/* ===== JSON error banner ===== */
.json-error-banner {
  background: #7f1d1d;
  color: #fef2f2;
  padding: 1rem 0;
  border-bottom: 3px solid #fca5a5;
}

.json-error-inner strong {
  display: block;
  font-size: 1.05rem;
  margin-bottom: 0.75rem;
}

.json-error-inner pre {
  background: rgba(0, 0, 0, 0.25);
  padding: 1rem;
  border-radius: var(--radius);
  font-size: 0.85rem;
  line-height: 1.5;
  overflow-x: auto;
  white-space: pre-wrap;
  margin-bottom: 0.75rem;
}

.json-error-hint {
  font-size: 0.9rem;
  opacity: 0.95;
}

.json-error-hint a {
  color: #fecaca;
  text-decoration: underline;
}

.json-error-hint code {
  background: rgba(0, 0, 0, 0.2);
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
}

body.has-json-error main {
  opacity: 0.45;
  pointer-events: none;
}

.pub-sync-note.is-error {
  background: #fef2f2;
  border-color: #fecaca;
  color: #991b1b;
}

.pub-sync-note.is-loading {
  background: var(--color-bg-alt);
  border-color: var(--color-border);
}

/* ===== API loading indicator ===== */
.api-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 1.5rem;
  color: var(--color-text-muted);
}

.scholar-metrics-grid .api-loading,
.publications-list .api-loading {
  min-height: 4rem;
}

.scholar-metrics-bar.is-loading .scholar-metrics-heading {
  opacity: 0.7;
}

.api-loading-spinner {
  width: 1.25rem;
  height: 1.25rem;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: api-spin 0.7s linear infinite;
  flex-shrink: 0;
}

.api-loading-text {
  font-size: 0.95rem;
}

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

/* ===== Scholar metrics bar ===== */
.scholar-metrics-bar {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 1.75rem 0;
  box-shadow: var(--shadow-sm);
}

.scholar-metrics-heading {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
  text-align: center;
}

.scholar-metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 1rem;
}

.scholar-metric-card {
  text-align: center;
  padding: 1rem 0.75rem;
  background: var(--color-bg-alt);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.scholar-metric-value {
  display: block;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
}

.scholar-metric-label {
  display: block;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: 0.35rem;
}

.scholar-metrics-message {
  text-align: center;
  color: var(--color-text-muted);
  grid-column: 1 / -1;
  padding: 0.5rem;
}

.scholar-metrics-source {
  text-align: center;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: 0.75rem;
  opacity: 0.85;
}

.pub-total-summary {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-primary);
  margin: -0.5rem 0 1rem;
}

.pub-sync-note {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin: -1rem 0 1.25rem;
  padding: 0.75rem 1rem;
  background: var(--color-surface);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.pub-auto-badge {
  display: inline-block;
  margin-left: 0.35rem;
  padding: 0.1rem 0.4rem;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  background: #dbeafe;
  color: #1e40af;
  border-radius: 4px;
  vertical-align: middle;
}

body[dir="rtl"] .pub-auto-badge {
  margin-left: 0;
  margin-right: 0.35rem;
}

.students-summary {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
  padding: 0.75rem 1rem;
  background: var(--color-surface);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.pub-more-wrap {
  margin-top: 1.5rem;
  text-align: center;
}

.pub-more-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 1.5rem;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius);
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  cursor: pointer;
  transition: all 0.2s ease;
  min-width: 160px;
}

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

.pub-count-note {
  margin-top: 0.75rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* ===== Labs page ===== */
.page-hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: #fff;
  padding: 3rem 0;
}

.page-hero-label a {
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.9rem;
}

.page-hero-label a:hover {
  color: #fff;
}

.page-hero-title {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  margin: 0.5rem 0 1rem;
}

.page-hero-text {
  max-width: 720px;
  opacity: 0.92;
  line-height: 1.7;
}

.labs-page-list {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.lab-page-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.lab-page-header {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 1.5rem;
  align-items: start;
  margin-bottom: 1.5rem;
}

.lab-page-cover {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: var(--radius);
  background: var(--color-bg-alt);
}

.lab-page-cover.is-hidden {
  display: none;
}

.lab-page-title {
  font-size: 1.35rem;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
}

.lab-page-desc {
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 0.75rem;
}

.lab-gallery-title {
  font-size: 1rem;
  color: var(--color-primary);
  margin-bottom: 1rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--color-border);
}

.lab-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1rem;
}

.lab-gallery-item img {
  width: 100%;
  height: 140px;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.lab-gallery-placeholder {
  position: relative;
}

.lab-gallery-slot {
  height: 140px;
  border-radius: var(--radius);
  border: 2px dashed var(--color-border);
  background: var(--color-bg-alt);
}

.lab-gallery-note {
  grid-column: 1 / -1;
  text-align: center;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-top: 0.25rem;
}

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

/* ===== Variables ===== */
:root {
  --color-primary: #1a365d;
  --color-primary-light: #2c5282;
  --color-accent: #c9a227;
  --color-bg: #fafbfc;
  --color-bg-alt: #f0f4f8;
  --color-surface: #ffffff;
  --color-text: #1a202c;
  --color-text-muted: #4a5568;
  --color-border: #e2e8f0;
  --font-en: 'Inter', system-ui, sans-serif;
  --font-fa: 'Vazirmatn', 'Tahoma', sans-serif;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --radius: 8px;
  --header-height: 64px;
  --transition: 0.2s ease;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-en);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
}

body[dir="rtl"] {
  font-family: var(--font-fa);
}

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

a {
  color: var(--color-primary-light);
  text-decoration: none;
  transition: color var(--transition);
}

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

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ===== Header & Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  height: var(--header-height);
}

.site-header .nav {
  position: relative;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 0.75rem;
  min-width: 0;
}

.nav-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--color-primary);
  flex: 0 1 auto;
  min-width: 0;
  text-decoration: none;
}

.nav-logo-img {
  width: 32px;
  height: 32px;
  object-fit: contain;
  flex-shrink: 0;
}

.nav-logo-text {
  line-height: 1.2;
  white-space: nowrap;
}

.nav-logo:hover {
  color: var(--color-primary-light);
}

.nav-logo:hover .nav-logo-text {
  color: var(--color-primary-light);
}

.nav-links {
  display: none;
  position: absolute;
  top: var(--header-height);
  left: 0;
  right: 0;
  flex-direction: column;
  align-items: stretch;
  gap: 0;
  list-style: none;
  margin: 0;
  padding: 1rem;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  z-index: 10;
}

body[dir="rtl"] .nav-links {
  left: 0;
  right: 0;
}

.nav-links.open {
  display: flex;
}

.nav-links a {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  border-radius: var(--radius);
  transition: background var(--transition), color var(--transition);
  white-space: nowrap;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-primary);
  background: var(--color-bg-alt);
}

.lang-switch {
  display: flex;
  gap: 0.25rem;
  flex-shrink: 0;
}

.nav-controls {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-shrink: 0;
  margin-inline-start: auto;
}

.lang-btn {
  padding: 0.35rem 0.65rem;
  font-size: 0.8rem;
  font-weight: 600;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all var(--transition);
}

.lang-btn:hover {
  border-color: var(--color-primary-light);
  color: var(--color-primary);
}

.lang-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  flex-shrink: 0;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: var(--transition);
}

@media (min-width: 769px) {
  .nav-links {
    display: flex;
    position: static;
    flex-direction: row;
    align-items: center;
    justify-content: flex-end;
    flex: 1 1 auto;
    min-width: 0;
    gap: 0.05rem;
    background: none;
    border: none;
    padding: 0;
    box-shadow: none;
    flex-wrap: nowrap;
  }

  .nav-links a {
    width: auto;
    padding: 0.28rem 0.38rem;
    font-size: 0.72rem;
    letter-spacing: -0.01em;
  }
}

@media (max-width: 1100px) and (min-width: 769px) {
  .nav-logo-text {
    display: none;
  }
}

@media (max-width: 768px) {
  .nav {
    justify-content: flex-start;
  }

  .nav-logo {
    flex: 0 0 auto;
  }

  .nav-controls {
    margin-inline-start: auto;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-links {
    display: none;
  }

  .nav-links.open {
    display: flex;
  }
}

/* ===== Hero ===== */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: #fff;
  padding: 4rem 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3rem;
  align-items: center;
}

.hero-label {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  opacity: 0.85;
  margin-bottom: 0.5rem;
}

.hero-name {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 0.5rem;
}

.hero-title {
  font-size: 1.15rem;
  opacity: 0.95;
  margin-bottom: 0.25rem;
}

.hero-affiliation {
  font-size: 0.95rem;
  opacity: 0.8;
  margin-bottom: 1.5rem;
}

.hero-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  padding: 0.6rem 1.25rem;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius);
  transition: all var(--transition);
  cursor: pointer;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-primary);
  border: 2px solid var(--color-accent);
}

.btn-primary:hover {
  background: #d4ad2e;
  border-color: #d4ad2e;
  color: var(--color-primary);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.6);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: #fff;
  color: #fff;
}

.social-links {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  transition: background var(--transition);
}

.social-links a:hover {
  background: rgba(255, 255, 255, 0.3);
  color: #fff;
}

.hero-photo-wrap {
  flex-shrink: 0;
}

.hero-photo {
  width: 220px;
  height: 220px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.1);
}

/* ===== Sections ===== */
.section {
  padding: 4rem 0;
}

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

.section-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 2rem;
  padding-bottom: 0.75rem;
  border-bottom: 3px solid var(--color-accent);
  display: inline-block;
}

/* ===== About ===== */
.about-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 2.5rem;
  align-items: start;
}

.about-text {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  line-height: 1.8;
}

.research-interests h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag-list li {
  padding: 0.4rem 0.85rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* ===== Cards (Labs) ===== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--color-surface);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: box-shadow var(--transition), transform var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card-image {
  width: 100%;
  height: 160px;
  object-fit: cover;
  background: var(--color-bg-alt);
}

.card-body {
  padding: 1.25rem;
}

.card-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.card-text {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 0.75rem;
}

.card-link {
  font-size: 0.875rem;
  font-weight: 600;
}

/* ===== Publications ===== */
.pub-filters {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.4rem 1rem;
  font-size: 0.85rem;
  font-weight: 500;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  background: var(--color-surface);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

.publications-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.pub-item {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--color-surface);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  transition: border-color var(--transition);
}

.pub-item:hover {
  border-color: var(--color-primary-light);
}

.pub-item.featured {
  border-left: 4px solid var(--color-accent);
}

body[dir="rtl"] .pub-item.featured {
  border-left: 1px solid var(--color-border);
  border-right: 4px solid var(--color-accent);
}

.pub-year {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  text-align: center;
}

.pub-title {
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.25rem;
}

.pub-title a {
  color: inherit;
}

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

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

.pub-type {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  background: var(--color-bg-alt);
  border-radius: 4px;
  color: var(--color-primary);
  margin-bottom: 0.35rem;
}

/* ===== Students ===== */
.students-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.tab-btn {
  padding: 0.5rem 1.25rem;
  font-size: 0.9rem;
  font-weight: 600;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all var(--transition);
}

.tab-btn:hover,
.tab-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

.students-panel {
  display: none;
}

.students-panel.active {
  display: block;
}

.student-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-surface);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.student-table th,
.student-table td {
  padding: 0.85rem 1rem;
  text-align: start;
  border-bottom: 1px solid var(--color-border);
}

.student-table th {
  background: var(--color-primary);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 600;
}

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

.student-table tr:hover td {
  background: var(--color-bg-alt);
}

.students-empty {
  text-align: center;
  color: var(--color-text-muted);
  padding: 2rem 1rem;
  background: var(--color-surface);
  border-radius: var(--radius);
  border: 1px dashed var(--color-border);
}

.student-table-wrap {
  overflow-x: auto;
}

/* ===== Courses ===== */
.courses-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
}

.course-card {
  padding: 1.25rem;
  background: var(--color-surface);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-accent);
}

.course-code {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.course-name {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-primary);
  margin: 0.25rem 0;
}

.course-semester {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.course-desc {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* ===== News ===== */
.news-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.news-item {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 1.25rem;
  padding: 1.25rem;
  background: var(--color-surface);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.news-date {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-primary);
  white-space: nowrap;
}

.news-title {
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.25rem;
}

.news-summary {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* ===== Awards ===== */
.awards-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.award-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--color-surface);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.award-year {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-accent);
  min-width: 50px;
}

.award-info strong {
  display: block;
  color: var(--color-primary);
}

.award-info span {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* ===== Contact ===== */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.25rem;
}

.contact-item {
  padding: 1.25rem;
  background: var(--color-surface);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.contact-item strong {
  display: block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-primary);
  margin-bottom: 0.35rem;
}

.contact-item a,
.contact-item span {
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

/* ===== Footer ===== */
.site-footer {
  background: var(--color-primary);
  color: rgba(255, 255, 255, 0.8);
  padding: 1.5rem 0;
  text-align: center;
  font-size: 0.875rem;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .nav-logo-text {
    display: none;
  }

  .nav-logo {
    flex: 0 0 auto;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  body[dir="rtl"] .hero-grid {
    text-align: center;
  }

  .hero-photo-wrap {
    order: -1;
    display: flex;
    justify-content: center;
  }

  .hero-actions {
    justify-content: center;
  }

  .social-links {
    justify-content: center;
  }

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

  .pub-item {
    grid-template-columns: 1fr;
  }

  .pub-year {
    text-align: start;
  }

  .news-item {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .student-table {
    font-size: 0.85rem;
  }

  .student-table th,
  .student-table td {
    padding: 0.6rem 0.5rem;
  }
}

@media (max-width: 480px) {
  .student-table thead {
    display: none;
  }

  .student-table tr {
    display: block;
    margin-bottom: 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 0.75rem;
  }

  .student-table td {
    display: block;
    border: none;
    padding: 0.25rem 0;
  }

  .student-table td::before {
    content: attr(data-label);
    font-weight: 600;
    color: var(--color-primary);
    display: block;
    font-size: 0.75rem;
    margin-bottom: 0.15rem;
  }
}