/* ========================================
   CSS Variables for Theme System
   ======================================== */
:root {
  /* Light Theme Colors */
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-tertiary: #e9ecef;
  --text-primary: #212529;
  --text-secondary: #6c757d;
  --text-muted: #adb5bd;
  --text-white: #ffffff;
  --border-color: #dee2e6;
  --navbar-bg: #ffffff;
  --navbar-text: #212529;
  --card-bg: #ffffff;
  --card-border: #dee2e6;
  --input-bg: #ffffff;
  --input-border: #ced4da;
  --button-bg: #0d6efd;
  --button-text: #ffffff;
  --link-color: #0d6efd;
  --link-hover: #0a58ca;
  --shadow-sm: rgba(0, 0, 0, 0.075);
  --shadow-md: rgba(0, 0, 0, 0.15);
}

[data-theme="dark"] {
  /* Dark Theme Colors */
  --bg-primary: #212529;
  --bg-secondary: #343a40;
  --bg-tertiary: #495057;
  --text-primary: #f8f9fa;
  --text-secondary: #adb5bd;
  --text-muted: #6c757d;
  --border-color: #495057;
  --navbar-bg: #343a40;
  --navbar-text: #f8f9fa;
  --card-bg: #2b3035;
  --card-border: #495057;
  --input-bg: #343a40;
  --input-border: #495057;
  --button-bg: #0d6efd;
  --button-text: #ffffff;
  --link-color: #6ea8fe;
  --link-hover: #9ec5fe;
  --shadow-sm: rgba(0, 0, 0, 0.3);
  --shadow-md: rgba(0, 0, 0, 0.5);
}

/* ========================================
   Base Styles
   ======================================== */
html {
  font-size: 14px;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  transition: background-color 0.3s ease, color 0.3s ease;
}

.btn:focus,
.btn:active:focus,
.btn-link.nav-link:focus,
.form-control:focus,
.form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

html {
  height: 100%;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  margin: 0;
}

/* Header - flex ile yerleşim için */
header {
  flex-shrink: 0;
}

/* Main content wrapper - genişleyebilir */
.container:has(main) {
  flex: 1 0 auto;
  display: flex;
  flex-direction: column;
}

/* Main content */
main {
  flex: 1;
}

/* Footer - sabit boyut */
.footer {
  flex-shrink: 0;
  padding: 1.5rem 0;
}

.form-floating>.form-control-plaintext::placeholder,
.form-floating>.form-control::placeholder {
  color: var(--bs-secondary-color);
  text-align: end;
}

.form-floating>.form-control-plaintext:focus::placeholder,
.form-floating>.form-control:focus::placeholder {
  text-align: start;
}

/* ========================================
   Dark Mode Component Styles
   ======================================== */

/* Navbar - Public */
.navbar-light {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] .navbar-light {
  background: linear-gradient(135deg, #2d3748 0%, #1a202c 100%) !important;
}

.navbar-light .navbar-brand,
.navbar-light .nav-link {
  color: #ffffff !important;
  font-weight: 500;
}

.navbar-light .nav-link:hover {
  color: rgba(255, 255, 255, 0.8) !important;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 0.25rem;
}

.navbar-light .navbar-brand {
  font-weight: 700;
  font-size: 1.5rem;
}

/* Cards */
.card {
  background-color: var(--card-bg);
  border-color: var(--card-border);
  color: var(--text-primary);
}

.card-body {
  color: var(--text-primary);
}

.card-text {
  color: var(--text-secondary);
}

/* Forms */
.form-control,
.form-select {
  background-color: var(--input-bg);
  border-color: var(--input-border);
  color: var(--text-primary);
}

.form-control:focus,
.form-select:focus {
  background-color: var(--input-bg);
  border-color: var(--button-bg);
  color: var(--text-primary);
}

/* Backgrounds */
.bg-light {
  background-color: var(--bg-secondary) !important;
}

.bg-white {
  background-color: var(--bg-primary) !important;
}

/* Text colors */
.text-dark {
  color: var(--text-primary) !important;
}

.text-muted {
  color: var(--text-muted) !important;
}

/* Tables */
.table {
  color: var(--text-primary);
}

.table-striped tbody tr:nth-of-type(odd) {
  background-color: var(--bg-secondary);
}

/* Alerts */
.alert {
  border-color: var(--border-color);
}

/* Dark Mode Toggle Button */
.theme-toggle {
  background: none;
  border: none;
  color: var(--text-white);
  font-size: 1.25rem;
  cursor: pointer;
  padding: 0.5rem;
  margin-left: 1rem;
  transition: transform 0.3s ease, color 0.3s ease;
  border-radius: 0.25rem;
}

.theme-toggle:hover {
  transform: scale(1.1);
  background-color: rgba(255, 255, 255, 0.1);
}

.theme-toggle i {
  transition: opacity 0.3s ease;
}

/* ========================================
   Admin Panel Enhancements
   ======================================== */

/* Admin Navbar Styling */
.navbar-dark {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] .navbar-dark {
  background: linear-gradient(135deg, #434343 0%, #000000 100%) !important;
}

.navbar-dark .navbar-brand {
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: 0.5px;
}

.navbar-dark .nav-link {
  font-weight: 500;
  padding: 0.5rem 1rem !important;
  border-radius: 0.25rem;
  transition: all 0.3s ease;
}

.navbar-dark .nav-link:hover {
  background-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
}

.navbar-dark .nav-link.active {
  background-color: rgba(255, 255, 255, 0.2);
}

/* Admin Buttons */
.btn-outline-light {
  border: 2px solid rgba(255, 255, 255, 0.8);
  transition: all 0.3s ease;
}

.btn-outline-light:hover {
  background-color: rgba(255, 255, 255, 0.2);
  border-color: #ffffff;
  transform: translateY(-2px);
}

/* ========================================
   Enhanced Card Styles
   ======================================== */

.card {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border-radius: 0.75rem;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px var(--shadow-md);
}

.card-img-top {
  transition: transform 0.5s ease;
}

.card:hover .card-img-top {
  transform: scale(1.05);
}

/* ========================================
   Button Enhancements
   ======================================== */

.btn {
  border-radius: 0.5rem;
  font-weight: 500;
  padding: 0.5rem 1.25rem;
  transition: all 0.3s ease;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--shadow-md);
}

.btn-primary {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border: none;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
}

[data-theme="dark"] .btn-primary {
  background: linear-gradient(135deg, #4a5568 0%, #2d3748 100%);
}

[data-theme="dark"] .btn-primary:hover {
  background: linear-gradient(135deg, #2d3748 0%, #4a5568 100%);
}

/* ========================================
   Form Enhancements
   ======================================== */

.form-control,
.form-select {
  border-radius: 0.5rem;
  border: 2px solid var(--input-border);
  padding: 0.625rem 0.875rem;
  transition: all 0.3s ease;
}

.form-control:focus,
.form-select:focus {
  border-color: #667eea;
  box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
  transform: translateY(-1px);
}

/* ========================================
   Page Header Styling
   ======================================== */

.page-header {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 2rem 0;
  margin-bottom: 2rem;
  border-radius: 0.75rem;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] .page-header {
  background: linear-gradient(135deg, #434343 0%, #000000 100%);
}

.page-header h1 {
  margin: 0;
  font-weight: 700;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

/* ========================================
   Badge Enhancements
   ======================================== */

.badge {
  padding: 0.5rem 0.75rem;
  border-radius: 0.5rem;
  font-weight: 500;
  font-size: 0.875rem;
}

/* ========================================
   Alert Enhancements
   ======================================== */

.alert {
  border-radius: 0.75rem;
  border: none;
  box-shadow: 0 2px 8px var(--shadow-sm);
}

/* ========================================
   Footer Styling
   ======================================== */

.footer {
  background-color: var(--bg-secondary);
  border-top: 2px solid var(--border-color);
  padding: 1.5rem 0;
}

/* ========================================
   Navbar Brand with Icon
   ======================================== */

.navbar-brand i {
  margin-right: 0.5rem;
  font-size: 1.25rem;
}

/* ========================================
   Smooth Transitions
   ======================================== */

* {
  transition-property: background-color, border-color, color;
  transition-duration: 0.3s;
  transition-timing-function: ease;
}

/* ========================================
   Loading Animation
   ======================================== */

.spinner-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 200px;
}

/* ========================================
   Responsive Improvements
   ======================================== */

@media (max-width: 768px) {
  .card {
    margin-bottom: 1rem;
  }

  .navbar-brand {
    font-size: 1.25rem !important;
  }

  .btn {
    width: 100%;
    margin-bottom: 0.5rem;
  }

  .hero-section {
    min-height: auto;
    padding: 3rem 0;
  }

  .display-3 {
    font-size: 2.5rem;
  }
}

/* ========================================
   Hero Section Styling
   ======================================== */

.hero-section {
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
  min-height: 70vh;
  display: flex;
  align-items: center;
}

[data-theme="dark"] .hero-section {
  background: linear-gradient(135deg, rgba(45, 55, 72, 0.3) 0%, rgba(26, 32, 44, 0.3) 100%);
}

.hero-content {
  animation: fadeInUp 0.8s ease-out;
}

.text-gradient {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.min-vh-50 {
  min-height: 50vh;
}

.floating-card {
  background: var(--card-bg);
  padding: 3rem;
  border-radius: 1rem;
  box-shadow: 0 20px 60px var(--shadow-md);
  animation: float 3s ease-in-out infinite;
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-20px);
  }
}

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

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ========================================
   Features Section Styling
   ======================================== */

.features-section {
  background-color: var(--bg-primary);
}

.feature-card {
  transition: all 0.3s ease;
  border-radius: 1rem;
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 35px var(--shadow-md);
}

.feature-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
}

[data-theme="dark"] .feature-icon {
  background: linear-gradient(135deg, rgba(45, 55, 72, 0.3) 0%, rgba(26, 32, 44, 0.3) 100%);
}