/*
Theme Name: Taimoor Asghar
Theme URI: https://taimoorasghar.com
Author: Dr. Taimoor Asghar
Author URI: https://taimoorasghar.com
Description: Custom WordPress theme for Dr. Taimoor Asghar — medical doctor, researcher, and data scientist. Preserves the original React site design and adds native WordPress blogging at /blog/.
Version: 2.1.0
License: GPL-2.0-or-later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: taimoorasghar
Requires at least: 6.0
Requires PHP: 7.4
*/

/* ================================================================
   WordPress Blog Styles — matches the React site design system
   ================================================================ */

:root {
  --color-bg-primary: #0A0A0C;
  --color-bg-secondary: #121216;
  --color-bg-tertiary: #1A1A20;
  --color-accent-gold: #D4A574;
  --color-accent-amber: #E8B87A;
  --color-accent-warm: #C9956B;
  --color-text-primary: #F5F0EB;
  --color-text-secondary: #A8A29E;
  --color-text-muted: #6B6560;
  --color-text-gold: #D4A574;

  --gradient-gold-radial: radial-gradient(ellipse at 30% 50%, rgba(212,165,116,0.08) 0%, transparent 70%);
  --gradient-gold-linear: linear-gradient(135deg, #D4A574 0%, #E8B87A 50%, #C9956B 100%);
  --gradient-dark-fade-up: linear-gradient(to top, #0A0A0C 0%, transparent 100%);

  --border-subtle: 1px solid rgba(212,165,116,0.08);
  --border-gold: 1px solid rgba(212,165,116,0.25);
  --glow-gold: 0 0 40px rgba(212,165,116,0.15);

  --text-display-lg: clamp(2.5rem, 5vw, 4.5rem);
  --text-display-md: clamp(1.8rem, 3.5vw, 3rem);
  --text-heading-lg: 1.75rem;
  --text-heading-md: 1.35rem;
  --text-body-lg: 1.125rem;
  --text-body-md: 1rem;
  --text-body-sm: 0.875rem;
  --text-label: 0.75rem;

  --leading-display-lg: 1.0;
  --leading-display-md: 1.1;
  --leading-heading-lg: 1.2;
  --leading-heading-md: 1.3;
  --leading-body: 1.7;

  --space-4: 16px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;

  --container-max: 1280px;
  --container-padding: clamp(1.5rem, 5vw, 4rem);

  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset & base */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: var(--leading-body);
}

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

a {
  color: var(--color-accent-gold);
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: var(--color-accent-amber);
}

/* WordPress alignment classes */
.alignleft { float: left; margin-right: 1.5rem; }
.alignright { float: right; margin-left: 1.5rem; }
.aligncenter { display: block; margin-left: auto; margin-right: auto; }
.wp-caption { max-width: 100%; }
.wp-caption-text { color: var(--color-text-muted); font-size: var(--text-body-sm); }

/* Container */
.ta-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

/* ================================================================
   Header
   ================================================================ */

.ta-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  height: 72px;
  background: rgba(10,10,12,0.95);
  backdrop-filter: blur(30px);
  border-bottom: 1px solid rgba(212,165,116,0.06);
}

.ta-header-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.ta-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.ta-logo-mark {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-accent-gold);
}

.ta-logo-text {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-primary);
}

.ta-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.ta-nav a {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--color-text-secondary);
  transition: color 0.3s ease, transform 0.3s ease;
}

.ta-nav a:hover {
  color: var(--color-accent-gold);
  transform: translateY(-1px);
}

.ta-nav a.ta-nav-current {
  color: var(--color-accent-gold);
}

.ta-nav-cta {
  background: var(--gradient-gold-linear);
  color: #0A0A0C !important;
  padding: 8px 20px;
  border-radius: 6px;
  font-weight: 500;
  font-size: 0.875rem;
}

.ta-nav-cta:hover {
  transform: scale(1.02);
}

/* Mobile menu */
.ta-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-accent-gold);
  cursor: pointer;
  padding: 0.5rem;
}

@media (max-width: 1024px) {
  .ta-menu-toggle { display: block; }
  .ta-nav { display: none; }
  .ta-nav.is-open {
    display: flex;
    flex-direction: column;
    position: fixed;
    inset: 72px 0 0 0;
    background: rgba(10,10,12,0.98);
    backdrop-filter: blur(30px);
    padding: 3rem 0;
    gap: 2rem;
  }
  .ta-nav.is-open a {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 1.75rem;
    color: var(--color-text-primary);
  }
}

/* ================================================================
   Page hero
   ================================================================ */

.ta-hero {
  position: relative;
  min-height: 45vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 120px;
  padding-bottom: var(--space-16);
  text-align: center;
  overflow: hidden;
}

.ta-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-gold-radial);
  pointer-events: none;
}

.ta-hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.ta-overline {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--text-label);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent-gold);
  margin-bottom: 1.5rem;
}

.ta-overline::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 1px;
  background: var(--color-accent-gold);
}

.ta-hero-title {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: var(--text-display-lg);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: var(--leading-display-lg);
  color: var(--color-text-primary);
  margin: 0;
}

.ta-hero-desc {
  font-size: var(--text-body-lg);
  color: var(--color-text-secondary);
  margin-top: 1rem;
  line-height: var(--leading-body);
}

/* ================================================================
   Blog cards
   ================================================================ */

.ta-section {
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
}

.ta-section-alt {
  background: var(--color-bg-secondary);
}

.ta-grid {
  display: grid;
  gap: 1.5rem;
}

.ta-grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.ta-grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 1024px) {
  .ta-grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .ta-grid-2,
  .ta-grid-3 { grid-template-columns: 1fr; }
}

.ta-card {
  display: flex;
  flex-direction: column;
  background: var(--color-bg-secondary);
  border: var(--border-subtle);
  border-radius: 14px;
  overflow: hidden;
  transition: border-color 0.4s var(--ease-out-expo),
              transform 0.4s var(--ease-out-expo),
              box-shadow 0.4s var(--ease-out-expo);
}

.ta-card:hover {
  border-color: rgba(212,165,116,0.25);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.ta-card-image {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--color-bg-tertiary);
}

.ta-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out-expo);
}

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

.ta-card-body {
  padding: var(--space-6);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.ta-card-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.75rem;
  font-size: var(--text-body-sm);
  color: var(--color-text-muted);
}

.ta-card-category {
  display: inline-block;
  background: rgba(212,165,116,0.15);
  color: var(--color-accent-gold);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 4px;
}

.ta-card-title {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: var(--text-heading-md);
  font-weight: 600;
  line-height: var(--leading-heading-md);
  color: var(--color-text-primary);
  margin: 0 0 0.75rem;
}

.ta-card-title a {
  color: inherit;
}

.ta-card-title a:hover {
  color: var(--color-accent-gold);
}

.ta-card-excerpt {
  font-size: var(--text-body-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.ta-card-readmore {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: auto;
  padding-top: 1.25rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-accent-gold);
}

.ta-card-readmore:hover {
  gap: 0.5rem;
}

/* ================================================================
   Single post
   ================================================================ */

.ta-single-hero {
  padding-top: 140px;
  padding-bottom: var(--space-12);
  text-align: center;
}

.ta-single-title {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: var(--text-display-md);
  font-weight: 600;
  line-height: var(--leading-display-md);
  color: var(--color-text-primary);
  max-width: 900px;
  margin: 0 auto 1.5rem;
}

.ta-single-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  color: var(--color-text-muted);
  font-size: var(--text-body-sm);
}

.ta-featured-image {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto var(--space-12);
  border-radius: 14px;
  overflow: hidden;
  border: var(--border-subtle);
}

.ta-featured-image img {
  width: 100%;
  aspect-ratio: 21 / 9;
  object-fit: cover;
}

.ta-content {
  max-width: 760px;
  margin: 0 auto;
  padding-bottom: var(--space-24);
}

.ta-content h2,
.ta-content h3,
.ta-content h4 {
  font-family: 'Playfair Display', Georgia, serif;
  color: var(--color-text-primary);
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  line-height: var(--leading-heading-lg);
}

.ta-content h2 { font-size: var(--text-heading-lg); }
.ta-content h3 { font-size: var(--text-heading-md); }

.ta-content p {
  font-size: var(--text-body-md);
  color: var(--color-text-secondary);
  margin-bottom: 1.5rem;
}

.ta-content ul,
.ta-content ol {
  color: var(--color-text-secondary);
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
}

.ta-content li {
  margin-bottom: 0.5rem;
}

.ta-content blockquote {
  margin: 2rem 0;
  padding: 1.5rem 2rem;
  border-left: 2px solid var(--color-accent-gold);
  background: var(--color-bg-secondary);
  border-radius: 0 8px 8px 0;
}

.ta-content blockquote p {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: var(--text-body-lg);
  color: var(--color-text-primary);
  margin: 0;
}

.ta-content code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.9em;
  background: var(--color-bg-tertiary);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  color: var(--color-accent-gold);
}

.ta-content pre {
  background: var(--color-bg-secondary);
  padding: 1.25rem;
  border-radius: 8px;
  overflow-x: auto;
  border: var(--border-subtle);
  margin-bottom: 1.5rem;
}

.ta-content pre code {
  background: transparent;
  padding: 0;
  color: var(--color-text-secondary);
}

.ta-content img {
  border-radius: 8px;
  margin: 2rem 0;
}

.ta-content a {
  border-bottom: 1px solid rgba(212,165,116,0.3);
}

.ta-content a:hover {
  border-bottom-color: var(--color-accent-gold);
}

/* ================================================================
   Pagination & navigation
   ================================================================ */

.ta-pagination {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: var(--space-12);
}

.ta-pagination a,
.ta-pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  height: 44px;
  padding: 0 0.75rem;
  border-radius: 6px;
  border: var(--border-subtle);
  background: var(--color-bg-secondary);
  color: var(--color-text-secondary);
  font-size: var(--text-body-sm);
  transition: all 0.3s ease;
}

.ta-pagination a:hover {
  border-color: rgba(212,165,116,0.25);
  color: var(--color-accent-gold);
}

.ta-pagination .current {
  background: var(--gradient-gold-linear);
  color: #0A0A0C;
  border-color: transparent;
  font-weight: 500;
}

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

.ta-footer {
  background: var(--color-bg-primary);
  border-top: 1px solid rgba(212,165,116,0.06);
  padding: 4rem 0 0;
}

.ta-footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
}

@media (max-width: 768px) {
  .ta-footer-grid { grid-template-columns: 1fr; gap: 2rem; }
}

.ta-footer-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--text-label);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent-gold);
  margin-bottom: 1rem;
}

.ta-footer p {
  font-size: var(--text-body-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin: 0 0 0.5rem;
}

.ta-footer a {
  display: inline-block;
  font-size: var(--text-body-sm);
  color: var(--color-text-secondary);
  margin-bottom: 0.5rem;
  transition: color 0.3s ease, transform 0.3s ease;
}

.ta-footer a:hover {
  color: var(--color-accent-gold);
  transform: translateX(2px);
}

.ta-footer-bottom {
  margin-top: 3rem;
  padding: 1.25rem 0;
  border-top: 1px solid rgba(212,165,116,0.04);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--color-text-muted);
}

/* ================================================================
   Utilities
   ================================================================ */

.ta-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.ta-text-center { text-align: center; }
.ta-mt-0 { margin-top: 0; }
.ta-mb-0 { margin-bottom: 0; }

/* No results / 404 */
.ta-empty {
  text-align: center;
  padding: var(--space-16) 0;
}

.ta-empty-title {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: var(--text-display-md);
  color: var(--color-text-primary);
  margin-bottom: 1rem;
}

.ta-empty p {
  color: var(--color-text-secondary);
  margin-bottom: 2rem;
}

.ta-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--gradient-gold-linear);
  color: #0A0A0C;
  padding: 12px 28px;
  border-radius: 6px;
  font-weight: 500;
  transition: transform 0.3s ease;
}

.ta-btn:hover {
  transform: scale(1.02);
  color: #0A0A0C;
}

/* ================================================================
   Filter buttons
   ================================================================ */

.ta-filter-btn {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border-radius: 6px;
  border: var(--border-subtle);
  background: var(--color-bg-secondary);
  color: var(--color-text-secondary);
  font-size: var(--text-body-sm);
  transition: all 0.3s ease;
}

.ta-filter-btn:hover,
.ta-filter-btn.is-active {
  background: rgba(212,165,116,0.15);
  border-color: rgba(212,165,116,0.25);
  color: var(--color-accent-gold);
}

/* ================================================================
   Author bio
   ================================================================ */

.ta-author-box {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
  background: var(--color-bg-secondary);
  border: var(--border-subtle);
  border-radius: 14px;
  padding: var(--space-6);
  margin-top: var(--space-12);
}

@media (max-width: 640px) {
  .ta-author-box {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}

.ta-author-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  border: 2px solid rgba(212,165,116,0.2);
}

.ta-author-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.ta-author-name {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: var(--text-heading-md);
  color: var(--color-text-primary);
  margin: 0 0 0.25rem;
}

.ta-author-role {
  font-size: var(--text-body-sm);
  color: var(--color-text-muted);
  margin: 0 0 0.75rem;
}

.ta-author-bio {
  font-size: var(--text-body-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin: 0;
}

/* ================================================================
   Social sharing
   ================================================================ */

.ta-share {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: var(--border-subtle);
}

.ta-share-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--text-label);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.ta-share a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-bg-tertiary);
  color: var(--color-text-secondary);
  transition: all 0.3s ease;
}

.ta-share a:hover {
  background: rgba(212,165,116,0.15);
  color: var(--color-accent-gold);
  transform: translateY(-2px);
}

/* ================================================================
   Reading progress / meta
   ================================================================ */

.ta-reading-time {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: var(--text-body-sm);
  color: var(--color-text-muted);
}

/* ================================================================
   CPT specific cards
   ================================================================ */

.ta-stat-grid {
  display: flex;
  gap: 2rem;
  justify-content: center;
  flex-wrap: wrap;
}

.ta-stat-item {
  text-align: center;
}

.ta-stat-number {
  font-size: var(--text-stat);
  font-weight: 700;
  color: var(--color-accent-gold);
  line-height: 1;
}

.ta-stat-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--text-label);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 0.5rem;
}