/* Oyde Admin Panel - Design System */

:root {
  /* Colors - Based on Oyde app design */
  --color-primary: #009688;
  --color-primary-light: #33AB9F;
  --color-primary-dark: #00796B;
  
  --color-accent: #FFCA28;
  --color-accent-light: #FFD54F;
  
  --color-success: #00C853;
  --color-error: #FF5252;
  --color-warning: #FF5252;
  --color-info: #009688;
  
  --color-background: #0F121A;
  --color-surface: #1A1F2E;
  --color-surface-elevated: #21283A;
  --color-card: #1A1F2E;
  --color-card-hover: #21283A;
  
  --color-border: #21283A;
  --color-border-light: #2A3248;
  
  --color-text: #FFFFFF;
  --color-text-secondary: #B0BEC5;
  --color-text-tertiary: #78909C;
  --color-text-inverse: #0F121A;
  
  /* Spacing - 8pt grid system */
  --spacing-xs: 4px;
  --spacing-s: 8px;
  --spacing-m: 16px;
  --spacing-l: 24px;
  --spacing-xl: 32px;
  --spacing-xxl: 40px;
  
  /* Border Radius */
  --radius-card: 20px;
  --radius-chip: 14px;
  --radius-button: 16px;
  --radius-input: 12px;
  --radius-badge: 8px;
  
  /* Shadows */
  --shadow-soft: 0 8px 14px rgba(0, 0, 0, 0.22);
  --shadow-medium: 0 4px 8px rgba(0, 0, 0, 0.15);
  --shadow-light: 0 2px 4px rgba(0, 0, 0, 0.1);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-medium: 0.3s ease;
  --transition-slow: 0.4s ease;
  
  /* Sidebar */
  --sidebar-width: 280px;
  --sidebar-collapsed-width: 80px;
  
  /* Header */
  --header-height: 64px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background: var(--color-background);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Layout */
.admin-container {
  display: flex;
  min-height: 100vh;
}

/* Auth Section - Improved Design */
.auth-container {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.auth-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 0;
}

.auth-gradient {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, 
    var(--color-background) 0%,
    var(--color-surface) 50%,
    var(--color-primary-dark) 100%
  );
  animation: gradientShift 15s ease infinite;
  background-size: 200% 200%;
}

@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.auth-shapes {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  overflow: hidden;
}

.auth-shape {
  position: absolute;
  border-radius: 50%;
  opacity: 0.1;
  animation: float 20s ease-in-out infinite;
}

.auth-shape-1 {
  width: 300px;
  height: 300px;
  background: var(--color-primary);
  top: -100px;
  right: -100px;
  animation-delay: 0s;
}

.auth-shape-2 {
  width: 200px;
  height: 200px;
  background: var(--color-accent);
  bottom: -50px;
  left: -50px;
  animation-delay: 5s;
}

.auth-shape-3 {
  width: 150px;
  height: 150px;
  background: var(--color-success);
  top: 50%;
  left: 10%;
  animation-delay: 10s;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  33% { transform: translate(30px, -30px) rotate(120deg); }
  66% { transform: translate(-20px, 20px) rotate(240deg); }
}

.auth-content {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 440px;
  padding: var(--spacing-l);
}

.auth-card {
  background: var(--color-card);
  border-radius: var(--radius-card);
  padding: var(--spacing-xl);
  border: 1px solid var(--color-border);
  box-shadow: 
    0 20px 60px rgba(0, 0, 0, 0.3),
    0 0 0 1px rgba(255, 255, 255, 0.05) inset,
    0 0 40px rgba(0, 150, 136, 0.1);
  backdrop-filter: blur(10px);
  animation: slideUp 0.5s ease-out;
}

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

.auth-logo {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.auth-logo-icon {
  font-size: 64px;
  margin-bottom: var(--spacing-m);
  display: inline-block;
  animation: pulse 2s ease-in-out infinite;
}

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

.auth-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 var(--spacing-xs) 0;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.auth-subtitle {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin: 0;
}

.auth-form {
  margin-top: var(--spacing-l);
}

.form-label-icon {
  display: inline-block;
  margin-right: var(--spacing-s);
  font-size: 16px;
}

.auth-submit {
  width: 100%;
  margin-top: var(--spacing-l);
  padding: var(--spacing-m) var(--spacing-l);
  font-size: 16px;
  font-weight: 600;
  position: relative;
  overflow: hidden;
}

.auth-submit::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.auth-submit:hover::before {
  width: 300px;
  height: 300px;
}

.btn-loading {
  display: inline-block;
  animation: spin 1s linear infinite;
}

.btn-loading.hidden {
  display: none;
}

.auth-error {
  background: var(--color-error);
  color: var(--color-text);
  padding: var(--spacing-m);
  border-radius: var(--radius-input);
  margin-bottom: var(--spacing-m);
  font-size: 14px;
  text-align: center;
  animation: shake 0.5s ease;
}

.auth-error.hidden {
  display: none;
}

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

/* Sidebar */
.sidebar {
  width: var(--sidebar-width);
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  position: fixed;
  height: 100vh;
  left: 0;
  top: 0;
  z-index: 100;
  transition: transform var(--transition-medium);
  overflow-y: auto;
}

.sidebar.collapsed {
  width: var(--sidebar-collapsed-width);
}

.sidebar-header {
  padding: var(--spacing-l);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: var(--spacing-m);
}

.sidebar-logo {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-primary);
  white-space: nowrap;
  overflow: hidden;
}

.sidebar.collapsed .sidebar-logo {
  display: none;
}

.sidebar-nav {
  padding: var(--spacing-m);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-m);
  padding: var(--spacing-m);
  border-radius: var(--radius-button);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: all var(--transition-fast);
  cursor: pointer;
  margin-bottom: var(--spacing-xs);
}

.nav-item:hover {
  background: var(--color-surface-elevated);
  color: var(--color-text);
}

.nav-item.active {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: var(--color-text);
  box-shadow: 0 4px 12px rgba(0, 150, 136, 0.3);
  transform: translateX(4px);
  position: relative;
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 60%;
  background: var(--color-accent);
  border-radius: 0 2px 2px 0;
}

.nav-item-icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.nav-item-text {
  white-space: nowrap;
  overflow: hidden;
}

.sidebar.collapsed .nav-item-text {
  display: none;
}

/* Main Content */
.main-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  transition: margin-left var(--transition-medium);
}

.sidebar.collapsed ~ .main-content {
  margin-left: var(--sidebar-collapsed-width);
}

/* Header */
.header {
  height: var(--header-height);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--spacing-l);
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-left {
  display: flex;
  align-items: center;
  gap: var(--spacing-m);
}

.header-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text);
}

.header-right {
  display: flex;
  align-items: center;
  gap: var(--spacing-m);
}

/* Content Area */
.content {
  padding: var(--spacing-xl);
}

/* Cards */
.card {
  background: var(--color-card);
  border-radius: var(--radius-card);
  padding: var(--spacing-l);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-soft);
  transition: all var(--transition-fast);
}

.card:hover {
  background: var(--color-card-hover);
  box-shadow: var(--shadow-medium);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-l);
  padding-bottom: var(--spacing-m);
  border-bottom: 1px solid var(--color-border);
  position: relative;
}

.card-header::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), transparent);
  border-radius: 2px;
}

.card-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text);
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-s);
  padding: var(--spacing-m) var(--spacing-l);
  border-radius: var(--radius-button);
  font-size: 14px;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-text);
}

.btn-primary:hover:not(:disabled) {
  background: var(--color-primary-light);
  transform: translateY(-1px);
  box-shadow: var(--shadow-light);
}

.btn-secondary {
  background: var(--color-surface-elevated);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--color-card-hover);
}

.btn-danger {
  background: var(--color-error);
  color: var(--color-text);
}

.btn-danger:hover:not(:disabled) {
  background: #E53935;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(255, 82, 82, 0.4);
}

.btn-sm {
  padding: var(--spacing-s) var(--spacing-m);
  font-size: 12px;
}

.btn-icon {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Forms */
.form-group {
  margin-bottom: var(--spacing-l);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-s);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--spacing-m);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-input);
  color: var(--color-text);
  font-size: 14px;
  font-family: inherit;
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 150, 136, 0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
}

.form-error {
  margin-top: var(--spacing-xs);
  font-size: 12px;
  color: var(--color-error);
}

.form-help {
  margin-top: var(--spacing-xs);
  font-size: 12px;
  color: var(--color-text-tertiary);
}

/* Tables */
.table-container {
  overflow-x: auto;
  border-radius: var(--radius-card);
  border: 1px solid var(--color-border);
  background: var(--color-card);
}

.table {
  width: 100%;
  border-collapse: collapse;
}

.table thead {
  background: var(--color-surface);
}

.table th {
  padding: var(--spacing-m);
  text-align: left;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--color-border);
}

.table td {
  padding: var(--spacing-m);
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-secondary);
}

.table tbody tr {
  transition: all var(--transition-fast);
}

.table tbody tr:nth-child(even) {
  background: var(--color-surface);
}

.table tbody tr:hover {
  background: var(--color-surface-elevated);
  transform: translateX(4px);
  box-shadow: -4px 0 0 var(--color-primary);
}

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

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-xs) var(--spacing-m);
  border-radius: var(--radius-badge);
  font-size: 12px;
  font-weight: 500;
}

.badge-primary {
  background: var(--color-primary);
  color: var(--color-text);
}

.badge-success {
  background: var(--color-success);
  color: var(--color-text);
}

.badge-error {
  background: var(--color-error);
  color: var(--color-text);
}

.badge-gold {
  background: var(--color-accent);
  color: var(--color-text-inverse);
}

.badge-secondary {
  background: var(--color-surface-elevated);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
}

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: var(--spacing-l);
  opacity: 0;
  animation: fadeIn var(--transition-fast) forwards;
}

.modal {
  background: var(--color-card);
  border-radius: var(--radius-card);
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 
    0 20px 60px rgba(0, 0, 0, 0.4),
    0 0 0 1px rgba(255, 255, 255, 0.05) inset;
  transform: scale(0.95);
  animation: scaleIn var(--transition-medium) forwards;
  border: 1px solid var(--color-border);
}

.modal-header {
  padding: var(--spacing-l);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text);
}

.modal-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-chip);
  background: transparent;
  border: none;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background: var(--color-surface-elevated);
  color: var(--color-text);
}

.modal-body {
  padding: var(--spacing-l);
}

.modal-footer {
  padding: var(--spacing-l);
  border-top: 1px solid var(--color-border);
  display: flex;
  gap: var(--spacing-m);
  justify-content: flex-end;
}

/* Toast */
.toast-container {
  position: fixed;
  top: var(--spacing-l);
  right: var(--spacing-l);
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-s);
}

.toast {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-button);
  padding: var(--spacing-m) var(--spacing-l);
  box-shadow: var(--shadow-soft);
  display: flex;
  align-items: center;
  gap: var(--spacing-m);
  min-width: 300px;
  max-width: 400px;
  animation: slideInRight var(--transition-medium) forwards;
}

.toast-success {
  border-left: 4px solid var(--color-success);
}

.toast-error {
  border-left: 4px solid var(--color-error);
}

.toast-info {
  border-left: 4px solid var(--color-info);
}

.toast-message {
  flex: 1;
  color: var(--color-text);
  font-size: 14px;
}

.toast-close {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--color-text-secondary);
  cursor: pointer;
  border-radius: var(--radius-chip);
  transition: all var(--transition-fast);
}

.toast-close:hover {
  background: var(--color-surface-elevated);
  color: var(--color-text);
}

/* Image Upload */
.image-upload {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-input);
  padding: var(--spacing-xl);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  background: var(--color-surface);
}

.image-upload:hover {
  border-color: var(--color-primary);
  background: var(--color-surface-elevated);
}

.image-upload.dragover {
  border-color: var(--color-primary);
  background: rgba(0, 150, 136, 0.1);
}

.image-upload-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--spacing-m);
  color: var(--color-text-secondary);
}

.image-upload-text {
  color: var(--color-text-secondary);
  font-size: 14px;
}

.image-preview {
  margin-top: var(--spacing-m);
  border-radius: var(--radius-input);
  overflow: hidden;
  max-width: 100%;
}

.image-preview img {
  width: 100%;
  height: auto;
  display: block;
}

/* Ad Preview */
.ad-preview {
  background: var(--color-surface);
  border-radius: var(--radius-card);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.ad-preview-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  background: var(--color-surface-elevated);
}

.ad-preview-content {
  padding: var(--spacing-l);
}

.ad-preview-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--spacing-s);
}

.ad-preview-subtitle {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-m);
}

.ad-preview-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-s);
  padding: var(--spacing-s) var(--spacing-m);
  background: var(--color-primary);
  color: var(--color-text);
  border-radius: var(--radius-button);
  font-size: 14px;
  font-weight: 500;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: var(--spacing-xxl);
  color: var(--color-text-secondary);
}

.empty-state-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--spacing-m);
  color: var(--color-text-tertiary);
}

.empty-state-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--spacing-s);
}

.empty-state-text {
  font-size: 14px;
  color: var(--color-text-secondary);
}

/* Loading */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xxl);
}

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* Animations */
@keyframes fadeIn {
  to {
    opacity: 1;
  }
}

@keyframes scaleIn {
  to {
    transform: scale(1);
  }
}

@keyframes slideInRight {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Responsive */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }
  
  .sidebar.open {
    transform: translateX(0);
  }
  
  .main-content {
    margin-left: 0;
  }
  
  .content {
    padding: var(--spacing-m);
  }
  
  .modal {
    max-width: 100%;
    margin: var(--spacing-m);
  }
}

/* Utilities */
.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.items-center {
  align-items: center;
}

.justify-between {
  justify-content: space-between;
}

.gap-s {
  gap: var(--spacing-s);
}

.gap-m {
  gap: var(--spacing-m);
}

.gap-l {
  gap: var(--spacing-l);
}

.mb-s {
  margin-bottom: var(--spacing-s);
}

.mb-m {
  margin-bottom: var(--spacing-m);
}

.mb-l {
  margin-bottom: var(--spacing-l);
}

.mt-l {
  margin-top: var(--spacing-l);
}

.hidden {
  display: none;
}

.text-center {
  text-align: center;
}

.text-right {
  text-align: right;
}