:root {
  --bg: #0f0f11;
  --bg-elevated: #18181b;
  --bg-card: #1c1c20;
  --ink: #f1f1f3;
  --muted: #a1a1aa;
  --line: rgba(255, 255, 255, 0.08);
  --accent: #22c55e;
  --accent-dark: #16a34a;
  --error: #ef4444;
  --radius: 12px;
  --radius-sm: 8px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
}

body {
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}

.page-shell {
  max-width: 960px;
  margin: 0 auto;
  padding: 24px;
}

/* Header */
.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0 32px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 32px;
}

.brand {
  font-size: 1.25rem;
  font-weight: 700;
  text-decoration: none;
  color: var(--ink);
  letter-spacing: -0.02em;
}

.nav {
  display: flex;
  gap: 24px;
}

.nav a {
  text-decoration: none;
  color: var(--muted);
  font-size: 0.95rem;
  transition: color 0.15s;
}

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

/* Hero */
.hero-clean {
  text-align: center;
  padding: 48px 0 64px;
}

.hero-clean h1 {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--muted);
  max-width: 560px;
  margin: 0 auto 32px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Buttons */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  border: 1px solid var(--line);
  background: var(--bg-elevated);
  color: var(--ink);
  cursor: pointer;
  transition: all 0.15s;
}

.button:hover {
  background: var(--bg-card);
  border-color: rgba(255, 255, 255, 0.15);
}

.button-primary {
  background: var(--accent);
  color: #000;
  border-color: var(--accent);
  font-weight: 600;
}

.button-primary:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
}

.button-outline {
  background: transparent;
  border-color: var(--line);
}

.button-quiet {
  background: rgba(255, 255, 255, 0.04);
}

.button-lg {
  padding: 14px 28px;
  font-size: 1rem;
}

/* Landing */
.landing-hero {
  position: relative;
  overflow: hidden;
  padding: 20px 0 12px;
}

.landing-hero::before,
.landing-hero::after {
  content: "";
  position: absolute;
  border-radius: 999px;
  filter: blur(30px);
  opacity: 0.45;
  pointer-events: none;
}

.landing-hero::before {
  width: 320px;
  height: 320px;
  top: -80px;
  left: -70px;
  background: rgba(34, 197, 94, 0.16);
}

.landing-hero::after {
  width: 280px;
  height: 280px;
  right: -50px;
  bottom: -40px;
  background: rgba(245, 158, 11, 0.12);
}

.landing-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(320px, 0.95fr);
  gap: 24px;
  align-items: stretch;
}

.landing-copy {
  padding: 32px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 28px;
  background:
    radial-gradient(circle at top left, rgba(34, 197, 94, 0.18), transparent 36%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.015)),
    var(--bg-elevated);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
}

.landing-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  padding: 7px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
  color: #d4d4d8;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.11em;
}

.landing-copy h1 {
  max-width: 22ch;
  margin-bottom: 18px;
  font-size: clamp(1.95rem, 4.3vw, 3.3rem);
  line-height: 1.1;
  letter-spacing: -0.05em;
  text-wrap: balance;
}

.landing-copy h1 span {
  color: #a3e635;
  white-space: nowrap;
}

.landing-lead {
  max-width: 58ch;
  margin-bottom: 28px;
  color: #d4d4d8;
  font-size: 1.08rem;
  line-height: 1.75;
}

.landing-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.landing-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 22px;
}

.landing-link-card {
  display: grid;
  gap: 14px;
  padding: 18px 20px;
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.015));
  text-decoration: none;
  color: var(--ink);
  transition: transform 0.16s ease, border-color 0.16s ease, box-shadow 0.16s ease;
}

.landing-link-card:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.18);
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.24);
}

.landing-link-card-sponsor {
  background:
    radial-gradient(circle at top left, rgba(163, 230, 53, 0.18), transparent 42%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.015)),
    var(--bg-card);
}

.landing-link-card-telegram {
  background:
    radial-gradient(circle at top left, rgba(56, 189, 248, 0.18), transparent 42%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.015)),
    var(--bg-card);
}

.landing-link-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.landing-link-brand-mark,
.landing-link-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.landing-link-brand-mark {
  gap: 4px;
}

.landing-link-brand-mark span {
  display: block;
  width: 9px;
  border-radius: 999px;
  background: linear-gradient(180deg, #bef264, #65a30d);
}

.landing-link-brand-mark span:nth-child(1) {
  height: 24px;
}

.landing-link-brand-mark span:nth-child(2) {
  height: 32px;
}

.landing-link-brand-mark span:nth-child(3) {
  height: 18px;
}

.landing-link-icon svg {
  width: 28px;
  height: 28px;
  fill: #38bdf8;
}

.landing-link-brand-text {
  display: grid;
  gap: 4px;
  min-width: 0;
}

.landing-link-brand-label {
  color: var(--muted);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.landing-link-brand-text strong {
  font-size: 1.15rem;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.landing-link-copy {
  display: grid;
  gap: 4px;
}

.landing-link-title {
  font-size: 1rem;
  font-weight: 700;
}

.landing-link-note {
  color: #d4d4d8;
  font-size: 0.93rem;
  line-height: 1.55;
}

.landing-side {
  display: grid;
  gap: 16px;
}

.landing-side-card {
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.015));
}

.landing-side-accent {
  background:
    linear-gradient(180deg, rgba(245, 158, 11, 0.13), rgba(245, 158, 11, 0.03) 42%, rgba(255, 255, 255, 0.02)),
    var(--bg-card);
}

.landing-side-label {
  margin-bottom: 14px;
  color: #f4f4f5;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.11em;
}

.landing-side-list {
  list-style: none;
  display: grid;
  gap: 12px;
  padding: 0;
}

.landing-side-list li {
  color: #d4d4d8;
  font-size: 0.95rem;
}

.landing-metrics {
  display: grid;
  gap: 12px;
}

.landing-metrics div {
  display: grid;
  gap: 3px;
  padding: 12px 14px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.landing-metrics strong {
  font-size: 1rem;
  color: var(--ink);
}

.landing-metrics span {
  color: var(--muted);
  font-size: 0.88rem;
}

.landing-band {
  margin: 22px 0 18px;
}

.landing-band-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.landing-band-item {
  display: grid;
  gap: 6px;
  padding: 18px 20px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.03);
}

.landing-band-value {
  color: var(--ink);
  font-size: 1rem;
  font-weight: 700;
}

.landing-band-text {
  color: var(--muted);
  font-size: 0.9rem;
}

.landing-section {
  margin-top: 18px;
  padding: 30px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 28px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.015));
}

.landing-section-head {
  margin-bottom: 22px;
}

.landing-section-head h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.landing-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.landing-card {
  padding: 20px;
  border-radius: 20px;
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.landing-card h3 {
  margin-bottom: 8px;
  font-size: 1.05rem;
}

.landing-card p {
  color: var(--muted);
  font-size: 0.95rem;
}

.landing-section-steps {
  background:
    linear-gradient(180deg, rgba(34, 197, 94, 0.08), transparent 22%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.015));
}

.landing-steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.landing-step {
  min-height: 100%;
  padding: 18px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.landing-step-index {
  display: inline-block;
  margin-bottom: 14px;
  color: #a3e635;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.landing-step h3 {
  margin-bottom: 8px;
  font-size: 1.02rem;
}

.landing-step p {
  color: var(--muted);
  font-size: 0.92rem;
}

.landing-tech-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.landing-tech-grid article {
  padding: 18px 20px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.landing-tech-grid h3 {
  margin-bottom: 8px;
  font-size: 1rem;
}

.landing-tech-grid p {
  color: var(--muted);
  font-size: 0.93rem;
}

.landing-cta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  margin-top: 18px;
  padding: 28px 30px;
  border-radius: 28px;
  background:
    linear-gradient(135deg, rgba(163, 230, 53, 0.16), rgba(34, 197, 94, 0.04) 45%, rgba(255, 255, 255, 0.03)),
    var(--bg-elevated);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.landing-cta h2 {
  font-size: clamp(1.4rem, 2.6vw, 2rem);
  line-height: 1.15;
  letter-spacing: -0.03em;
}

/* Features */
.features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 48px;
}

.feature {
  background: var(--bg-elevated);
  padding: 28px;
}

.feature h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.feature p {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.5;
}

/* How it works */
.how-it-works {
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 48px;
}

.how-it-works h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.steps-list {
  counter-reset: step;
  list-style: none;
  padding: 0;
  display: grid;
  gap: 16px;
}

.steps-list li {
  position: relative;
  padding-left: 40px;
  color: var(--muted);
  font-size: 0.95rem;
}

.steps-list li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 24px;
  height: 24px;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--ink);
}

.steps-list strong {
  color: var(--ink);
  font-weight: 500;
}

/* Tech */
.tech {
  margin-bottom: 48px;
}

.tech h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.tech-grid > div {
  background: var(--bg-elevated);
  padding: 24px;
}

.tech-grid h4 {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--ink);
}

.tech-grid p {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.5;
}

/* CTA */
.cta {
  text-align: center;
  padding: 48px 0;
}

/* Forms */
.form-card {
  max-width: 420px;
  margin: 0 auto;
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px;
}

.form-card h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 24px;
}

label {
  display: block;
  margin-bottom: 16px;
}

label span {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--muted);
}

input,
textarea {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--ink);
  font: inherit;
  font-size: 0.95rem;
}

input:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent);
}

/* Flash messages */
.flash-stack {
  margin-bottom: 24px;
}

.flash {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  margin-bottom: 12px;
}

.flash-success {
  background: rgba(34, 197, 94, 0.1);
  color: var(--accent);
  border: 1px solid rgba(34, 197, 94, 0.2);
}

.flash-error {
  background: rgba(239, 68, 68, 0.1);
  color: var(--error);
  border: 1px solid rgba(239, 68, 68, 0.2);
}

/* Tables and lists */
.content {
  display: grid;
  gap: 24px;
}

.panel {
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 20px;
}

.panel-head p {
  margin-top: 4px;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
}

.section-head h2 {
  font-size: 1.25rem;
  font-weight: 600;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

th,
td {
  text-align: left;
  padding: 12px;
  border-bottom: 1px solid var(--line);
}

th {
  color: var(--muted);
  font-weight: 500;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

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

/* Status badges */
.status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 500;
  background: var(--bg-card);
}

.status-ok {
  background: rgba(34, 197, 94, 0.15);
  color: var(--accent);
}

.status-err {
  background: rgba(239, 68, 68, 0.15);
  color: var(--error);
}

.status-warn {
  background: rgba(234, 179, 8, 0.15);
  color: #eab308;
}

/* Cards */
.cards {
  display: grid;
  gap: 12px;
}

.problem-catalog {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.problem-catalog-compact {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.problem-tile {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 140px;
  padding: 16px;
  background:
    linear-gradient(180deg, rgba(34, 197, 94, 0.12), rgba(34, 197, 94, 0.02) 32%, rgba(255, 255, 255, 0.02)),
    var(--bg-card);
  border: 1px solid rgba(34, 197, 94, 0.18);
  border-radius: 0;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.problem-tile > *:not(.problem-tile-overlay) {
  position: relative;
  z-index: 1;
}

.problem-tile-overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  text-decoration: none;
}

.problem-tile::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #22c55e, #86efac);
}

.problem-tile:hover {
  border-color: rgba(34, 197, 94, 0.32);
  background:
    linear-gradient(180deg, rgba(34, 197, 94, 0.16), rgba(34, 197, 94, 0.03) 36%, rgba(255, 255, 255, 0.02)),
    var(--bg-card);
}

.problem-tile-easy {
  background:
    linear-gradient(180deg, rgba(34, 197, 94, 0.12), rgba(34, 197, 94, 0.02) 32%, rgba(255, 255, 255, 0.02)),
    var(--bg-card);
  border-color: rgba(34, 197, 94, 0.18);
}

.problem-tile-easy::before {
  background: linear-gradient(90deg, #22c55e, #86efac);
}

.problem-tile-easy:hover {
  border-color: rgba(34, 197, 94, 0.32);
  background:
    linear-gradient(180deg, rgba(34, 197, 94, 0.16), rgba(34, 197, 94, 0.03) 36%, rgba(255, 255, 255, 0.02)),
    var(--bg-card);
}

.problem-tile-medium {
  background:
    linear-gradient(180deg, rgba(234, 179, 8, 0.12), rgba(234, 179, 8, 0.02) 32%, rgba(255, 255, 255, 0.02)),
    var(--bg-card);
  border-color: rgba(234, 179, 8, 0.2);
}

.problem-tile-medium::before {
  background: linear-gradient(90deg, #eab308, #fde047);
}

.problem-tile-medium:hover {
  border-color: rgba(234, 179, 8, 0.34);
  background:
    linear-gradient(180deg, rgba(234, 179, 8, 0.16), rgba(234, 179, 8, 0.03) 36%, rgba(255, 255, 255, 0.02)),
    var(--bg-card);
}

.problem-tile-hard {
  background:
    linear-gradient(180deg, rgba(239, 68, 68, 0.12), rgba(239, 68, 68, 0.02) 32%, rgba(255, 255, 255, 0.02)),
    var(--bg-card);
  border-color: rgba(239, 68, 68, 0.2);
}

.problem-tile-hard::before {
  background: linear-gradient(90deg, #ef4444, #fca5a5);
}

.problem-tile-hard:hover {
  border-color: rgba(239, 68, 68, 0.34);
  background:
    linear-gradient(180deg, rgba(239, 68, 68, 0.16), rgba(239, 68, 68, 0.03) 36%, rgba(255, 255, 255, 0.02)),
    var(--bg-card);
}

.problem-tile-head {
  width: 100%;
}

.problem-tile-head h2,
.problem-tile-head h3 {
  margin: 0;
  font-size: 1.05rem;
  line-height: 1.3;
}

.problem-tile-badges {
  position: absolute;
  top: 12px;
  right: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  z-index: 3;
}

.problem-tile-title {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 92px;
  padding: 0 28px;
  text-align: center;
  color: var(--ink);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 16px;
}

.card h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.card p {
  font-size: 0.9rem;
  color: var(--muted);
}

/* Code blocks */
pre,
.preformatted {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 16px;
  overflow-x: auto;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 0.85rem;
  line-height: 1.5;
}

.statement-viewer {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 18px 20px;
  white-space: pre-wrap;
  line-height: 1.7;
  font-size: 0.95rem;
  font-family: inherit;
}

.statement-viewer-compact {
  font-size: 0.9rem;
  color: var(--muted);
}

.statement-rich h2,
.statement-rich h3,
.statement-rich h4 {
  margin: 0 0 12px;
  line-height: 1.3;
  color: var(--ink);
}

.statement-rich h2 + p,
.statement-rich h3 + p,
.statement-rich h4 + p {
  margin-top: 0;
}

.statement-rich p {
  margin: 0 0 14px;
}

.statement-rich p:last-child {
  margin-bottom: 0;
}

.statement-list {
  margin: 0 0 14px 20px;
  padding: 0;
}

.statement-list li {
  margin-bottom: 8px;
}

.statement-list li:last-child {
  margin-bottom: 0;
}

.statement-code {
  margin: 0 0 14px;
}

.text-viewer {
  min-height: 8rem;
  resize: vertical;
  overflow: auto;
  white-space: pre;
  line-height: 1.5;
}

.text-viewer-code {
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 0.85rem;
}

/* Meta info */
.meta {
  font-size: 0.85rem;
  color: var(--muted);
}

/* Dashboard specific */
.dashboard-stack {
  display: grid;
  gap: 24px;
}

.grid.two-up {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

@media (max-width: 768px) {
  .grid.two-up {
    grid-template-columns: 1fr;
  }
}

.eyebrow {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  margin-bottom: 4px;
}

.meta-chip {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--muted);
}

.plain-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.plain-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
}

.plain-list li:last-child {
  border-bottom: none;
}

.example-block {
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.example-block:last-child {
  border-bottom: none;
}

.example-block h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.example-block .plain-list {
  margin-top: 12px;
}

.note {
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.muted {
  color: var(--muted);
}

/* Tab styles */
.tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--line);
  padding-bottom: 16px;
}

.tab-button {
  padding: 8px 16px;
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--muted);
  cursor: pointer;
  font-size: 0.9rem;
  transition: all 0.15s;
}

.tab-button:hover {
  background: var(--bg-card);
  color: var(--ink);
}

.tab-button.active {
  background: var(--accent);
  color: #000;
  border-color: var(--accent);
  font-weight: 500;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

/* Badge styles */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 500;
}

.badge-success {
  background: rgba(34, 197, 94, 0.15);
  color: var(--accent);
}

.badge-muted {
  background: var(--bg-card);
  color: var(--muted);
}

/* Row styles for scoreboard */
tr.no-submission {
  color: var(--muted);
  opacity: 0.7;
}

/* Admin dashboard specific */
#tab-problems table td:last-child,
#tab-queue table td:last-child,
#tab-submissions table td:last-child {
  white-space: nowrap;
}

#tab-queue input[type="number"] {
  width: 60px;
  padding: 6px 8px;
}

#tab-problems .badge,
#tab-problems .button {
  font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 768px) {
  .page-shell {
    padding: 16px;
  }
  
  .hero-clean {
    padding: 32px 0 48px;
  }
  
  .hero-clean h1 {
    font-size: 1.75rem;
  }
  
  .features,
  .tech-grid {
    grid-template-columns: 1fr;
  }
  
  .site-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .panel-head {
    flex-direction: column;
  }
  
  .nav {
    flex-wrap: wrap;
    gap: 16px;
  }

  .problem-catalog {
    grid-template-columns: 1fr;
  }

  .landing-grid,
  .landing-band-row,
  .landing-card-grid,
  .landing-steps,
  .landing-tech-grid {
    grid-template-columns: 1fr;
  }

  .landing-copy,
  .landing-section,
  .landing-cta {
    padding: 22px;
    border-radius: 22px;
  }

  .landing-copy h1 {
    max-width: none;
    font-size: clamp(1.65rem, 6.8vw, 2.15rem);
    line-height: 1.12;
  }

  .landing-side {
    grid-template-columns: 1fr;
  }

  .landing-cta {
    flex-direction: column;
    align-items: flex-start;
  }
}