/* ── Base ─────────────────────────────────────────────────────────── */
:root {
  --bg: #0a0e17;
  --bg-card: #111827;
  --bg-hover: #1a2236;
  --border: #1e293b;
  --text: #e2e8f0;
  --text-dim: #64748b;
  --accent: #00b4d8;
  --danger: #ef4444;
}

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

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

/* ── Login ────────────────────────────────────────────────────────── */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: radial-gradient(ellipse at 50% 0%, #0f172a 0%, #0a0e17 70%);
}

.login-container {
  text-align: center;
  width: 100%;
  max-width: 360px;
  padding: 2rem;
}

.brand-icon {
  font-size: 3rem;
  margin-bottom: 0.5rem;
  filter: drop-shadow(0 0 20px rgba(0, 180, 216, 0.4));
}

.login-brand h1 {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  color: var(--text);
  margin-bottom: 2rem;
}

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

.login-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.login-input {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 16px;
  font-size: 1rem;
  color: var(--text);
  outline: none;
  transition: border-color 0.2s;
  text-align: center;
  letter-spacing: 0.1em;
}

.login-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 180, 216, 0.15);
}

.login-btn {
  background: var(--accent);
  color: #000;
  border: none;
  border-radius: 8px;
  padding: 14px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  letter-spacing: 0.05em;
  transition: background 0.2s, transform 0.1s;
}

.login-btn:hover { background: #0ea5c9; }
.login-btn:active { transform: scale(0.98); }

.error-msg {
  color: var(--danger);
  font-size: 0.9rem;
  margin-top: 0.5rem;
}

.shake {
  animation: shake 0.4s ease-in-out;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-8px); }
  75% { transform: translateX(8px); }
}

/* ── Topbar ───────────────────────────────────────────────────────── */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  border-bottom: 1px solid var(--border);
  background: rgba(10, 14, 23, 0.9);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 100;
}

.topbar-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.brand-icon-sm { font-size: 1.4rem; }

.brand-text {
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.logout-btn {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.85rem;
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  transition: all 0.2s;
}

.logout-btn:hover {
  color: var(--text);
  border-color: var(--text-dim);
}

/* ── Dashboard ────────────────────────────────────────────────────── */
.dashboard {
  max-width: 900px;
  margin: 0 auto;
  padding: 3rem 2rem;
}

.welcome h1 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 0.3rem;
}

.subtitle {
  color: var(--text-dim);
  margin-bottom: 2.5rem;
}

.app-grid {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.app-card {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem 1.8rem;
  text-decoration: none;
  color: var(--text);
  transition: all 0.2s;
  position: relative;
  overflow: hidden;
}

.app-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--accent);
  opacity: 0;
  transition: opacity 0.2s;
}

.app-card:hover {
  background: var(--bg-hover);
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.app-card:hover::before { opacity: 1; }

.app-icon {
  font-size: 2.2rem;
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 12px;
}

.app-info h2 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.2rem;
}

.app-info p {
  color: var(--text-dim);
  font-size: 0.85rem;
}

.app-arrow {
  margin-left: auto;
  font-size: 1.4rem;
  color: var(--text-dim);
  transition: color 0.2s, transform 0.2s;
}

.app-card:hover .app-arrow {
  color: var(--accent);
  transform: translateX(4px);
}

/* ── Footer ───────────────────────────────────────────────────────── */
.footer {
  text-align: center;
  padding: 2rem;
  color: var(--text-dim);
  font-size: 0.8rem;
}

/* ── Responsive ───────────────────────────────────────────────────── */
@media (max-width: 600px) {
  .dashboard { padding: 2rem 1rem; }
  .app-card { padding: 1.2rem; }
  .topbar { padding: 0.8rem 1rem; }
}