@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600&family=Vazirmatn:wght@300;400;500;600;700&display=swap');

:root {
  --bg: #09090b;
  --bg-elevated: #0f0f12;
  --bg-surface: #141418;
  --bg-hover: #1a1a1f;
  --border: #27272a;
  --border-light: #3f3f46;
  --text: #fafafa;
  --text-secondary: #a1a1aa;
  --text-muted: #71717a;
  --accent: #6366f1;
  --accent-hover: #818cf8;
  --accent-muted: rgba(99, 102, 241, 0.12);
  --accent-border: rgba(99, 102, 241, 0.35);
  --success: #22c55e;
  --success-muted: rgba(34, 197, 94, 0.1);
  --warning: #eab308;
  --warning-muted: rgba(234, 179, 8, 0.1);
  --danger: #ef4444;
  --danger-muted: rgba(239, 68, 68, 0.1);
  --font: 'Vazirmatn', system-ui, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  direction: rtl;
  line-height: 1.65;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(circle at 1px 1px, rgba(255, 255, 255, 0.03) 1px, transparent 0);
  background-size: 32px 32px;
  pointer-events: none;
  z-index: 0;
}

a { color: var(--accent-hover); text-decoration: none; transition: color 0.15s; }
a:hover { color: var(--text); }

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 28px;
  position: relative;
  z-index: 1;
}

/* ── Header ── */
.site-header {
  padding: 0;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(9, 9, 11, 0.92);
  backdrop-filter: blur(16px) saturate(1.2);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text);
  letter-spacing: -0.01em;
}

.logo svg { flex-shrink: 0; }

.logo-divider {
  width: 1px;
  height: 18px;
  background: var(--border);
  margin: 0 4px;
}

.logo-tag {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  gap: 2px;
  list-style: none;
  align-items: center;
}

.nav-links a {
  padding: 6px 14px;
  border-radius: 6px;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 500;
  transition: all 0.15s;
}

.nav-links a:hover { color: var(--text-secondary); background: var(--bg-hover); }

.nav-links a.active {
  color: var(--text);
  background: var(--bg-surface);
}

.nav-links a.locked {
  opacity: 0.35;
  pointer-events: none;
}

.nav-progress {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-right: 16px;
  padding-right: 16px;
  border-right: 1px solid var(--border);
}

.nav-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border-light);
  transition: background 0.2s;
}

.nav-dot.done { background: var(--success); }
.nav-dot.active { background: var(--accent); box-shadow: 0 0 0 3px var(--accent-muted); }

/* ── Hero ── */
.hero {
  padding: 56px 0 48px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 40px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 48px;
  align-items: end;
}

@media (max-width: 768px) {
  .hero-grid { grid-template-columns: 1fr; gap: 24px; }
}

.hero-eyebrow {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--accent-hover);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.hero h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: 16px;
}

.hero h1 em {
  font-style: normal;
  color: var(--text-secondary);
  font-weight: 400;
}

.hero-sub {
  color: var(--text-secondary);
  font-size: 1rem;
  max-width: 520px;
  line-height: 1.75;
  font-weight: 400;
}

.hero-stats {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 200px;
}

.stat-item {
  padding: 14px 18px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.stat-label {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.stat-value {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
}

.badge-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.badge {
  padding: 4px 10px;
  border-radius: 4px;
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text-muted);
}

.badge.accent {
  border-color: var(--accent-border);
  color: var(--accent-hover);
  background: var(--accent-muted);
}

.badge.warn {
  border-color: rgba(234, 179, 8, 0.3);
  color: var(--warning);
  background: var(--warning-muted);
}

/* ── Section header ── */
.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 20px;
}

.section-header h2 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: -0.01em;
}

.section-header span {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* ── Level cards ── */
.level-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-bottom: 64px;
}

.level-card {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 24px;
  align-items: center;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  transition: border-color 0.2s, background 0.2s;
  position: relative;
}

.level-card:hover:not(.locked) {
  border-color: var(--border-light);
  background: var(--bg-hover);
}

.level-card.locked {
  opacity: 0.45;
  pointer-events: none;
}

.level-card.completed {
  border-color: rgba(34, 197, 94, 0.25);
}

.level-index {
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  flex-shrink: 0;
}

.level-card.completed .level-index {
  border-color: rgba(34, 197, 94, 0.4);
  color: var(--success);
  background: var(--success-muted);
}

.level-card.locked .level-index::after {
  content: '';
  position: absolute;
  width: 14px;
  height: 14px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2371717a'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M12 15v2m-6 4h12a2 2 0 002-2v-6a2 2 0 00-2-2H6a2 2 0 00-2 2v6a2 2 0 002 2zm10-10V7a4 4 0 00-8 0v4h8z'/%3E%3C/svg%3E") center/contain no-repeat;
}

.level-body h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 6px;
  letter-spacing: -0.02em;
}

.level-meta {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 8px;
}

.level-body p {
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.6;
}

.difficulty {
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 500;
  padding: 2px 8px;
  border-radius: 3px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.diff-easy { background: var(--success-muted); color: var(--success); }
.diff-medium { background: var(--warning-muted); color: var(--warning); }
.diff-hard { background: var(--danger-muted); color: var(--danger); }

.type-tag {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--text-muted);
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 18px;
  border: none;
  border-radius: 6px;
  font-family: var(--font);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-hover);
  color: #fff;
}

.btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
}

.btn-ghost:hover {
  border-color: var(--border-light);
  color: var(--text);
  background: var(--bg-hover);
}

.btn-sm { padding: 6px 14px; font-size: 0.8rem; }

/* ── Challenge layout ── */
.challenge-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 28px;
  padding: 36px 0 64px;
  align-items: start;
}

@media (max-width: 900px) {
  .challenge-layout { grid-template-columns: 1fr; }
}

.challenge-header {
  margin-bottom: 28px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.challenge-header .module-id {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--accent-hover);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.challenge-header h1 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
}

.challenge-header .meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}

/* ── Cards / panels ── */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.card-title {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 16px;
  font-family: var(--mono);
}

.card + .card { margin-top: 16px; }

/* ── Forms ── */
.form-group { margin-bottom: 16px; }

.form-group label {
  display: block;
  margin-bottom: 6px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
}

input[type="text"],
input[type="search"],
textarea {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-family: var(--font);
  font-size: 0.9rem;
  transition: border-color 0.15s, box-shadow 0.15s;
}

input::placeholder, textarea::placeholder { color: var(--text-muted); }

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

textarea { min-height: 100px; resize: vertical; line-height: 1.6; }

.search-results {
  margin-top: 20px;
  padding: 20px;
  background: var(--bg);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.search-results h3 {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

/* ── Tickets ── */
.ticket-list { display: flex; flex-direction: column; gap: 10px; margin-top: 16px; }

.ticket-item {
  padding: 16px;
  background: var(--bg);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.ticket-meta {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: var(--mono);
}

.ticket-subject {
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 8px;
}

.ticket-body { font-size: 0.88rem; color: var(--text-secondary); }

.secret-flag {
  display: none;
  margin-top: 20px;
  padding: 20px;
  background: var(--success-muted);
  border: 1px solid rgba(34, 197, 94, 0.3);
  border-radius: var(--radius);
  text-align: center;
}

.secret-flag .flag-label {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--success);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.secret-flag code {
  font-family: var(--mono);
  color: var(--success);
  font-size: 0.95rem;
}

/* ── Profile ── */
.profile-preview {
  margin-top: 20px;
  padding: 20px;
  background: var(--bg);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  min-height: 80px;
}

.filter-notice {
  margin-top: 12px;
  padding: 10px 14px;
  background: var(--warning-muted);
  border: 1px solid rgba(234, 179, 8, 0.2);
  border-radius: 6px;
  font-size: 0.82rem;
  color: var(--warning);
  font-family: var(--mono);
}

/* ── Sidebar ── */
.sidebar { display: flex; flex-direction: column; gap: 12px; position: sticky; top: 80px; }

.sidebar-panel {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.panel-header h3 {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: var(--mono);
}

.panel-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.sidebar-panel .owasp-cat {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.sidebar-panel .owasp-topic {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text);
}

.sidebar-panel p {
  font-size: 0.84rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ── Hints ── */
.hint-progress {
  height: 2px;
  background: var(--border);
  border-radius: 1px;
  margin-bottom: 14px;
  overflow: hidden;
}

.hint-progress-bar {
  height: 100%;
  background: var(--accent);
  border-radius: 1px;
  transition: width 0.3s ease;
  width: 0%;
}

.hint-list { display: flex; flex-direction: column; gap: 8px; }

.hint-item {
  padding: 12px;
  background: var(--bg);
  border-radius: 6px;
  border: 1px solid transparent;
  opacity: 0;
  transform: translateY(6px);
  transition: all 0.3s ease;
}

.hint-item.visible {
  opacity: 1;
  transform: translateY(0);
  border-color: var(--border);
}

.hint-item.revealed { border-color: var(--accent-border); }

.hint-num {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  margin-bottom: 6px;
  letter-spacing: 0.06em;
}

.hint-text {
  font-size: 0.84rem;
  color: var(--text-secondary);
  min-height: 1.4em;
  line-height: 1.6;
}

.hint-text.typing::after {
  content: '|';
  animation: blink 0.9s step-end infinite;
  color: var(--accent);
  margin-right: 1px;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.btn-hint {
  width: 100%;
  margin-top: 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 8px;
  border-radius: 6px;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 0.78rem;
  transition: all 0.15s;
}

.btn-hint:hover {
  border-color: var(--border-light);
  color: var(--text);
  background: var(--bg-hover);
}

.btn-hint:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ── Flag panel ── */
.flag-panel input {
  font-family: var(--mono);
  font-size: 0.82rem;
  margin-bottom: 10px;
}

.flag-result {
  margin-top: 8px;
  font-size: 0.82rem;
  padding: 10px 12px;
  border-radius: 6px;
  display: none;
  font-family: var(--mono);
}

.flag-result.success {
  display: block;
  background: var(--success-muted);
  color: var(--success);
  border: 1px solid rgba(34, 197, 94, 0.25);
}

.flag-result.error {
  display: block;
  background: var(--danger-muted);
  color: var(--danger);
  border: 1px solid rgba(239, 68, 68, 0.25);
}

/* ── Toast ── */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  padding: 12px 20px;
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  box-shadow: var(--shadow-lg);
  z-index: 10000;
  transition: transform 0.3s ease;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text);
}

.toast.show { transform: translateX(-50%) translateY(0); }

/* ── Victory ── */
.victory-page { padding: 56px 0 80px; }

.victory-header {
  margin-bottom: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border);
}

.victory-header .eyebrow {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--success);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.victory-header h1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
}

.victory-header p { color: var(--text-secondary); max-width: 480px; }

.certificate {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 32px;
}

.cert-header {
  padding: 20px 28px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.cert-header h2 {
  font-size: 0.9rem;
  font-weight: 600;
}

.cert-id {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-muted);
}

.cert-body { padding: 28px; }

.recap { list-style: none; }

.recap li {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.88rem;
  color: var(--text-muted);
}

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

.recap li strong {
  color: var(--text);
  font-weight: 600;
  font-family: var(--mono);
  font-size: 0.8rem;
}

.cert-flag {
  margin-top: 24px;
  padding: 16px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--success);
  text-align: center;
}

/* ── Status ── */
.status-msg {
  padding: 12px 16px;
  border-radius: 6px;
  margin-top: 16px;
  font-size: 0.85rem;
  line-height: 1.6;
}

.status-success {
  background: var(--success-muted);
  color: var(--success);
  border: 1px solid rgba(34, 197, 94, 0.25);
}

.status-info {
  background: var(--warning-muted);
  color: var(--warning);
  border: 1px solid rgba(234, 179, 8, 0.2);
}

.status-error {
  background: var(--danger-muted);
  color: var(--danger);
  border: 1px solid rgba(239, 68, 68, 0.25);
}

/* ── Error / locked ── */
.error-page, .locked-page {
  text-align: center;
  padding: 100px 0;
}

.error-code {
  font-family: var(--mono);
  font-size: 4rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: -0.04em;
  margin-bottom: 16px;
}

/* ── Footer ── */
.site-footer {
  padding: 24px 0;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-left {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-left .domain {
  font-family: var(--mono);
  color: var(--text-secondary);
}

.footer-warning {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--warning);
  opacity: 0.8;
}

/* ── Code ── */
code {
  font-family: var(--mono);
  background: var(--bg);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.82rem;
  direction: ltr;
  display: inline-block;
  border: 1px solid var(--border);
}

pre {
  font-family: var(--mono);
  background: var(--bg);
  padding: 16px;
  overflow-x: auto;
  margin: 12px 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.82rem;
  direction: ltr;
}

/* ── Utility ── */
.text-muted { color: var(--text-muted); }
.text-sm { font-size: 0.85rem; }
.mb-16 { margin-bottom: 16px; }
.mt-16 { margin-top: 16px; }

/* ── XSS success reveal ── */
.xss-reveal {
  display: none;
  margin-top: 16px;
  padding: 16px;
  background: var(--success-muted);
  border: 1px solid rgba(34, 197, 94, 0.25);
  border-radius: var(--radius);
  text-align: center;
}

.xss-reveal .flag-label {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--success);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

@media (max-width: 640px) {
  .level-card { grid-template-columns: 1fr; gap: 16px; }
  .level-action { justify-self: start; }
  .site-footer { flex-direction: column; text-align: center; }
  .recap li { grid-template-columns: 1fr; gap: 4px; }
  .nav-progress { display: none; }
}