/* ============================================
   PowerShell Hackathon 2026 — Theme
   ============================================ */

:root {
  /* PS Blue / Dark terminal palette */
  --bg-primary: #0c0c1e;
  --bg-secondary: #12122e;
  --bg-card: #181840;
  --bg-terminal: #012456;
  --bg-terminal-titlebar: #1e1e3a;
  --text-primary: #e8e8f0;
  --text-secondary: #a0a0c0;
  --accent: #569cd6;
  --accent-bright: #6cc5ff;
  --accent-green: #4ec9b0;
  --accent-yellow: #dcdcaa;
  --accent-orange: #ce9178;
  --accent-red: #f44747;
  --accent-pink: #c586c0;
  --border: #2a2a5a;
  --radius: 10px;
  --radius-sm: 6px;
  --font-mono: "Cascadia Code", "Fira Code", "Consolas", monospace;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 5rem; }
body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

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

.container { max-width: 1100px; margin: 0 auto; padding: 0 1.5rem; }

.hidden { display: none !important; }

/* ---- Header ---- */
.site-header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.8rem;
  padding-bottom: 0.8rem;
}
.logo {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-primary);
}
.logo .ps-prompt { color: var(--accent); }
.logo .year { color: var(--accent-yellow); }

.main-nav { display: flex; gap: 1.5rem; }
.nav-link {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.2s;
}
.nav-link:hover { color: var(--accent-bright); text-decoration: none; }

/* ---- Hero ---- */
.hero {
  padding: 1.5rem 0 1rem;
  text-align: center;
}
.hero-title {
  font-size: 2.6rem;
  font-weight: 700;
  margin-top: 2rem;
}
.hero-title .highlight { color: var(--accent-yellow); }
.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-top: 0.5rem;
}

/* ---- Terminal Window ---- */
.terminal-window {
  background: var(--bg-terminal);
  border-radius: var(--radius);
  overflow: hidden;
  text-align: left;
  max-width: 720px;
  margin: 0 auto;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
  border: 1px solid var(--border);
}
.terminal-titlebar {
  background: var(--bg-terminal-titlebar);
  padding: 0.5rem 0.8rem;
  display: flex;
  align-items: center;
  gap: 0.45rem;
}
.terminal-dot {
  width: 12px; height: 12px; border-radius: 50%;
}
.terminal-dot.red { background: #ff5f57; }
.terminal-dot.yellow { background: #febc2e; }
.terminal-dot.green { background: #28c840; }
.terminal-title {
  color: var(--text-secondary);
  font-size: 0.8rem;
  margin-left: 0.5rem;
  font-family: var(--font-sans);
}
.terminal-body {
  padding: 1rem 1.2rem;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.7;
  color: #cccccc;
}
.terminal-body .prompt { color: var(--accent-yellow); }
.terminal-body .cmd { color: var(--accent-bright); }
.terminal-body .str { color: var(--accent-orange); }
.terminal-body .output { color: #cccccc; }
.terminal-body .cursor {
  color: var(--accent-green);
  animation: blink 1s step-end infinite;
}
@keyframes blink {
  50% { opacity: 0; }
}

/* ---- Cards ---- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 2rem;
}

/* ---- Section Titles ---- */
.section-title {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}
.section-desc {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

/* ---- Register / Auth ---- */
.register-section { padding: 1rem 0; }
.register-section .card { max-width: 520px; margin: 0 auto; }
.register-section h2 { margin-bottom: 0.3rem; }
.register-section p { color: var(--text-secondary); margin-bottom: 1.2rem; }

.form-group { margin-bottom: 1rem; }
.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: 0.3rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
}
.form-group input, .form-group textarea, .form-group select {
  width: 100%;
  padding: 0.65rem 0.9rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  transition: border-color 0.2s;
}
.form-group input:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
}
.form-group textarea {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  resize: vertical;
  min-height: 120px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 1.4rem;
  border-radius: var(--radius-sm);
  border: none;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
}
.btn:active { transform: scale(0.97); }

.btn-primary {
  background: var(--accent);
  color: #fff;
  width: 100%;
}
.btn-primary:hover { background: var(--accent-bright); }

.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent-bright); }

.btn-small { padding: 0.3rem 0.8rem; font-size: 0.82rem; }

.btn-success {
  background: var(--accent-green);
  color: #012456;
}
.btn-success:hover { background: #5fe0c5; }

/* Participant bar */
.participant-info {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  flex-wrap: wrap;
}
.participant-name { color: var(--accent-bright); font-weight: 600; }
.participant-team { color: var(--accent-yellow); }
.separator { color: var(--border); }

/* ---- Challenges ---- */
.challenges-section { padding: 1.25rem 0 0; }
.challenges-grid {
  display: grid;
  gap: 1.5rem;
}

.challenge-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 2rem;
  transition: border-color 0.2s;
}
.challenge-card:hover { border-color: var(--accent); }
.challenge-card.submitted { border-color: var(--accent-green); }

.challenge-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.challenge-number {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--accent);
  background: rgba(86, 156, 214, 0.15);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
}
.challenge-points {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--accent-yellow);
}
.challenge-title {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}
.challenge-description {
  color: var(--text-secondary);
  font-size: 0.92rem;
  margin-bottom: 1rem;
  line-height: 1.65;
}
.challenge-hint {
  color: var(--accent-pink);
  font-size: 0.85rem;
  font-style: italic;
  margin-bottom: 1rem;
}
.challenge-entry-fields {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}
.challenge-entry-fields .form-group { margin-bottom: 0; }
.challenge-form { display: flex; flex-direction: column; gap: 0.8rem; }
.challenge-form .btn { align-self: flex-start; }
.submission-summary {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: rgba(86, 156, 214, 0.08);
  padding: 0.9rem;
}
.submission-answer-wrapper {
  position: relative;
}
.submission-summary-label {
  color: var(--text-secondary);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.5rem;
  font-family: var(--font-mono);
}
.submission-answer {
  margin: 0;
  padding-right: 4rem;
  white-space: pre-wrap;
  word-break: break-word;
  font-family: var(--font-mono);
  font-size: 0.84rem;
  color: var(--text-primary);
}
.submission-copy-btn {
  position: absolute;
  top: 50%;
  right: 0.4rem;
  transform: translateY(-50%);
  padding: 0.25rem 0.6rem;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--text-secondary);
  transition: all 0.15s;
}
.submission-copy-btn:hover {
  border-color: var(--accent-green);
  color: var(--accent-green);
}
.submission-copy-btn.copied {
  border-color: var(--accent-green);
  color: var(--accent-green);
}

.submit-status {
  font-size: 0.85rem;
  font-family: var(--font-mono);
  padding: 0.4rem 0;
}
.submit-status:empty { display: none; }
.submit-status.success { color: var(--accent-green); }
.submit-status.error { color: var(--accent-red); }

/* ---- Leaderboard ---- */
.leaderboard-section { padding: 1.25rem 0; }
.leaderboard-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}
.leaderboard-table th, .leaderboard-table td {
  text-align: left;
  padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--border);
}
.leaderboard-table th {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.leaderboard-table tbody tr:hover { background: rgba(86, 156, 214, 0.06); }
.empty-state {
  text-align: center;
  color: var(--text-secondary);
  padding: 2rem !important;
}

/* ---- Rules ---- */
.rules-section { padding: 1.25rem 0; }
.rules-list {
  list-style: none;
  padding: 0;
}
.rules-list li {
  padding: 0.6rem 0;
  padding-left: 1.8rem;
  position: relative;
  color: var(--text-secondary);
}
.rules-list li::before {
  content: ">";
  position: absolute;
  left: 0;
  color: var(--accent-green);
  font-family: var(--font-mono);
  font-weight: 700;
}

/* ---- Footer ---- */
.site-footer {
  text-align: center;
  padding: 2rem 0;
  color: var(--text-secondary);
  font-size: 0.85rem;
  border-top: 1px solid var(--border);
  margin-top: 2rem;
}

/* ---- Responsive ---- */
@media (max-width: 700px) {
  .hero-title { font-size: 1.8rem; }
  .terminal-body { font-size: 0.75rem; }
  .header-inner { flex-direction: column; gap: 0.5rem; }
  .card { padding: 1.2rem 1rem; }
  .challenge-header { flex-direction: column; align-items: flex-start; }
  .leaderboard-table th, .leaderboard-table td { padding: 0.5rem 0.5rem; font-size: 0.82rem; }
}