/* Poker Strategy — Dark Theme */

:root {
  --bg: #0d1117;
  --bg-secondary: #161b22;
  --card: #1c2129;
  --card-hover: #22272e;
  --border: #30363d;
  --text: #e6edf3;
  --text-muted: #8b949e;
  --primary: #58a6ff;
  --primary-hover: #79b8ff;
  --green: #3fb950;
  --red: #f85149;
  --yellow: #d29922;
  --purple: #bc8cff;
  --blue: #58a6ff;
  /* Poker action colors */
  --raise: #3fb950;
  --call: #58a6ff;
  --three-bet: #bc8cff;
  --fold: #484f58;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

/* Top nav */
.top-nav {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1.5rem;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}

.nav-brand {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary);
  margin-right: 1rem;
}

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

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  padding: 0.4rem 0.75rem;
  border-radius: 6px;
  font-size: 0.9rem;
  transition: background 0.15s, color 0.15s;
}

.nav-links a:hover { background: var(--card); color: var(--text); }
.nav-links a.active { background: var(--card); color: var(--primary); }

.nav-user {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-left: auto;
}

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

.nav-logout {
  color: var(--red);
  text-decoration: none;
  font-size: 0.85rem;
  padding: 0.3rem 0.6rem;
  border-radius: 4px;
  transition: background 0.15s;
}
.nav-logout:hover { background: rgba(248,81,73,0.15); }

/* Container */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

h1 { font-size: 1.5rem; margin-bottom: 0.5rem; }
.subtitle { color: var(--text-muted); margin-bottom: 1.5rem; }

/* Home grid */
.home-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.home-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.5rem;
  text-decoration: none;
  color: var(--text);
  transition: background 0.15s, border-color 0.15s;
}
.home-card:hover {
  background: var(--card-hover);
  border-color: var(--primary);
}

.home-card-icon {
  font-size: 2rem;
  margin-bottom: 0.75rem;
  color: var(--primary);
}

.home-card h2 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.home-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Login page */
.login-body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

.login-container {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  width: 100%;
  max-width: 400px;
}

.login-title {
  text-align: center;
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  color: var(--primary);
}

/* Tabs */
.tab-bar {
  display: flex;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
}

.tab {
  flex: 1;
  padding: 0.6rem;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.95rem;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
}
.tab:hover { color: var(--text); }
.tab.active { color: var(--primary); border-bottom-color: var(--primary); }

/* Forms */
.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.3rem;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 0.6rem 0.75rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 0.95rem;
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary);
}

/* Buttons */
.btn {
  padding: 0.6rem 1.25rem;
  border: none;
  border-radius: 6px;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background 0.15s;
}

.btn-primary {
  background: var(--primary);
  color: var(--bg);
  font-weight: 600;
  width: 100%;
}
.btn-primary:hover { background: var(--primary-hover); }

/* Error message */
.error-msg {
  background: rgba(248,81,73,0.12);
  border: 1px solid rgba(248,81,73,0.3);
  color: var(--red);
  padding: 0.6rem 0.75rem;
  border-radius: 6px;
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

/* Responsive */
@media (max-width: 640px) {
  .top-nav { padding: 0.5rem 1rem; }
  .nav-links a { font-size: 0.8rem; padding: 0.3rem 0.5rem; }
  .container { padding: 1.25rem 1rem; }
}