/* ============================================
   Sharing Vision Dashboard - Design System
   Modern dark theme with glassmorphism
   ============================================ */

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

/* CSS Custom Properties */
:root {
  /* Color Palette */
  --bg-primary: #0f0f1a;
  --bg-secondary: #1a1a2e;
  --bg-card: rgba(30, 30, 55, 0.7);
  --bg-card-hover: rgba(40, 40, 70, 0.8);
  --bg-input: rgba(255, 255, 255, 0.05);
  --bg-input-focus: rgba(255, 255, 255, 0.08);

  /* Accent Colors */
  --accent-primary: #7c3aed;
  --accent-secondary: #3b82f6;
  --accent-gradient: linear-gradient(135deg, #7c3aed 0%, #3b82f6 100%);
  --accent-gradient-hover: linear-gradient(135deg, #8b5cf6 0%, #60a5fa 100%);

  /* Status Colors */
  --color-publish: #10b981;
  --color-publish-bg: rgba(16, 185, 129, 0.15);
  --color-draft: #f59e0b;
  --color-draft-bg: rgba(245, 158, 11, 0.15);
  --color-thrash: #ef4444;
  --color-thrash-bg: rgba(239, 68, 68, 0.15);

  /* Text Colors */
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  /* Borders */
  --border-color: rgba(255, 255, 255, 0.08);
  --border-color-hover: rgba(255, 255, 255, 0.15);

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px rgba(124, 58, 237, 0.3);

  /* Spacing */
  --container-max: 1200px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 400ms ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Background Gradient Orbs */
body::before,
body::after {
  content: '';
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.15;
  pointer-events: none;
  z-index: -1;
}

body::before {
  width: 500px;
  height: 500px;
  background: var(--accent-primary);
  top: -150px;
  right: -100px;
}

body::after {
  width: 400px;
  height: 400px;
  background: var(--accent-secondary);
  bottom: -100px;
  left: -100px;
}

/* ============================================
   Navigation
   ============================================ */
.navbar {
  background: rgba(15, 15, 26, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  padding: 0 2rem;
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1.25rem;
}

.navbar-brand .logo-icon {
  width: 36px;
  height: 36px;
  background: var(--accent-gradient);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.navbar-nav {
  display: flex;
  list-style: none;
  gap: 4px;
}

.navbar-nav a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--transition-normal);
  position: relative;
}

.navbar-nav a:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.navbar-nav a.active {
  color: var(--text-primary);
  background: rgba(124, 58, 237, 0.15);
}

.navbar-nav a.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 2px;
  background: var(--accent-gradient);
  border-radius: 1px;
}

/* ============================================
   Container & Layout
   ============================================ */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 2rem;
}

.page-header {
  margin-bottom: 2rem;
}

.page-title {
  font-size: 1.75rem;
  font-weight: 700;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
}

.page-subtitle {
  color: var(--text-secondary);
  font-size: 0.925rem;
}

/* ============================================
   Tabs Component
   ============================================ */
.tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 1.5rem;
  background: var(--bg-secondary);
  padding: 4px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.tab-btn {
  flex: 1;
  padding: 10px 20px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-normal);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.tab-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.tab-btn.active {
  color: var(--text-primary);
  background: var(--accent-gradient);
  box-shadow: var(--shadow-glow);
}

.tab-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  height: 22px;
  padding: 0 6px;
  border-radius: 11px;
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.15);
}

.tab-btn.active .tab-badge {
  background: rgba(255, 255, 255, 0.25);
}

/* ============================================
   Cards / Glass Panel
   ============================================ */
.card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: all var(--transition-normal);
}

.card:hover {
  border-color: var(--border-color-hover);
  box-shadow: var(--shadow-md);
}

/* ============================================
   Table
   ============================================ */
.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

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

.data-table thead {
  background: rgba(255, 255, 255, 0.03);
}

.data-table th {
  padding: 14px 20px;
  text-align: left;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.data-table td {
  padding: 14px 20px;
  font-size: 0.9rem;
  color: var(--text-primary);
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

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

.data-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.03);
}

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

/* Status Badge */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
}

.status-badge.publish {
  background: var(--color-publish-bg);
  color: var(--color-publish);
}

.status-badge.draft {
  background: var(--color-draft-bg);
  color: var(--color-draft);
}

.status-badge.thrash {
  background: var(--color-thrash-bg);
  color: var(--color-thrash);
}

.status-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

/* Action Buttons */
.action-btns {
  display: flex;
  gap: 8px;
}

.action-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-color);
  background: transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 1rem;
  transition: all var(--transition-normal);
}

.action-btn:hover {
  border-color: var(--border-color-hover);
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.action-btn.edit:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  background: rgba(124, 58, 237, 0.1);
}

.action-btn.trash:hover {
  border-color: var(--color-thrash);
  color: var(--color-thrash);
  background: rgba(239, 68, 68, 0.1);
}

/* ============================================
   Forms
   ============================================ */
.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-label .required {
  color: var(--color-thrash);
  margin-left: 2px;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.925rem;
  transition: all var(--transition-normal);
  outline: none;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  background: var(--bg-input-focus);
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.15);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-muted);
}

.form-textarea {
  min-height: 200px;
  resize: vertical;
}

.form-helper {
  margin-top: 0.375rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.form-error {
  margin-top: 0.375rem;
  font-size: 0.8rem;
  color: var(--color-thrash);
}

.form-input.error,
.form-textarea.error {
  border-color: var(--color-thrash);
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

.char-count {
  text-align: right;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.char-count.warning {
  color: var(--color-draft);
}

.char-count.valid {
  color: var(--color-publish);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 24px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
  white-space: nowrap;
}

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

.btn-publish {
  background: var(--color-publish);
  color: white;
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.3);
}

.btn-publish:hover:not(:disabled) {
  background: #059669;
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
  transform: translateY(-1px);
}

.btn-draft {
  background: var(--color-draft);
  color: #1a1a2e;
  box-shadow: 0 4px 14px rgba(245, 158, 11, 0.3);
}

.btn-draft:hover:not(:disabled) {
  background: #d97706;
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
  transform: translateY(-1px);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--border-color-hover);
}

.btn-gradient {
  background: var(--accent-gradient);
  color: white;
  box-shadow: var(--shadow-glow);
}

.btn-gradient:hover:not(:disabled) {
  background: var(--accent-gradient-hover);
  box-shadow: 0 0 30px rgba(124, 58, 237, 0.4);
  transform: translateY(-1px);
}

.form-actions {
  display: flex;
  gap: 12px;
  margin-top: 2rem;
}

/* ============================================
   Toast / Notification
   ============================================ */
.toast-container {
  position: fixed;
  top: 80px;
  right: 20px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  padding: 14px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  color: white;
  min-width: 300px;
  max-width: 450px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 10px;
  animation: slideIn 0.3s ease, fadeOut 0.3s ease 2.7s forwards;
}

.toast.success {
  background: linear-gradient(135deg, #059669, #10b981);
}

.toast.error {
  background: linear-gradient(135deg, #dc2626, #ef4444);
}

.toast.info {
  background: linear-gradient(135deg, #2563eb, #3b82f6);
}

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

@keyframes fadeOut {
  to {
    opacity: 0;
    transform: translateX(100%);
  }
}

/* ============================================
   Pagination
   ============================================ */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: 2rem;
}

.pagination-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--transition-normal);
}

.pagination-btn:hover:not(:disabled) {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  background: rgba(124, 58, 237, 0.1);
}

.pagination-btn.active {
  background: var(--accent-gradient);
  border-color: transparent;
  color: white;
  box-shadow: var(--shadow-glow);
}

.pagination-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

/* ============================================
   Blog Preview Cards
   ============================================ */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.5rem;
}

.blog-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-slow);
  cursor: default;
}

.blog-card:hover {
  transform: translateY(-4px);
  border-color: rgba(124, 58, 237, 0.3);
  box-shadow: var(--shadow-lg), 0 0 30px rgba(124, 58, 237, 0.1);
}

.blog-card-header {
  height: 8px;
  background: var(--accent-gradient);
}

.blog-card-body {
  padding: 1.5rem;
}

.blog-card-category {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  background: rgba(124, 58, 237, 0.15);
  color: #a78bfa;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
}

.blog-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  line-height: 1.4;
}

.blog-card-content {
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-card-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.blog-card-date {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ============================================
   Empty State
   ============================================ */
.empty-state {
  text-align: center;
  padding: 4rem 2rem;
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  opacity: 0.5;
}

.empty-state-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.empty-state-text {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* ============================================
   Loading Spinner
   ============================================ */
.spinner-overlay {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-color);
  border-top-color: var(--accent-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ============================================
   Modal / Dialog
   ============================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  max-width: 400px;
  width: 90%;
  box-shadow: var(--shadow-lg);
  transform: scale(0.95);
  transition: transform var(--transition-normal);
}

.modal-overlay.active .modal {
  transform: scale(1);
}

.modal-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.modal-text {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.modal-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 768px) {
  .container {
    padding: 1rem;
  }

  .navbar {
    padding: 0 1rem;
  }

  .navbar-nav {
    gap: 2px;
  }

  .navbar-nav a {
    padding: 6px 10px;
    font-size: 0.8rem;
  }

  .navbar-nav a span.nav-text {
    display: none;
  }

  .tabs {
    flex-direction: column;
  }

  .blog-grid {
    grid-template-columns: 1fr;
  }

  .form-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .data-table th,
  .data-table td {
    padding: 10px 12px;
  }
}

@media (max-width: 480px) {
  .page-title {
    font-size: 1.4rem;
  }

  .navbar-brand span {
    display: none;
  }
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.5s ease forwards;
}

.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }
.stagger-4 { animation-delay: 0.4s; }