3b5;
    --neutral-bg: #232c38;
    --code-bg: #141a22;
    --apple-bg: #ffffff;
    --apple-text: #000000;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  font-size: 16px;
}

[hidden] { display: none !important; }

code, pre {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.88em;
}

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

h1, h2, h3, h4 { line-height: 1.25; margin: 0 0 0.5rem; }
h1 { font-size: 2rem; }
h2 { font-size: 1.35rem; }
h3 { font-size: 1.1rem; }
h4 { font-size: 0.95rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); }
p { margin: 0 0 0.9rem; }

.muted { color: var(--muted); }
.small { font-size: 0.85rem; }

.wrap {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* ------------------------------------------------------------- header/nav */

.site-header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  padding-top: 0.6rem;
  padding-bottom: 0.6rem;
}

.brand {
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-decoration: none;
  color: var(--text);
}

.brand span { color: var(--accent); }

.site-nav {
  display: flex;
  gap: 0.9rem;
  flex-wrap: wrap;
  margin-right: auto;
}

.site-nav a {
  text-decoration: none;
  color: var(--muted);
  font-weight: 500;
  padding: 0.2rem 0;
}

.site-nav a:hover { color: var(--text); }
.site-nav a.active { color: var(--accent); }

.userbox {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.9rem;
}

/* ------------------------------------------------------------------ cards */

main.wrap { padding-top: 1.5rem; padding-bottom: 3rem; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: 1.25rem;
  margin-bottom: 1.25rem;
}

.card > :last-child { margin-bottom: 0; }

/* ------------------------------------------------------------------ forms */

label { display: block; font-weight: 600; font-size: 0.9rem; margin-bottom: 0.25rem; }

input[type="text"],
input[type="password"],
input[type="file"],
select,
textarea {
  width: 100%;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font: inherit;
}

input:focus, select:focus, textarea:focus, button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

textarea { min-height: 5rem; resize: vertical; }

.stack > * + * { margin-top: 0.7rem; }

.row {
  display: flex;
  gap: 0.6rem;
  align-items: center;
  flex-wrap: wrap;
}

.row-between { justify-content: space-between; }

.field-inline { flex: 1 1 200px; }

/* ---------------------------------------------------------------- buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card);
  color: var(--text);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

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

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-text);
}

.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: var(--accent-text);
}

.btn-danger {
  background: var(--fail);
  border-color: var(--fail);
  color: #ffffff;
}

.btn-danger:hover { background: var(--fail); color: #ffffff; opacity: 0.88; }

.btn-small { padding: 0.25rem 0.6rem; font-size: 0.85rem; }

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.btn:disabled:hover { border-color: var(--border); color: inherit; }

.btn-apple {
  width: 100%;
  background: var(--apple-bg);
  color: var(--apple-text);
  border-color: var(--apple-bg);
}

.btn-apple:disabled:hover { border-color: var(--apple-bg); color: var(--apple-text); }

/* ----------------------------------------------------------------- badges */

.badge {
  display: inline-block;
  padding: 0.1rem 0.65rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  white-space: nowrap;
  background: var(--neutral-bg);
  color: var(--neutral);
}

.badge-info { background: var(--info-bg); color: var(--info); }
.badge-error { background: var(--fail-bg); color: var(--fail); }

.st-checking, .st-pending_review { background: var(--info-bg); color: var(--info); }
.st-awaiting_admin, .st-open { background: var(--warn-bg); color: var(--warn); }
.st-approved, .st-published, .st-resolved { background: var(--ok-bg); color: var(--ok); }
.st-rejected { background: var(--fail-bg); color: var(--fail); }

.res-pass { background: var(--ok-bg); color: var(--ok); }
.res-warn { background: var(--warn-bg); color: var(--warn); }
.res-fail { background: var(--fail-bg); color: var(--fail); }

/* ----------------------------------------------------------------- alerts */

.alert {
  padding: 0.65rem 0.9rem;
  border-radius: 8px;
  margin: 0 0 0.9rem;
  font-size: 0.92rem;
  border: 1px solid transparent;
}

.alert-error { background: var(--fail-bg); color: var(--fail); border-color: var(--fail); }
.alert-success { background: var(--ok-bg); color: var(--ok); border-color: var(--ok); }
.alert-info { background: var(--info-bg); color: var(--info); border-color: var(--info); }

/* ----------------------------------------------------------------- tables */

.table-wrap { overflow-x: auto; }

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.table th, .table td {
  text-align: left;
  padding: 0.5rem 0.7rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.table th {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.table tbody tr:last-child td { border-bottom: none; }

tr.clickable { cursor: pointer; }
tr.clickable:hover td { background: var(--neutral-bg); }

/* ------------------------------------------------------------------- misc */

.divider {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--muted);
  font-size: 0.85rem;
  margin: 1rem 0;
}

.divider::before, .divider::after {
  content: "";
  flex: 1;
  border-top: 1px solid var(--border);
}

.progress {
  height: 10px;
  border-radius: 999px;
  background: var(--neutral-bg);
  overflow: hidden;
  margin-bottom: 0.4rem;
}

.progress-bar {
  height: 100%;
  width: 0%;
  background: var(--accent);
  border-radius: 999px;
  transition: width 0.15s ease;
}

.code-block {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.8rem;
  overflow-x: auto;
  margin: 0.5rem 0 0.9rem;
  white-space: pre;
  max-height: 28rem;
  overflow-y: auto;
}

details.file-details {
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 0.6rem;
  background: var(--bg);
}

details.file-details > summary {
  cursor: pointer;
  padding: 0.55rem 0.8rem;
  font-weight: 600;
}

details.file-details[open] > summary { border-bottom: 1px solid var(--border); }

details.file-details .code-block {
  margin: 0;
  border: none;
  border-radius: 0 0 8px 8px;
}

.problem-list { margin: 0.3rem 0 0.9rem; padding-left: 1.3rem; }
.problem-list li { margin-bottom: 0.25rem; }

/* ------------------------------------------------------------- login card */

.login-card { max-width: 430px; margin: 2.5rem auto; }

/* ------------------------------------------------------------------- tabs */

.tabs {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
}

.tab-btn {
  padding: 0.45rem 1rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--card);
  color: var(--muted);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.tab-btn:hover { color: var(--text); }

.tab-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-text);
}

/* ------------------------------------------------------------------ stats */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 0.9rem;
}

.stat {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.8rem 1rem;
}

.stat-value { font-size: 1.8rem; font-weight: 800; line-height: 1.2; }
.stat-label { color: var(--muted); font-size: 0.83rem; }

/* ------------------------------------------------------- submission cards */

.sub-head {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  flex-wrap: wrap;
}

.sub-head .slug { font-weight: 700; font-size: 1.05rem; }

.sub-meta { color: var(--muted); font-size: 0.85rem; }

.review-desc { font-size: 1rem; }

.detail-meta {
  display: flex;
  gap: 1.2rem;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 0.87rem;
  margin-bottom: 0.9rem;
}

.actions {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin: 0.9rem 0;
}

/* ---------------------------------------------------------- landing page */

.hero {
  text-align: center;
  padding: 3rem 0 2rem;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  letter-spacing: -0.03em;
  margin-bottom: 0.8rem;
}

.hero h1 span { color: var(--accent); }

.hero p {
  max-width: 620px;
  margin: 0 auto 1.4rem;
  font-size: 1.1rem;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  gap: 0.8rem;
  justify-content: center;
  flex-wrap: wrap;
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.feature-icon { font-size: 1.7rem; margin-bottom: 0.4rem; }

.steps { margin: 0; padding-left: 1.4rem; }
.steps li { margin-bottom: 0.8rem; }

.portal-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}

.site-footer {
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.85rem;
  padding: 1.2rem 0 2rem;
  text-align: center;
}

@media (max-width: 560px) {
  .header-inner { gap: 0.5rem; }
  .card { padding: 1rem; }
}