/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #0d1117;
  --surface:   #161b22;
  --surface2:  #1c2128;
  --border:    #30363d;
  --text:      #c9d1d9;
  --text-muted:#8b949e;
  --green:     #3fb950;
  --blue:      #58a6ff;
  --cyan:      #39d5d5;
  --yellow:    #e3b341;
  --red:       #f85149;
  --purple:    #bc8cff;
  --accent:    #58a6ff;
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ===== HEADER ===== */
.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 56px;
  display: flex;
  align-items: center;
  gap: 2rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  flex-shrink: 0;
}

.logo-icon { color: var(--cyan); font-size: 1rem; }
.logo-accent { color: var(--cyan); }

.main-nav {
  display: flex;
  gap: 0.25rem;
  flex: 1;
}

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.875rem;
  padding: 0.4rem 0.75rem;
  border-radius: 6px;
  transition: color 0.15s, background 0.15s;
}

.nav-link:hover, .nav-link.active {
  color: var(--text);
  background: var(--surface2);
}

/* ===== USER BADGE ===== */
.user-badge {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.75rem;
  border-radius: 20px;
  border: 1px solid var(--border);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  flex-shrink: 0;
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.badge-guest .badge-dot { background: var(--yellow); }
.badge-guest .badge-label { color: var(--yellow); }
.badge-guest { border-color: #5a4a1a; background: #1e1a0e; }

.badge-admin .badge-dot { background: var(--green); }
.badge-admin .badge-label { color: var(--green); }
.badge-admin { border-color: #1a3a1e; background: #0e1f12; }

/* ===== HERO ===== */
.hero {
  background: linear-gradient(135deg, #0d1117 0%, #111820 50%, #0d1117 100%);
  border-bottom: 1px solid var(--border);
  padding: 3rem 1.5rem 2.5rem;
  text-align: center;
}

.hero h1 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.hero-sub {
  color: var(--text-muted);
  font-size: 1rem;
}

.hero-sub strong { color: var(--cyan); }

/* ===== MAIN CONTENT ===== */
.main-content {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  flex: 1;
  width: 100%;
}

/* ===== CARDS ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}

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

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.25rem;
}

.card-full {
  width: 100%;
  margin-bottom: 1.5rem;
}

.card-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.card-icon { font-size: 0.65rem; }
.card-icon.green  { color: var(--green); }
.card-icon.blue   { color: var(--blue); }
.card-icon.cyan   { color: var(--cyan); }
.card-icon.yellow { color: var(--yellow); }
.card-icon.red    { color: var(--red); }

.card-desc {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: 1.25rem;
}

/* ===== STAT ROWS ===== */
.stat-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.35rem 0;
  font-size: 0.875rem;
  border-bottom: 1px solid #1e2430;
}
.stat-row:last-child { border-bottom: none; }

.stat-label { color: var(--text-muted); }
.stat-val   { font-weight: 500; }
.stat-val.green  { color: var(--green); }
.stat-val.red    { color: var(--red); }

/* ===== PING FORM ===== */
.ping-form { margin-bottom: 1.25rem; }

.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.5rem;
}

.input-group {
  display: flex;
  gap: 0.5rem;
}

.form-input {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 0.9rem;
  font-family: 'Courier New', Courier, monospace;
  padding: 0.55rem 0.85rem;
  outline: none;
  transition: border-color 0.15s;
}

.form-input:focus { border-color: var(--cyan); }
.form-input::placeholder { color: #484f58; }

.btn-run {
  background: var(--cyan);
  color: #0d1117;
  border: none;
  border-radius: 6px;
  font-size: 0.875rem;
  font-weight: 700;
  padding: 0.55rem 1.25rem;
  cursor: pointer;
  white-space: nowrap;
  transition: opacity 0.15s;
}
.btn-run:hover { opacity: 0.85; }

/* ===== TERMINAL ===== */
.terminal-box {
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  margin-top: 1rem;
}

.terminal-header {
  background: #1e2430;
  padding: 0.5rem 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.term-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.red-dot    { background: #ff5f57; }
.yellow-dot { background: #febc2e; }
.green-dot  { background: #28c840; }

.term-title {
  color: var(--text-muted);
  font-size: 0.75rem;
  margin-left: 0.5rem;
  font-family: monospace;
}

.terminal-output {
  background: #020409;
  color: var(--green);
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.82rem;
  line-height: 1.6;
  padding: 1rem 1.2rem;
  white-space: pre-wrap;
  word-break: break-all;
  max-height: 420px;
  overflow-y: auto;
}

/* ===== LOCKED PANEL ===== */
.locked-panel {
  text-align: center;
  padding: 2.5rem 1rem;
}

.lock-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  opacity: 0.6;
}

.lock-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.lock-desc {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
}

.lock-desc code {
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--yellow);
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  font-size: 0.85em;
}

.locked-label {
  margin-left: auto;
  background: #1f0e0e;
  color: var(--red);
  border: 1px solid #5a1a1a;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 0.15rem 0.6rem;
  border-radius: 4px;
}

/* ===== ADMIN / FLAG ===== */
.admin-label {
  margin-left: auto;
  background: #0e1f12;
  color: var(--green);
  border: 1px solid #1a3a1e;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 0.15rem 0.6rem;
  border-radius: 4px;
}

.flag-box {
  background: #020c08;
  border: 1px solid #1a3a1e;
  border-left: 4px solid var(--green);
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: 1.25rem;
}

.flag-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--green);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.flag-value {
  font-family: 'Courier New', Courier, monospace;
  font-size: 1.2rem;
  font-weight: 700;
  color: #7ee787;
  letter-spacing: 0.03em;
  word-break: break-all;
}

.admin-notes {
  font-size: 0.825rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.admin-notes strong { color: var(--text); }

/* ===== FOOTER ===== */
.site-footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  text-align: center;
  padding: 1rem 1.5rem;
  font-size: 0.75rem;
  color: #484f58;
}