/* ===== CSS Variables ===== */
:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --primary-light: #818cf8;
  --secondary: #ec4899;
  --secondary-dark: #db2777;
  --accent: #06b6d4;
  --bg-dark: #0f172a;
  --bg-card: #1e293b;
  --bg-input: #334155;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --gradient-1: linear-gradient(135deg, #6366f1 0%, #ec4899 100%);
  --gradient-2: linear-gradient(135deg, #06b6d4 0%, #6366f1 100%);
  --shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  --radius: 16px;
  --radius-sm: 8px;
}

/* ===== Reset & Base ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* ===== Animated Background ===== */
.background-effects {
  position: fixed;
  inset: 0;
  overflow: hidden;
  z-index: 0;
  pointer-events: none;
}

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
  animation: float 20s infinite ease-in-out;
}

.blob-1 {
  width: 600px;
  height: 600px;
  background: var(--primary);
  top: -200px;
  left: -200px;
  animation-delay: 0s;
}

.blob-2 {
  width: 500px;
  height: 500px;
  background: var(--secondary);
  bottom: -150px;
  right: -150px;
  animation-delay: -7s;
}

.blob-3 {
  width: 400px;
  height: 400px;
  background: var(--accent);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation-delay: -14s;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(50px, -50px) scale(1.1); }
  50% { transform: translate(0, 50px) scale(1); }
  75% { transform: translate(-50px, -50px) scale(0.9); }
}

/* ===== Container ===== */
.container {
  position: relative;
  z-index: 1;
  max-width: 600px;
  width: 90%;
  margin: 2rem auto;
  padding: 2rem;
  background: rgba(30, 41, 59, 0.8);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

/* ===== Header ===== */
.header {
  text-align: center;
  margin-bottom: 2rem;
}

.logo {
  width: 80px;
  height: 80px;
  background: var(--gradient-1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  font-size: 2rem;
  box-shadow: 0 0 40px rgba(99, 102, 241, 0.4);
  animation: pulse-glow 3s infinite ease-in-out;
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 40px rgba(99, 102, 241, 0.4); }
  50% { box-shadow: 0 0 60px rgba(99, 102, 241, 0.6); }
}

.header h1 {
  font-size: 2rem;
  font-weight: 700;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
}

.header p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* ===== Form ===== */
.booking-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group {
  position: relative;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

label i {
  color: var(--primary-light);
}

input, select {
  width: 100%;
  padding: 0.875rem 1rem;
  background: var(--bg-input);
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 1rem;
  transition: all 0.3s ease;
}

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

input:focus, select:focus {
  outline: none;
  border-color: var(--primary);
  background: var(--bg-input);
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.2);
}

select {
  cursor: pointer;
  appearance: none;
}

.select-arrow {
  position: absolute;
  right: 1rem;
  bottom: 1rem;
  color: var(--text-muted);
  pointer-events: none;
}

/* ===== Buttons ===== */
.btn-primary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  width: 100%;
  padding: 1rem;
  background: var(--gradient-1);
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 40px rgba(99, 102, 241, 0.4);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-danger {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: transparent;
  color: var(--danger);
  border: 2px solid var(--danger);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-danger:hover {
  background: var(--danger);
  color: white;
}

/* ===== Result Message ===== */
.result-message {
  text-align: center;
  padding: 1rem;
  border-radius: var(--radius-sm);
  margin-top: 1rem;
  font-weight: 500;
  display: none;
}

.result-message.success {
  display: block;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid var(--success);
  color: var(--success);
}

/* ===== Appointments Section ===== */
.appointments-section {
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.section-header h2 {
  font-size: 1.25rem;
  color: var(--text-primary);
}

.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-sm);
  background: var(--bg-input);
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 500px;
}

th, td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

th {
  background: var(--bg-dark);
  color: var(--primary-light);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

th i {
  margin-right: 0.5rem;
  opacity: 0.7;
}

td {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

tbody tr {
  transition: background 0.2s ease;
}

tbody tr:hover {
  background: rgba(99, 102, 241, 0.1);
}

tbody tr:last-child td {
  border-bottom: none;
}

/* ===== Empty State ===== */
tbody tr:only-child td:only-child {
  text-align: center;
  color: var(--text-muted);
  padding: 2rem;
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
  background: var(--primary);
  border-radius: 4px;
}

/* ===== Responsive ===== */
@media (max-width: 600px) {
  .container {
    margin: 1rem auto;
    padding: 1.5rem;
    width: 95%;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .section-header {
    flex-direction: column;
    gap: 1rem;
    align-items: flex-start;
  }

  .header h1 {
    font-size: 1.5rem;
  }
}