/* Import Modern Font */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* CSS Variables for Design System */
:root {
  /* Volleyball Theme Colors */
  --primary-orange: #FF6B35;
  --primary-blue: #004E89;
  --accent-yellow: #FFB627;
  --dark-navy: #001F3F;
  --light-bg: #F8F9FA;
  --white: #FFFFFF;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #FF6B35 0%, #FFB627 100%);
  --gradient-secondary: linear-gradient(135deg, #004E89 0%, #0077B6 100%);
  --gradient-overlay: linear-gradient(135deg, rgba(0, 78, 137, 0.95) 0%, rgba(0, 31, 63, 0.95) 100%);
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
  --shadow-xl: 0 12px 48px rgba(0, 0, 0, 0.24);
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  
  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background: var(--gradient-secondary);
  color: var(--dark-navy);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow-x: hidden;
  line-height: 1.6;
}

/* Animated Background Pattern */
body::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    radial-gradient(circle at 20% 30%, rgba(255, 107, 53, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(255, 182, 39, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 40% 80%, rgba(0, 119, 182, 0.1) 0%, transparent 50%);
  animation: backgroundShift 20s ease-in-out infinite;
  pointer-events: none;
}

@keyframes backgroundShift {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.1); }
}

/* Volleyball Pattern Decoration */
body::after {
  content: '🏐';
  position: absolute;
  font-size: 200px;
  opacity: 0.03;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  animation: rotate 60s linear infinite;
}

@keyframes rotate {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Login Container */
.container {
  position: relative;
  max-width: 480px;
  width: 90%;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px);
  padding: var(--spacing-xl);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  border: 1px solid rgba(255, 255, 255, 0.3);
  animation: slideUp 0.6s ease-out;
  z-index: 10;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Header Styles */
.login-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.logo-container {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  background: var(--gradient-primary);
  border-radius: 50%;
  margin-bottom: var(--spacing-md);
  box-shadow: var(--shadow-md);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.logo-container::before {
  content: '🏐';
  font-size: 40px;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

h2 {
  font-size: 1.75rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-xs);
  letter-spacing: -0.5px;
}

.subtitle {
  font-size: 0.95rem;
  color: #6B7280;
  font-weight: 400;
  margin-top: var(--spacing-xs);
}

/* Form Styles */
form {
  margin-top: var(--spacing-lg);
}

.form-group {
  margin-bottom: var(--spacing-md);
}

label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--dark-navy);
  margin-bottom: var(--spacing-xs);
  letter-spacing: 0.3px;
}

.input-wrapper {
  position: relative;
}

input[type="email"],
input[type="password"],
input[type="text"],
select {
  width: 100%;
  padding: 14px 16px;
  font-size: 1rem;
  font-family: 'Inter', sans-serif;
  border: 2px solid #E5E7EB;
  border-radius: var(--radius-md);
  background: var(--white);
  color: var(--dark-navy);
  transition: all 0.3s ease;
  outline: none;
}

input:focus,
select:focus {
  border-color: var(--primary-orange);
  box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.1);
  transform: translateY(-2px);
}

input::placeholder {
  color: #9CA3AF;
}

/* Button Styles */
button[type="submit"],
.btn-primary {
  width: 100%;
  padding: 14px 24px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--white);
  background: var(--gradient-primary);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-md);
  margin-top: var(--spacing-md);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  position: relative;
  overflow: hidden;
}

button[type="submit"]::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 0.5s ease;
}

button[type="submit"]:hover::before {
  left: 100%;
}

button[type="submit"]:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

button[type="submit"]:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

/* Error Message */
.error {
  background: #FEE2E2;
  color: #DC2626;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-md);
  font-size: 0.875rem;
  font-weight: 500;
  border-left: 4px solid #DC2626;
  animation: shake 0.4s ease;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-10px); }
  75% { transform: translateX(10px); }
}

/* Info Message */
.info-text {
  text-align: center;
  font-size: 0.875rem;
  color: #6B7280;
  margin-top: var(--spacing-lg);
  padding: 12px;
  background: #F3F4F6;
  border-radius: var(--radius-md);
  line-height: 1.5;
}

.info-text code {
  background: #E5E7EB;
  padding: 2px 8px;
  border-radius: 4px;
  font-family: 'Courier New', monospace;
  font-size: 0.85rem;
  color: var(--primary-blue);
  font-weight: 600;
}

/* Navigation Styles */
nav {
  background: var(--white);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--spacing-lg);
  border-radius: var(--radius-md);
}

nav a {
  color: var(--primary-blue);
  text-decoration: none;
  margin-right: var(--spacing-md);
  font-weight: 500;
  transition: color 0.3s ease;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
}

nav a:hover {
  color: var(--primary-orange);
  background: rgba(255, 107, 53, 0.1);
}

/* Table Styles */
table {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

table th,
table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid #E5E7EB;
}

table th {
  background: var(--gradient-secondary);
  color: var(--white);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.875rem;
  letter-spacing: 0.5px;
}

table tr:hover {
  background: #F9FAFB;
}

/* Responsive Design */
@media (max-width: 640px) {
  .container {
    padding: var(--spacing-lg);
    width: 95%;
  }
  
  h2 {
    font-size: 1.5rem;
  }
  
  .logo-container {
    width: 70px;
    height: 70px;
  }
  
  .logo-container::before {
    font-size: 35px;
  }
}

/* Utility Classes */
.text-center {
  text-align: center;
}

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }