/* ==========================================================================
   KanzElSeha Ultra Modern Design System & Style Engine
   Author: Omar Khaled
   Target: Ultra-Fast WordPress Theme for Health & Medical Blogs
   ========================================================================== */

/* 1. CSS Custom Properties (Theme Variables) */
:root {
  /* Color Palette - Light Mode */
  --bg-primary: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-glass: rgba(255, 255, 255, 0.85);
  --bg-card: #ffffff;
  --bg-accent-soft: #f0fdf4;
  --border-color: #e2e8f0;

  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-inverse: #ffffff;

  --color-primary: #0d9488;
  --color-primary-dark: #0f766e;
  --color-primary-light: #14b8a6;
  --color-primary-glow: rgba(13, 148, 136, 0.15);

  --color-secondary: #0284c7;
  --color-amber: #f59e0b;
  --color-danger: #ef4444;
  --color-success: #10b981;

  /* Shadows & Glassmorphism */
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 4px 14px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 10px 30px rgba(15, 23, 42, 0.12);
  --shadow-glow: 0 0 20px rgba(13, 148, 136, 0.25);
  --glass-blur: blur(16px);

  /* Fonts */
  --font-heading: 'Cairo', system-ui, -apple-system, sans-serif;
  --font-body: 'Alexandria', system-ui, -apple-system, sans-serif;

  /* Layout Dimensions */
  --container-max: 1280px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 9999px;
  --header-height: 76px;

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Mode Variables */
[data-theme="dark"] {
  --bg-primary: #090d16;
  --bg-surface: #0f172a;
  --bg-surface-glass: rgba(15, 23, 42, 0.88);
  --bg-card: #1e293b;
  --bg-accent-soft: rgba(13, 148, 136, 0.12);
  --border-color: #1e293b;

  --text-main: #f1f5f9;
  --text-muted: #94a3b8;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 25px rgba(20, 184, 166, 0.3);
}

/* 2. Global Resets & Base Styles */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  direction: rtl;
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-main);
  scroll-behavior: smooth;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.3;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
}

/* 3. Reading Progress Bar */
#reading-progress-bar {
  position: fixed;
  top: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary-light), var(--color-secondary));
  width: 0%;
  z-index: 1000;
  transition: width 0.1s ease-out;
}

/* 4. Glassmorphism Top Navigation */
.header-navbar {
  position: sticky;
  top: 0;
  z-index: 900;
  background: var(--bg-surface-glass);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--border-color);
  height: var(--header-height);
  display: flex;
  align-items: center;
  transition: background-color var(--transition-normal);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-primary);
}

.custom-logo-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-fast);
}

.custom-logo-link:hover {
  transform: scale(1.02);
}

.custom-logo {
  max-height: 48px;
  width: auto;
  display: block;
  object-fit: contain;
}

.site-footer .custom-logo {
  max-height: 56px;
}

.brand-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: #fff;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  box-shadow: var(--shadow-glow);
}

.brand-title {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

[data-theme="dark"] .brand-title {
  background: linear-gradient(135deg, #ffffff, var(--color-primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}

.nav-link {
  font-weight: 600;
  font-size: 0.98rem;
  color: var(--text-muted);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
  background: var(--bg-accent-soft);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.1rem;
  transition: all var(--transition-fast);
}

.btn-icon:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.badge-count {
  position: absolute;
  top: -4px;
  left: -4px;
  background: var(--color-danger);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: var(--radius-pill);
}

/* 5. Live Search Modal Overlay */
.search-modal {
  position: fixed;
  inset: 0;
  z-index: 999;
  background: rgba(15, 23, 42, 0.7);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 100px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

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

.search-box {
  width: 100%;
  max-width: 680px;
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
  overflow: hidden;
  transform: translateY(-20px);
  transition: transform var(--transition-normal);
}

.search-modal.active .search-box {
  transform: translateY(0);
}

.search-header {
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  border-bottom: 1px solid var(--border-color);
}

.search-input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  font-family: var(--font-body);
  font-size: 1.15rem;
  color: var(--text-main);
}

.search-results {
  max-height: 420px;
  overflow-y: auto;
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.search-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px;
  border-radius: var(--radius-md);
  transition: background var(--transition-fast);
}

.search-item:hover {
  background: var(--bg-accent-soft);
}

.search-item-img {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-sm);
  object-fit: cover;
}

.search-item-info h4 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.search-item-info span {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* 6. Hero Featured Showcase Section */
.hero-section {
  padding: 40px 0 20px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
}

@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
}

.hero-card-main {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 440px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 32px;
  background-size: cover;
  background-position: center;
  box-shadow: var(--shadow-md);
  color: #ffffff;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(15, 23, 42, 0.92) 0%, rgba(15, 23, 42, 0.4) 60%, transparent 100%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.category-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: var(--color-primary);
  color: #fff;
  font-size: 0.82rem;
  font-weight: 700;
  border-radius: var(--radius-pill);
  margin-bottom: 12px;
  text-transform: uppercase;
}

.category-tag.danger {
  background: var(--color-danger);
}

.category-tag.amber {
  background: var(--color-amber);
}

.hero-title {
  font-size: 1.85rem;
  color: #ffffff;
  margin-bottom: 12px;
}

.hero-title a:hover {
  color: var(--color-primary-light);
}

.medical-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  color: #e2e8f0;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(8px);
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  margin-bottom: 16px;
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.85rem;
  color: #cbd5e1;
}

/* Secondary Hero Stack */
.hero-stack {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.hero-card-sm {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  gap: 16px;
  align-items: center;
  transition: all var(--transition-fast);
}

.hero-card-sm:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}

.hero-card-sm-img {
  width: 100px;
  height: 90px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  flex-shrink: 0;
}

.hero-card-sm-info h3 {
  font-size: 1rem;
  margin-bottom: 8px;
}

/* 7. Category Filter Pills Bar */
.category-bar-wrapper {
  margin: 30px 0;
  padding: 16px 0;
  border-y: 1px solid var(--border-color);
}

.category-pills {
  display: flex;
  align-items: center;
  gap: 12px;
  overflow-x: auto;
  padding-bottom: 8px;
  scrollbar-width: none;
}

.category-pills::-webkit-scrollbar {
  display: none;
}

.pill-btn {
  padding: 10px 22px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  color: var(--text-muted);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  white-space: nowrap;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.pill-btn:hover,
.pill-btn.active {
  background: var(--color-primary);
  color: #ffffff;
  border-color: var(--color-primary);
  box-shadow: var(--shadow-glow);
}

/* 8. Main Section Layout (Feed + Sidebar) */
.main-layout {
  display: grid;
  grid-template-columns: 2.5fr 1fr;
  gap: 32px;
  margin-bottom: 60px;
}

@media (max-width: 992px) {
  .main-layout {
    grid-template-columns: 1fr;
  }
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.section-title {
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-title::before {
  content: '';
  width: 6px;
  height: 24px;
  background: var(--color-primary);
  border-radius: var(--radius-pill);
}

/* Articles Grid */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 24px;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  position: relative;
}

.article-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-light);
}

.card-image-wrap {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.card-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.article-card:hover .card-image-wrap img {
  transform: scale(1.06);
}

.card-top-badges {
  position: absolute;
  top: 12px;
  right: 12px;
  left: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 2;
}

.card-content {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.card-title {
  font-size: 1.15rem;
  margin-bottom: 10px;
}

.card-title a:hover {
  color: var(--color-primary);
}

.card-excerpt {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-footer {
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.card-audio-btn {
  background: var(--bg-accent-soft);
  color: var(--color-primary);
  border: none;
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.8rem;
  transition: all var(--transition-fast);
}

.card-audio-btn:hover {
  background: var(--color-primary);
  color: #fff;
}

/* 9. Interactive Health Widgets (Sidebar) */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.widget-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}

.widget-title {
  font-size: 1.2rem;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-primary-glow);
  display: flex;
  align-items: center;
  gap: 8px;
}

/* BMI Calculator Widget */
.bmi-calculator {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.bmi-input-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.bmi-input-group label {
  font-size: 0.85rem;
  font-weight: 600;
}

.bmi-input-group input {
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-primary);
  color: var(--text-main);
  font-family: var(--font-body);
}

.btn-calc {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  border: none;
  padding: 12px;
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-weight: 700;
  cursor: pointer;
  transition: transform var(--transition-fast);
}

.btn-calc:hover {
  transform: scale(1.02);
}

.bmi-result-box {
  background: var(--bg-accent-soft);
  border: 1px solid var(--color-primary-light);
  border-radius: var(--radius-sm);
  padding: 14px;
  text-align: center;
  display: none;
}

.bmi-score {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--color-primary);
}

.bmi-status {
  font-size: 0.95rem;
  font-weight: 700;
}

/* Medical Reviewers Widget */
.reviewer-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--border-color);
}

.reviewer-card:last-child {
  border-bottom: none;
}

.reviewer-avatar {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-pill);
  object-fit: cover;
  border: 2px solid var(--color-primary);
}

.reviewer-info h4 {
  font-size: 0.95rem;
}

.reviewer-info p {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* 10. Single Article Page Layout */
.article-header {
  margin: 30px 0 24px;
}

.article-title-main {
  font-size: 2.2rem;
  margin-bottom: 16px;
  line-height: 1.3;
}

@media (max-width: 768px) {
  .article-title-main {
    font-size: 1.6rem;
  }
}

.article-doctor-banner {
  background: var(--bg-accent-soft);
  border: 1px solid var(--color-primary-light);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.doctor-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.font-resizer {
  display: flex;
  align-items: center;
  gap: 6px;
}

.font-resizer button {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  color: var(--text-main);
  font-weight: 700;
  cursor: pointer;
}

.article-featured-img {
  width: 100%;
  max-height: 500px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  margin-bottom: 28px;
}

.article-content-body {
  font-size: 1.12rem;
  line-height: 1.9;
  color: var(--text-main);
}

.article-content-body h2 {
  font-size: 1.6rem;
  margin: 32px 0 16px;
  color: var(--color-primary-dark);
  border-right: 4px solid var(--color-primary);
  padding-right: 12px;
}

[data-theme="dark"] .article-content-body h2 {
  color: var(--color-primary-light);
}

.article-content-body p {
  margin-bottom: 20px;
}

.medical-disclaimer-box {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid var(--color-amber);
  border-radius: var(--radius-md);
  padding: 18px;
  margin: 30px 0;
  font-size: 0.9rem;
  color: var(--text-main);
}

.medical-disclaimer-box strong {
  color: var(--color-amber);
}

/* 11. Footer Styling */
.site-footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  padding: 50px 0 30px;
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.92rem;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* Mobile Quick Navigation Bar */
.mobile-bottom-bar {
  display: none;
}

@media (max-width: 768px) {
  .mobile-bottom-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: var(--bg-surface-glass);
    backdrop-filter: var(--glass-blur);
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-around;
    z-index: 900;
  }

  .mobile-bar-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    font-size: 0.75rem;
    color: var(--text-muted);
  }

  .mobile-bar-item.active {
    color: var(--color-primary);
  }

  body {
    padding-bottom: 60px;
  }
}

/* ==========================================================================
   Font Icons (Font Awesome) RTL Adjustments & Styling
   ========================================================================== */
[dir="rtl"] i.fa-solid, 
[dir="rtl"] i.fa-regular, 
[dir="rtl"] i.fa-brands {
  margin-left: 6px;
}

/* Specific button / card alignments */
.btn-icon i {
  margin: 0 !important;
  font-size: 1.1rem;
}

.pill-btn i {
  margin-left: 0;
  margin-right: 6px;
}

.card-audio-btn i {
  margin-left: 4px;
}

.mobile-bar-item i {
  font-size: 1.2rem;
  margin-bottom: 2px;
  margin-left: 0 !important;
}

/* Micro-animations */
.btn-icon:hover i {
  transform: scale(1.15);
  transition: transform var(--transition-fast);
}

.bookmark-btn.saved i {
  color: var(--color-primary);
}

/* Premium Article Metadata Styling */
.article-meta {
  display: flex !important;
  align-items: center !important;
  gap: 16px !important;
  padding: 10px 16px !important;
  background: var(--bg-accent-soft) !important;
  border: 1px solid var(--color-primary-light) !important;
  border-radius: var(--radius-sm) !important;
  font-size: 0.88rem !important;
  color: var(--text-muted) !important;
  margin-bottom: 24px !important;
  flex-wrap: wrap !important;
  box-shadow: 0 1px 3px rgba(0,0,0,0.02);
}
.article-meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.article-meta span:not(:last-child)::after {
  content: "•";
  margin-inline-start: 16px;
  color: var(--color-primary-light);
  font-weight: bold;
}
[data-theme="dark"] .article-meta {
  background: rgba(13, 148, 136, 0.08) !important;
  border-color: rgba(13, 148, 136, 0.2) !important;
}