/* ==========================================================================
   Advin Netto-Inspired Portfolio Design System
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700&family=Syne:wght@600;700;800&display=swap');

:root {
  /* Dark Theme Palette (Default) */
  --bg-primary-hsl: 222, 24%, 9%;
  --bg-secondary-hsl: 220, 20%, 13%;
  --bg-tertiary-hsl: 218, 18%, 18%;
  --bg-glass-hsl: 222, 24%, 11%;
  
  --text-primary-hsl: 0, 0%, 98%;
  --text-secondary-hsl: 215, 20%, 75%;
  --text-muted-hsl: 215, 15%, 55%;
  
  --accent-primary: #00f0ff;
  --accent-purple: #9d4edd;
  --accent-lime: #70e000;
  
  --border-color: rgba(255, 255, 255, 0.1);
  --border-hover: rgba(0, 240, 255, 0.4);
  --card-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
  
  --font-heading: 'Syne', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;
  
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

body.light-theme {
  --bg-primary-hsl: 0, 0%, 97%;
  --bg-secondary-hsl: 0, 0%, 100%;
  --bg-tertiary-hsl: 210, 20%, 94%;
  --bg-glass-hsl: 0, 0%, 99%;
  
  --text-primary-hsl: 222, 30%, 10%;
  --text-secondary-hsl: 220, 15%, 35%;
  --text-muted-hsl: 220, 10%, 55%;
  
  --accent-primary: #0077ff;
  --accent-purple: #7b2cbf;
  --accent-lime: #38b000;
  
  --border-color: rgba(0, 0, 0, 0.08);
  --border-hover: rgba(0, 119, 255, 0.4);
  --card-shadow: 0 12px 32px rgba(0, 0, 0, 0.06);
}

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

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

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

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

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

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Background Ambient Lights */
.ambient-glows {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.15;
  animation: float-orb 18s ease-in-out infinite alternate;
}

.glow-1 {
  width: 450px;
  height: 450px;
  background: var(--accent-primary);
  top: -100px;
  left: -100px;
}

.glow-2 {
  width: 400px;
  height: 400px;
  background: var(--accent-purple);
  bottom: 10%;
  right: -100px;
  animation-delay: -6s;
}

.glow-3 {
  width: 350px;
  height: 350px;
  background: var(--accent-lime);
  top: 50%;
  left: 30%;
  animation-delay: -12s;
}

/* ==========================================================================
   Navigation Bar
   ========================================================================== */
.header-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 80px;
  z-index: 1000;
  transition: var(--transition-smooth);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.header-nav.scrolled {
  background-color: rgba(var(--bg-primary-hsl), 0.85);
  border-bottom: 1px solid var(--border-color);
  height: 70px;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
}

.nav-logo {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  letter-spacing: -0.02em;
}

.nav-logo i {
  color: var(--accent-primary);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: hsl(var(--text-secondary-hsl));
  position: relative;
  padding: 0.4rem 0;
}

.nav-link:hover, .nav-link.active {
  color: hsl(var(--text-primary-hsl));
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--accent-primary);
  transition: width var(--transition-fast);
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.theme-toggle-btn, .mobile-toggle {
  background: hsl(var(--bg-tertiary-hsl));
  border: 1px solid var(--border-color);
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: hsl(var(--text-primary-hsl));
  cursor: pointer;
  transition: var(--transition-fast);
}

.theme-toggle-btn:hover, .mobile-toggle:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.mobile-toggle {
  display: none;
}

/* ==========================================================================
   Hero Section (Advin Netto Style: hello / I'm Saurav)
   ========================================================================== */
.hero-section {
  padding-top: 140px;
  padding-bottom: 80px;
  position: relative;
  z-index: 1;
}

.hero-greeting {
  font-family: var(--font-heading);
  font-size: 5rem;
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.04em;
  color: hsl(var(--text-primary-hsl));
  margin-bottom: 0.2rem;
  text-transform: lowercase;
}

.hero-name {
  font-family: var(--font-heading);
  font-size: 5.5rem;
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.04em;
  color: hsl(var(--text-primary-hsl));
  margin-bottom: 1.8rem;
  background: linear-gradient(135deg, hsl(var(--text-primary-hsl)) 0%, hsl(var(--text-secondary-hsl)) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.4rem;
  font-weight: 400;
  line-height: 1.6;
  color: hsl(var(--text-secondary-hsl));
  max-width: 820px;
  margin-bottom: 2.2rem;
}

.hero-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-bottom: 3rem;
}

.pill-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.3rem;
  border-radius: 100px;
  background-color: hsl(var(--bg-secondary-hsl));
  border: 1px solid var(--border-color);
  font-size: 0.9rem;
  font-weight: 600;
  color: hsl(var(--text-primary-hsl));
  transition: var(--transition-fast);
}

.pill-link:hover {
  border-color: var(--accent-primary);
  transform: translateY(-2px);
  background-color: hsl(var(--bg-tertiary-hsl));
  box-shadow: 0 4px 14px rgba(0, 240, 255, 0.15);
}

.pill-link.primary {
  background: var(--accent-primary);
  color: #050b14;
  border: none;
}

.pill-link.primary:hover {
  background: #33f3ff;
  color: #000;
}

.hero-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  margin-top: 1rem;
  padding-top: 2rem;
  border-top: 1px dashed var(--border-color);
}

.hero-stat-card {
  background: hsl(var(--bg-secondary-hsl));
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 1.25rem 1.5rem;
}

.hero-stat-val {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-primary);
}

.hero-stat-lbl {
  font-size: 0.85rem;
  color: hsl(var(--text-muted-hsl));
  margin-top: 0.2rem;
}

/* Section Common Styling */
.section {
  padding: 90px 0;
  position: relative;
  z-index: 1;
}

.section-headline {
  font-family: var(--font-heading);
  font-size: 2.8rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 2.5rem;
  line-height: 1.15;
}

/* ==========================================================================
   Work / Projects Showcase (Editorial Tag & Cards)
   ========================================================================== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 2.2rem;
}

.project-card {
  background-color: hsl(var(--bg-secondary-hsl));
  border: 1px solid var(--border-color);
  border-radius: 20px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition-smooth);
}

.project-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--card-shadow);
}

.project-img-container {
  position: relative;
  width: 100%;
  height: 230px;
  overflow: hidden;
  background-color: hsl(var(--bg-tertiary-hsl));
  border-bottom: 1px solid var(--border-color);
}

.project-img-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.project-card:hover .project-img-container img {
  transform: scale(1.04);
}

.project-card-body {
  padding: 1.8rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  flex-grow: 1;
}

.project-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
}

.project-card-title {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 700;
  line-height: 1.25;
}

.project-badge-tag {
  font-family: monospace;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: 6px;
  background-color: hsl(var(--bg-tertiary-hsl));
  border: 1px solid var(--border-color);
  color: var(--accent-primary);
  white-space: nowrap;
}

.project-card-desc {
  font-size: 0.92rem;
  color: hsl(var(--text-secondary-hsl));
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.project-tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.4rem;
}

.tech-tag {
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  color: hsl(var(--text-muted-hsl));
}

.project-card-actions {
  padding: 1.25rem 1.8rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  background-color: rgba(0, 0, 0, 0.1);
}

.btn-read-case {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent-primary);
  background: transparent;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: var(--transition-fast);
}

.btn-read-case:hover {
  color: var(--accent-purple);
  transform: translateX(3px);
}

.btn-live-link {
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.4rem 0.85rem;
  border-radius: 6px;
  background: var(--accent-primary);
  color: #050b14;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: var(--transition-fast);
}

.btn-live-link:hover {
  background: #33f3ff;
  transform: translateY(-1px);
}

/* ==========================================================================
   Experience & Education ("Never complacent, never idle!")
   ========================================================================== */
.statement-subtext {
  font-size: 1.25rem;
  color: hsl(var(--text-secondary-hsl));
  max-width: 800px;
  margin-bottom: 3.5rem;
  line-height: 1.6;
}

.statement-subtext a {
  color: var(--accent-primary);
  text-decoration: underline;
}

.experience-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
}

.timeline-column h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: hsl(var(--text-muted-hsl));
  margin-bottom: 1.8rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.6rem;
}

.timeline-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  list-style: none;
}

.timeline-item {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.timeline-years {
  font-family: monospace;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent-primary);
}

.timeline-role {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  color: hsl(var(--text-primary-hsl));
}

.timeline-company {
  font-size: 1rem;
  font-weight: 600;
  color: hsl(var(--text-secondary-hsl));
}

.timeline-desc {
  font-size: 0.9rem;
  color: hsl(var(--text-muted-hsl));
  margin-top: 0.3rem;
  line-height: 1.55;
}

/* ==========================================================================
   Core Skills Grid
   ========================================================================== */
.skills-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 2rem;
}

.filter-btn {
  background: hsl(var(--bg-secondary-hsl));
  border: 1px solid var(--border-color);
  color: hsl(var(--text-secondary-hsl));
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.5rem 1.1rem;
  border-radius: 100px;
  cursor: pointer;
  transition: var(--transition-fast);
}

.filter-btn:hover, .filter-btn.active {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: #050b14;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 1.25rem;
}

.skill-card {
  background: hsl(var(--bg-secondary-hsl));
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: var(--transition-smooth);
}

.skill-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.skill-icon-wrap {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: rgba(0, 240, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-primary);
}

.skill-info h4 {
  font-size: 0.95rem;
  font-weight: 600;
}

.skill-card.hidden {
  display: none;
}

/* ==========================================================================
   Work Together CTA Banner & Contact
   ========================================================================== */
.cta-banner-box {
  background: linear-gradient(135deg, hsl(var(--bg-secondary-hsl)) 0%, hsl(var(--bg-tertiary-hsl)) 100%);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 4rem 3rem;
  margin-bottom: 4rem;
}

.cta-banner-title {
  font-family: var(--font-heading);
  font-size: 4rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.cta-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--accent-primary);
  text-decoration: underline;
  transition: var(--transition-fast);
}

.cta-link-btn:hover {
  color: var(--accent-purple);
  transform: translateX(5px);
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 3.5rem;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-info-item h5 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: hsl(var(--text-muted-hsl));
  margin-bottom: 0.2rem;
}

.contact-info-item p {
  font-size: 1.1rem;
  font-weight: 600;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  background: hsl(var(--bg-secondary-hsl));
  border: 1px solid var(--border-color);
  padding: 2.5rem;
  border-radius: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: hsl(var(--text-secondary-hsl));
}

.form-control {
  background: hsl(var(--bg-tertiary-hsl));
  border: 1px solid var(--border-color);
  padding: 0.85rem 1.1rem;
  border-radius: 8px;
  color: hsl(var(--text-primary-hsl));
  font-family: inherit;
  font-size: 0.95rem;
  transition: var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.15);
}

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

.btn-submit {
  background: var(--accent-primary);
  color: #050b14;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  padding: 0.9rem 1.8rem;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: var(--transition-fast);
}

.btn-submit:hover {
  background: #33f3ff;
  transform: translateY(-2px);
}

.form-status {
  padding: 0.85rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  display: none;
}

.form-status.success {
  display: block;
  background: rgba(112, 224, 0, 0.15);
  border: 1px solid rgba(112, 224, 0, 0.4);
  color: #70e000;
}

.form-status.error {
  display: block;
  background: rgba(255, 77, 77, 0.15);
  border: 1px solid rgba(255, 77, 77, 0.4);
  color: #ff4d4d;
}

/* ==========================================================================
   Project Details Modal Drawer
   ========================================================================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(5, 11, 20, 0.88);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 2000;
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition-smooth);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-wrapper {
  background-color: hsl(var(--bg-secondary-hsl));
  border: 1px solid var(--border-color);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.7);
  width: 92%;
  max-width: 900px;
  max-height: 88vh;
  border-radius: 24px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transform: scale(0.92) translateY(20px);
  transition: var(--transition-smooth);
  position: relative;
}

.modal-overlay.active .modal-wrapper {
  transform: scale(1) translateY(0);
}

.modal-close-btn {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(15, 21, 36, 0.85);
  border: 1px solid var(--border-color);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  transition: var(--transition-fast);
}

.modal-close-btn:hover {
  background: var(--accent-purple);
}

.modal-body {
  overflow-y: auto;
  flex-grow: 1;
}

.modal-hero {
  position: relative;
  height: 320px;
  width: 100%;
}

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

.modal-hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(0deg, hsl(var(--bg-secondary-hsl)) 0%, rgba(5, 11, 20, 0.3) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 2.5rem;
}

.modal-hero-overlay h2 {
  font-family: var(--font-heading);
  font-size: 2.4rem;
  line-height: 1.2;
}

.modal-hero-overlay p {
  color: var(--accent-primary);
  font-size: 1.05rem;
  font-weight: 500;
}

.modal-content-details {
  padding: 2.5rem;
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 2.5rem;
}

.modal-main {
  display: flex;
  flex-direction: column;
  gap: 1.8rem;
}

.modal-main h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  margin-bottom: 0.6rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--accent-primary);
}

.modal-sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.modal-meta-box {
  background-color: hsl(var(--bg-tertiary-hsl));
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 1.4rem;
}

.modal-meta-box h4 {
  font-family: var(--font-heading);
  font-size: 1rem;
  margin-bottom: 0.8rem;
}

.modal-highlights-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.modal-highlights-list li {
  position: relative;
  padding-left: 1.4rem;
  font-size: 0.9rem;
  color: hsl(var(--text-secondary-hsl));
}

.modal-highlights-list li::before {
  content: '✦';
  position: absolute;
  left: 0;
  color: var(--accent-purple);
}

.code-location-box {
  background-color: rgba(0, 240, 255, 0.05);
  border: 1px dashed rgba(0, 240, 255, 0.25);
  border-radius: 12px;
  padding: 1.1rem;
  font-size: 0.85rem;
}

.code-location-box h5 {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  margin-bottom: 0.4rem;
  color: var(--accent-primary);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.code-location-box a {
  color: var(--accent-primary);
  text-decoration: none;
  font-weight: 600;
}

.code-location-box a:hover {
  text-decoration: underline;
}

/* Footer */
.main-footer {
  border-top: 1px solid var(--border-color);
  padding: 2.5rem 0;
  font-size: 0.9rem;
  color: hsl(var(--text-muted-hsl));
  position: relative;
  z-index: 1;
}

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

/* Animations & Responsiveness */
@keyframes float-orb {
  0% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-40px) scale(1.08); }
  100% { transform: translateY(0) scale(1); }
}

@media (max-width: 992px) {
  .hero-greeting { font-size: 3.8rem; }
  .hero-name { font-size: 4.2rem; }
  .experience-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .contact-grid { grid-template-columns: 1fr; }
  .cta-banner-title { font-size: 3rem; }
}

@media (max-width: 768px) {
  .hero-greeting { font-size: 3rem; }
  .hero-name { font-size: 3.2rem; }
  .hero-subtitle { font-size: 1.15rem; }
  .section-headline { font-size: 2.2rem; }
  .mobile-toggle { display: flex; }
  
  .nav-menu {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background-color: hsl(var(--bg-primary-hsl));
    flex-direction: column;
    padding: 3rem 2rem;
    transition: var(--transition-smooth);
    border-top: 1px solid var(--border-color);
  }
  
  .nav-menu.active { left: 0; }
  .modal-content-details { grid-template-columns: 1fr; }
}