/* ===================================
   RIVERSIDE EQUESTRIAN - MAIN STYLES
   Modern, Professional, Responsive
   =================================== */

:root {
  /* Color Palette - Modern Blues with Equestrian Touch */
  --primary-color: #1e40af;
  --primary-dark: #1e3a8a;
  --primary-light: #3b82f6;
  --secondary-color: #64748b;
  --accent-color: #f59e0b;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --danger-color: #ef4444;
  --info-color: #06b6d4;

  /* Neutrals */
  --white: #ffffff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;

  /* Typography */
  --font-primary: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", monospace;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1),
    0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1),
    0 8px 10px -6px rgb(0 0 0 / 0.1);

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
}

/* ===================================
   GLOBAL STYLES
   =================================== */

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
  color: var(--gray-800);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

/* ===================================
   NAVIGATION STYLES
   =================================== */

.navbar {
  background: linear-gradient(
    135deg,
    var(--primary-color) 0%,
    var(--primary-dark) 100%
  ) !important;
  box-shadow: var(--shadow-lg);
  border-bottom: 3px solid var(--accent-color);
  backdrop-filter: blur(10px);
}

.navbar-brand {
  font-weight: 700;
  font-size: 1.25rem;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

.navbar-brand:hover {
  transform: translateY(-1px);
  text-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.navbar-nav .nav-link {
  font-weight: 500;
  padding: 0.75rem 1rem !important;
  border-radius: var(--radius-md);
  margin: 0 0.25rem;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.navbar-nav .nav-link:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-1px);
}

.navbar-nav .nav-link.active {
  background: rgba(255, 255, 255, 0.2);
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.navbar-nav .nav-link::before {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-color);
  transition: width 0.3s ease;
}

.navbar-nav .nav-link:hover::before {
  width: 100%;
}

.dropdown-menu {
  border: none;
  box-shadow: var(--shadow-xl);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
  background: rgba(255, 255, 255, 0.95);
}

.dropdown-item {
  padding: 0.75rem 1rem;
  transition: all 0.2s ease;
  border-radius: var(--radius-sm);
  margin: 0.125rem;
}

.dropdown-item:hover {
  background: var(--primary-light);
  color: white;
  transform: translateX(2px);
}

/* ===================================
   CARDS & CONTAINERS
   =================================== */

.card {
  border: none;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  background: var(--white);
  transition: all 0.3s ease;
  overflow: hidden;
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.card-header {
  background: linear-gradient(135deg, var(--gray-50) 0%, var(--gray-100) 100%);
  border-bottom: 1px solid var(--gray-200);
  font-weight: 600;
  padding: 1.25rem;
}

.card-body {
  padding: 1.5rem;
}

/* ===================================
   FORMS & INPUTS
   =================================== */

.form-control {
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  font-size: 0.95rem;
  transition: all 0.3s ease;
  background: var(--white);
}

.form-control:focus {
  border-color: var(--primary-light);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
  transform: translateY(-1px);
}

.form-floating > label {
  color: var(--gray-500);
  font-weight: 500;
}

.form-floating > .form-control:focus ~ label {
  color: var(--primary-color);
}

.form-select {
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-md);
  transition: all 0.3s ease;
}

.form-select:focus {
  border-color: var(--primary-light);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.input-group {
  box-shadow: var(--shadow-sm);
  border-radius: var(--radius-md);
  overflow: hidden;
}

/* ===================================
   BUTTONS
   =================================== */

.btn {
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  border: none;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  transition: left 0.5s;
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: linear-gradient(
    135deg,
    var(--primary-color) 0%,
    var(--primary-dark) 100%
  );
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background: linear-gradient(
    135deg,
    var(--primary-dark) 0%,
    var(--primary-color) 100%
  );
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-success {
  background: linear-gradient(135deg, var(--success-color) 0%, #059669 100%);
}

.btn-warning {
  background: linear-gradient(135deg, var(--warning-color) 0%, #d97706 100%);
}

.btn-danger {
  background: linear-gradient(135deg, var(--danger-color) 0%, #dc2626 100%);
}

.btn-outline-primary {
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
}

.btn-outline-primary:hover {
  background: var(--primary-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.125rem;
  border-radius: var(--radius-lg);
}

/* ===================================
   ALERTS & NOTIFICATIONS
   =================================== */

.alert {
  border: none;
  border-radius: var(--radius-lg);
  padding: 1rem 1.25rem;
  font-weight: 500;
  box-shadow: var(--shadow-md);
  border-left: 4px solid;
}

.alert-success {
  background: linear-gradient(135deg, #ecfdf5 0%, #f0fdf4 100%);
  color: #065f46;
  border-left-color: var(--success-color);
}

.alert-danger {
  background: linear-gradient(135deg, #fef2f2 0%, #fef2f2 100%);
  color: #991b1b;
  border-left-color: var(--danger-color);
}

.alert-warning {
  background: linear-gradient(135deg, #fffbeb 0%, #fefce8 100%);
  color: #92400e;
  border-left-color: var(--warning-color);
}

.alert-info {
  background: linear-gradient(135deg, #f0f9ff 0%, #f0f9ff 100%);
  color: #0c4a6e;
  border-left-color: var(--info-color);
}

/* ===================================
   LOGIN PAGE SPECIFIC
   =================================== */

.login-container {
  animation: fadeInUp 0.6s ease-out;
}

.login-card {
  background: var(--white);
  box-shadow: var(--shadow-xl);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.login-header {
  background: linear-gradient(
    135deg,
    var(--primary-color) 0%,
    var(--primary-dark) 100%
  );
  position: relative;
}

.login-header::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 20"><path fill="white" fill-opacity="0.1" d="M0 20L100 0v20z"/></svg>');
  background-size: 100px 20px;
}

.login-body {
  background: var(--white);
}

.role-info {
  background: linear-gradient(135deg, var(--gray-50) 0%, var(--gray-100) 100%);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  position: relative;
}

.role-info::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(
    to bottom,
    var(--primary-color),
    var(--accent-color)
  );
  border-radius: var(--radius-sm);
}

/* ===================================
   ERROR PAGE SPECIFIC
   =================================== */

.error-container {
  animation: fadeIn 0.6s ease-out;
}

.error-code {
  background: linear-gradient(135deg, var(--gray-100) 0%, var(--gray-200) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.error-icon {
  animation: pulse 2s infinite;
}

.error-details {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

.error-details pre {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
}

/* ===================================
   FOOTER
   =================================== */

footer {
  background: linear-gradient(135deg, var(--gray-100) 0%, var(--gray-50) 100%);
  border-top: 1px solid var(--gray-200);
  margin-top: auto;
}

footer a {
  color: var(--gray-600);
  transition: color 0.3s ease;
}

footer a:hover {
  color: var(--primary-color);
}

/* ===================================
   ANIMATIONS
   =================================== */

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

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

@keyframes slideIn {
  from {
    transform: translateX(-20px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* ===================================
   UTILITIES
   =================================== */

.text-gradient {
  background: linear-gradient(
    135deg,
    var(--primary-color) 0%,
    var(--accent-color) 100%
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.glass-effect {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.hover-lift {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

/* ===================================
   RESPONSIVE DESIGN
   =================================== */

@media (max-width: 768px) {
  .navbar-nav .nav-link {
    padding: 0.5rem 0.75rem !important;
    margin: 0.125rem 0;
  }

  .btn {
    padding: 0.625rem 1.25rem;
  }

  .card-body {
    padding: 1rem;
  }

  .login-container {
    margin: 1rem auto;
    padding: 0 1rem;
  }

  .error-code {
    font-size: 4rem;
  }
}

@media (max-width: 576px) {
  .error-code {
    font-size: 3rem;
  }

  .action-buttons .btn {
    width: 100%;
    margin: 0.25rem 0;
  }
}

/* ===================================
   DARK MODE SUPPORT (Future)
   =================================== */

@media (prefers-color-scheme: dark) {
  /* Dark mode styles can be added here later */
}

/* ===================================
   PRINT STYLES
   =================================== */

@media print {
  .navbar,
  .btn,
  footer {
    display: none !important;
  }

  .card {
    box-shadow: none !important;
    border: 1px solid var(--gray-300) !important;
  }
}