/* 
  Dr. Mithun Mohan - Official Academic Portfolio Stylesheet
  Theme: Dark Slate & Cyan/Teal Engineering Accent with Glassmorphism
*/

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

:root {
  /* Color Palette - Dark Slate (Default) */
  --bg-primary: #0b0f19;
  --bg-secondary: #111827;
  --bg-card: rgba(19, 27, 46, 0.7);
  --bg-card-hover: rgba(28, 39, 64, 0.85);
  --bg-glass: rgba(11, 15, 25, 0.8);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-color-hover: rgba(13, 148, 136, 0.5);

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --accent-teal: #0d9488;
  --accent-cyan: #06b6d4;
  --accent-cyan-glow: rgba(6, 182, 212, 0.25);
  --accent-gold: #f59e0b;
  --accent-purple: #a855f7;
  --accent-blue: #3b82f6;

  --gradient-accent: linear-gradient(135deg, #0d9488 0%, #06b6d4 100%);
  --gradient-gold: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  --gradient-card: linear-gradient(180deg, rgba(255, 255, 255, 0.03) 0%, rgba(255, 255, 255, 0) 100%);
  --gradient-hero-bg: radial-gradient(circle at 80% 20%, rgba(6, 182, 212, 0.12) 0%, rgba(13, 148, 136, 0.05) 40%, transparent 70%);

  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --font-heading: 'Outfit', system-ui, sans-serif;
  --font-code: 'JetBrains Mono', monospace;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 35px rgba(6, 182, 212, 0.2);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #f1f5f9;
  --bg-card: rgba(255, 255, 255, 0.9);
  --bg-card-hover: #ffffff;
  --bg-glass: rgba(248, 250, 252, 0.85);
  --border-color: rgba(0, 0, 0, 0.08);
  --border-color-hover: rgba(13, 148, 136, 0.4);

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;

  --accent-cyan-glow: rgba(6, 182, 212, 0.15);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.08);
  --shadow-glow: 0 0 35px rgba(6, 182, 212, 0.15);
}

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

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

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Container */
.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.25;
}

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

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

/* Header & Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  transition: all var(--transition-normal);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--text-primary);
}

.logo-badge {
  background: var(--gradient-accent);
  color: #ffffff;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
  list-style: none;
}

.nav-link {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.88rem;
  transition: color var(--transition-fast);
  position: relative;
  padding: 6px 0;
}

.nav-link:hover, .nav-link.active {
  color: var(--accent-cyan);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--gradient-accent);
  border-radius: 2px;
}

.theme-toggle-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.theme-toggle-btn:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  transform: scale(1.05);
}

/* Hero Section */
.hero-section {
  position: relative;
  padding: 150px 0 90px;
  background: var(--gradient-hero-bg);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 60px;
  align-items: center;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(13, 148, 136, 0.12);
  border: 1px solid rgba(13, 148, 136, 0.3);
  color: var(--accent-cyan);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero-title {
  font-size: 3.2rem;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 16px;
}

.gradient-text {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 24px;
}

.hero-bio {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 36px;
  max-width: 620px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
}

.btn-primary {
  background: var(--gradient-accent);
  color: #ffffff;
  box-shadow: 0 4px 20px rgba(13, 148, 136, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(6, 182, 212, 0.5);
  color: #ffffff;
}

.btn-outline {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}

.btn-outline:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  transform: translateY(-2px);
}

/* Distinct Brand Button Accents for Hero Actions */
.btn-scholar {
  background: linear-gradient(135deg, #4285f4 0%, #0d9488 100%);
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(66, 133, 244, 0.3);
}

.btn-scholar:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(66, 133, 244, 0.45);
  color: #ffffff;
}

.btn-researchgate {
  background: linear-gradient(135deg, #00cc99 0%, #0d9488 100%);
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(0, 204, 153, 0.3);
}

.btn-researchgate:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 204, 153, 0.45);
  color: #ffffff;
}

.btn-scopus {
  background: linear-gradient(135deg, #ff6600 0%, #f59e0b 100%);
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(255, 102, 0, 0.3);
}

.btn-scopus:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(255, 102, 0, 0.45);
  color: #ffffff;
}

/* Quick Stats Bar */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding-top: 32px;
  border-top: 1px solid var(--border-color);
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-value {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent-cyan);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Hero Portrait Container */
.hero-image-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.portrait-frame {
  position: relative;
  width: 360px;
  height: 420px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-glow);
}

.portrait-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.portrait-frame:hover .portrait-img {
  transform: scale(1.03);
}

/* Section Header */
.section {
  padding: 90px 0;
  border-bottom: 1px solid var(--border-color);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 50px;
}

.section-subtitle {
  color: var(--accent-cyan);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 12px;
  display: block;
}

.section-title {
  font-size: 2.4rem;
  margin-bottom: 16px;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

/* Glass Card Component */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 15px;
  transition: all var(--transition-normal);
}

.glass-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-color-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

/* Publication Count Summary Bar above Search Bar */
.pub-counts-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 30px;
}

.pub-count-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.pub-count-card:hover {
  border-color: var(--accent-cyan);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.pub-count-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: rgba(13, 148, 136, 0.15);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.pub-count-num {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent-cyan);
  line-height: 1;
}

.pub-count-label {
  font-size: 0.88rem;
  color: var(--text-muted);
  font-weight: 600;
  margin-top: 4px;
}

/* Timeline (Qualifications & Career) */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.timeline {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.timeline-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.35rem;
  margin-bottom: 24px;
  color: var(--text-primary);
}

.timeline-item {
  position: relative;
  padding-left: 28px;
  border-left: 2px solid var(--border-color);
  transition: border-color var(--transition-fast);
}

.timeline-item:hover {
  border-left-color: var(--accent-teal);
}

.timeline-dot {
  position: absolute;
  left: -7px;
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: var(--radius-full);
  background: var(--accent-cyan);
  box-shadow: 0 0 10px var(--accent-cyan);
}

.timeline-year {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent-gold);
  margin-bottom: 4px;
}

.timeline-role {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.timeline-org {
  font-size: 0.95rem;
  color: var(--accent-cyan);
  margin-bottom: 8px;
}

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

/* Research Cards */
.research-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
}

.research-card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.research-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: rgba(13, 148, 136, 0.15);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin-bottom: 20px;
}

.research-title {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.research-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 20px;
  flex-grow: 1;
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 500;
}

/* Publications Hub */
.pub-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 36px;
}

.search-box {
  position: relative;
  flex-grow: 1;
  max-width: 450px;
}

.search-input {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  padding: 12px 20px 12px 46px;
  color: var(--text-primary);
  font-size: 0.95rem;
  outline: none;
  transition: all var(--transition-fast);
}

.search-input:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 15px var(--accent-cyan-glow);
}

.search-icon-svg {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
}

.filter-pills {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.pill-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 10px 22px;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.pill-btn:hover, .pill-btn.active {
  background: var(--gradient-accent);
  color: #ffffff;
  border-color: var(--accent-teal);
  box-shadow: 0 4px 15px rgba(13, 148, 136, 0.3);
}

.pub-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.pub-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.pub-header {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.pub-type-badge {
  padding: 3px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

.pub-type-journal {
  background: rgba(13, 148, 136, 0.2);
  color: var(--accent-cyan);
  border: 1px solid rgba(13, 148, 136, 0.4);
}

.pub-type-conf {
  background: rgba(245, 158, 11, 0.2);
  color: var(--accent-gold);
  border: 1px solid rgba(245, 158, 11, 0.4);
}

.pub-type-book {
  background: rgba(168, 85, 247, 0.2);
  color: var(--accent-purple);
  border: 1px solid rgba(168, 85, 247, 0.4);
}

.pub-year {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 600;
}

.pub-citations-badge {
  font-size: 0.78rem;
  color: var(--accent-gold);
  background: rgba(245, 158, 11, 0.1);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(245, 158, 11, 0.3);
  font-weight: 600;
}

.pub-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.4;
}

.pub-authors {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.author-highlight {
  color: var(--accent-cyan);
  font-weight: 700;
}

.pub-venue {
  font-size: 0.9rem;
  color: var(--accent-gold);
  font-style: italic;
}

.pub-actions {
  display: flex;
  gap: 12px;
  margin-top: 8px;
}

.pub-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.pub-btn:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

/* Project Guidance Grid & Badges */
.guidance-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.guidance-card {
  border-left: 3px solid var(--accent-cyan);
}

.status-badge {
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  white-space: nowrap;
}

.badge-status-submitted {
  background: rgba(6, 182, 212, 0.15);
  color: var(--accent-cyan);
  border: 1px solid rgba(6, 182, 212, 0.4);
}

.badge-status-ongoing {
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-gold);
  border: 1px solid rgba(245, 158, 11, 0.4);
}

.badge-status-awarded {
  background: rgba(13, 148, 136, 0.15);
  color: var(--accent-teal);
  border: 1px solid rgba(13, 148, 136, 0.4);
}

.guidance-stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.guidance-stat-card {
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-color);
  padding: 20px;
  border-radius: var(--radius-sm);
  text-align: center;
}

.guidance-stat-num {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--accent-cyan);
  line-height: 1;
  margin-bottom: 8px;
}

.guidance-stat-lbl {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 600;
}

/* Reviewer Cards Styling */
.reviewer-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.reviewer-item:hover {
  border-color: var(--accent-cyan);
  background: rgba(13, 148, 136, 0.08);
  transform: translateY(-2px);
}

.reviewer-icon {
  font-size: 1.2rem;
  margin-bottom: 4px;
}

.reviewer-name {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-primary);
  line-height: 1.3;
}

.reviewer-pub {
  font-size: 0.8rem;
  color: var(--accent-gold);
  font-weight: 500;
}

/* Projects Banner */
.project-banner-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  overflow: hidden;
}

.project-img-wrapper {
  height: 100%;
  min-height: 280px;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.project-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Teaching */
.teaching-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.course-card {
  border-left: 3px solid var(--accent-teal);
}

/* Contact Section */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 40px;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-top: 24px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.contact-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: rgba(13, 148, 136, 0.15);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

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

.form-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
}

.form-input, .form-textarea {
  width: 100%;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

.form-input:focus, .form-textarea:focus {
  border-color: var(--accent-cyan);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

/* Footer */
.footer {
  padding: 40px 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  font-size: 0.9rem;
  color: var(--text-muted);
}

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

/* Responsiveness */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-bio {
    margin: 0 auto 36px;
  }

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

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

  .about-grid, .project-banner-card, .contact-grid {
    grid-template-columns: 1fr;
  }

  .portrait-frame {
    width: 280px;
    height: 340px;
  }

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

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .hero-title {
    font-size: 2.3rem;
  }

  .section-title {
    font-size: 1.9rem;
  }
}