/* ============================================
   PEDRO MESQUITA — Portfolio CSS
   Dark futuristic theme
   ============================================ */

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

/* --- CSS Variables --- */
:root {
  --bg-primary: #06060b;
  --bg-secondary: #0c0c14;
  --bg-card: #0f0f1a;
  --bg-card-hover: #141425;
  --bg-glass: rgba(12, 12, 20, 0.7);
  --text-primary: #e8e8f0;
  --text-secondary: #8888a0;
  --text-muted: #55556a;
  --accent: #00E5A0;
  --accent-dim: rgba(0, 229, 160, 0.12);
  --accent-glow: rgba(0, 229, 160, 0.35);
  --accent-secondary: #FF4D4D;
  --gradient-1: linear-gradient(135deg, #FF4D4D, #00E5A0);
  --gradient-2: linear-gradient(135deg, #FF6B6B, #00E5A0);
  --gradient-hero: radial-gradient(ellipse at 20% 50%, rgba(255, 77, 77, 0.06) 0%, transparent 50%),
                   radial-gradient(ellipse at 80% 20%, rgba(0, 229, 160, 0.06) 0%, transparent 50%);
  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-accent: rgba(0, 229, 160, 0.2);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-card: 0 4px 30px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 30px rgba(0, 229, 160, 0.15);
  --shadow-glow-strong: 0 0 60px rgba(0, 229, 160, 0.25);
  --font-display: 'Syne', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  cursor: default;
}

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

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

ul, ol {
  list-style: none;
}

/* --- Custom Cursor --- */
.cursor-dot {
  position: fixed;
  top: 0;
  left: 0;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  pointer-events: none;
  z-index: 99999;
  transform: translate(-50%, -50%);
  transition: transform 0.1s ease, opacity 0.3s ease;
  mix-blend-mode: difference;
}

.cursor-ring {
  position: fixed;
  top: 0;
  left: 0;
  width: 40px;
  height: 40px;
  border: 1.5px solid var(--accent);
  border-radius: 50%;
  pointer-events: none;
  z-index: 99998;
  transform: translate(-50%, -50%);
  transition: width 0.3s ease, height 0.3s ease, border-color 0.3s ease;
  opacity: 0.5;
}

.cursor-ring.hover {
  width: 60px;
  height: 60px;
  border-color: var(--accent-secondary);
  opacity: 0.8;
}

@media (pointer: coarse) {
  .cursor-dot, .cursor-ring { display: none; }
}

/* --- Canvas Background --- */
#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.4;
}

/* --- Layout --- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  position: relative;
  z-index: 1;
  padding: 100px 0;
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: background var(--transition-smooth), 
              padding var(--transition-smooth),
              backdrop-filter var(--transition-smooth);
}

.nav.scrolled {
  background: var(--bg-glass);
  backdrop-filter: blur(20px) saturate(1.5);
  -webkit-backdrop-filter: blur(20px) saturate(1.5);
  padding: 10px 0;
  border-bottom: 1px solid var(--border-subtle);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text-primary);
}

.nav-logo img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  padding: 8px 18px;
  border-radius: 100px;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  position: relative;
}

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

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

.nav-cta {
  font-size: 0.85rem;
  font-weight: 600;
  padding: 8px 20px;
  border-radius: 100px;
  background: var(--gradient-1);
  color: var(--bg-primary);
  margin-left: 8px;
  transition: all var(--transition-fast);
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

/* --- Hero Section --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: 80px;
  background: var(--gradient-hero);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 100px;
  background: rgba(0, 229, 160, 0.08);
  border: 1px solid rgba(0, 229, 160, 0.2);
  font-size: 0.8rem;
  font-weight: 500;
  color: #00E5A0;
  margin-bottom: 28px;
  animation: float 3s ease-in-out infinite;
}

.hero-badge .pulse-dot {
  width: 8px;
  height: 8px;
  background: #00E5A0;
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 5vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.hero-title .gradient-text {
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle-wrapper {
  height: 40px;
  display: flex;
  align-items: center;
  margin-bottom: 24px;
}

.hero-subtitle {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 4px;
}

.hero-subtitle .typing-cursor {
  display: inline-block;
  width: 2px;
  height: 1.2em;
  background: var(--accent);
  animation: blink 1s step-end infinite;
  margin-left: 2px;
  vertical-align: middle;
}

@keyframes blink {
  50% { opacity: 0; }
}

.hero-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 480px;
  margin-bottom: 36px;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* --- Buttons --- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 100px;
  background: var(--gradient-1);
  color: var(--bg-primary);
  font-weight: 600;
  font-size: 0.95rem;
  font-family: var(--font-body);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.2), transparent);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-strong);
}

.btn-primary:hover::before {
  opacity: 1;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 100px;
  background: transparent;
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.95rem;
  font-family: var(--font-body);
  border: 1.5px solid var(--border-accent);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-secondary:hover {
  background: var(--accent-dim);
  border-color: var(--accent);
  transform: translateY(-2px);
}

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

.hero-image-container {
  position: relative;
  width: 380px;
  height: 380px;
}

.hero-image-glow {
  position: absolute;
  inset: -20px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  filter: blur(40px);
  animation: glowPulse 4s ease-in-out infinite;
}

@keyframes glowPulse {
  0%, 100% { opacity: 0.5; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.05); }
}

.hero-image-ring {
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  background: var(--gradient-1);
  animation: ringRotate 8s linear infinite;
  padding: 3px;
}

.hero-image-ring::before {
  content: '';
  position: absolute;
  inset: 3px;
  border-radius: 50%;
  background: var(--bg-primary);
}

@keyframes ringRotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.hero-image {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  position: relative;
  z-index: 2;
  border: 4px solid var(--bg-primary);
}

.hero-orbit-dot {
  position: absolute;
  width: 12px;
  height: 12px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 20px var(--accent-glow);
  z-index: 3;
  animation: orbit 8s linear infinite;
}

.hero-orbit-dot:nth-child(2) {
  animation-delay: -4s;
  background: var(--accent-secondary);
  box-shadow: 0 0 20px rgba(255, 77, 77, 0.4);
}

@keyframes orbit {
  from {
    transform: rotate(0deg) translateX(195px) rotate(0deg);
  }
  to {
    transform: rotate(360deg) translateX(195px) rotate(-360deg);
  }
}

/* --- Section Headers --- */
.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 3px;
  margin-bottom: 12px;
  display: block;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* --- Stats --- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 80px;
}

.stat-card {
  text-align: center;
  padding: 32px 20px;
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 2px;
  background: var(--gradient-1);
  opacity: 0;
  transition: opacity var(--transition-smooth);
}

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

.stat-card:hover::before {
  opacity: 1;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* --- About Bio --- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.about-text h3 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.8;
}

.about-text .highlight {
  color: var(--accent);
  font-weight: 500;
}

/* --- Experience Timeline --- */
.timeline {
  position: relative;
  padding-left: 32px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), var(--accent-secondary), transparent);
}

.timeline-item {
  position: relative;
  margin-bottom: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border-subtle);
}

.timeline-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -37px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent-glow);
}

.timeline-role {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 4px;
}

.timeline-company {
  color: var(--accent);
  font-weight: 500;
  font-size: 0.95rem;
  margin-bottom: 4px;
}

.timeline-date {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-bottom: 8px;
}

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

/* --- Skills --- */
.skills-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.skill-group {
  padding: 28px;
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-smooth);
}

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

.skill-group-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.skill-group-title .icon {
  font-size: 1.2rem;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.skill-tag {
  padding: 6px 14px;
  border-radius: 100px;
  background: var(--accent-dim);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 500;
  font-family: var(--font-mono);
  transition: all var(--transition-fast);
  border: 1px solid transparent;
}

.skill-tag:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}

/* --- Education & Languages --- */
.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.info-card {
  padding: 28px;
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-smooth);
}

.info-card:hover {
  border-color: var(--border-accent);
}

.info-card-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  margin-bottom: 6px;
}

.info-card-sub {
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 4px;
}

.info-card-date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* --- Language Bars --- */
.lang-item {
  margin-bottom: 20px;
}

.lang-item:last-child {
  margin-bottom: 0;
}

.lang-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
}

.lang-name {
  font-weight: 600;
  font-size: 0.95rem;
}

.lang-level {
  color: var(--text-muted);
  font-size: 0.85rem;
  font-family: var(--font-mono);
}

.lang-bar {
  height: 6px;
  background: var(--bg-secondary);
  border-radius: 100px;
  overflow: hidden;
}

.lang-bar-fill {
  height: 100%;
  border-radius: 100px;
  background: var(--gradient-1);
  width: 0;
  transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Projects Page --- */
.projects-hero {
  padding: 140px 0 60px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.filter-bar {
  display: flex;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 60px;
  position: relative;
  z-index: 1;
}

.filter-btn {
  padding: 8px 20px;
  border-radius: 100px;
  border: 1px solid var(--border-subtle);
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  border-color: var(--border-accent);
  color: var(--text-primary);
}

.filter-btn.active {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent);
}

/* --- Project Cards --- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 28px;
  position: relative;
  z-index: 1;
}

.project-card {
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
  transition: all var(--transition-smooth);
  position: relative;
  cursor: pointer;
}

.project-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  padding: 1px;
  background: var(--gradient-1);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--transition-smooth);
  pointer-events: none;
}

.project-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-glow);
  border-color: transparent;
}

.project-card:hover::before {
  opacity: 1;
}

.project-card.featured {
  grid-column: span 1;
}

.project-card-image {
  position: relative;
  height: 200px;
  overflow: hidden;
}

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

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

.project-card-featured-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 4px 12px;
  border-radius: 100px;
  background: var(--gradient-1);
  color: var(--bg-primary);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  z-index: 2;
}

.project-card-body {
  padding: 24px;
}

.project-card-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.project-card-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.project-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}

.project-tag {
  padding: 4px 10px;
  border-radius: 100px;
  background: var(--accent-dim);
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 500;
  font-family: var(--font-mono);
}

.project-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  transition: gap var(--transition-fast);
}

.project-card:hover .project-card-link {
  gap: 10px;
}

/* --- Footer --- */
.footer {
  position: relative;
  z-index: 1;
  padding: 60px 0 30px;
  border-top: 1px solid var(--border-subtle);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 60px;
  margin-bottom: 40px;
}

.footer-brand h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  max-width: 400px;
  line-height: 1.7;
}

.footer-social {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: flex-start;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 1.2rem;
  transition: all var(--transition-fast);
}

.social-link:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 20px;
  border-top: 1px solid var(--border-subtle);
}

.footer-bottom p {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.footer-quote {
  font-style: italic;
  color: var(--text-muted);
  font-size: 0.8rem;
}

/* --- Scroll Reveal --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-scale.visible {
  opacity: 1;
  transform: scale(1);
}

/* Staggered children */
.stagger-children > * {
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.stagger-children.visible > *:nth-child(1) { transition-delay: 0s; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(2) { transition-delay: 0.1s; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(3) { transition-delay: 0.2s; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(4) { transition-delay: 0.3s; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(5) { transition-delay: 0.4s; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(6) { transition-delay: 0.5s; opacity: 1; transform: translateY(0); }

/* --- Divider --- */
.section-divider {
  width: 60px;
  height: 3px;
  background: var(--gradient-1);
  border-radius: 100px;
  margin: 0 auto 60px;
}

/* --- Mobile Responsive --- */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 40px;
  }

  .hero-content {
    order: 2;
  }

  .hero-image-wrapper {
    order: 1;
  }

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

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

  .hero-badge {
    margin: 0 auto 28px;
  }

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

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .hero-image-container {
    width: 280px;
    height: 280px;
  }

  .hero-orbit-dot {
    animation-name: orbit-small;
  }

  @keyframes orbit-small {
    from { transform: rotate(0deg) translateX(145px) rotate(0deg); }
    to { transform: rotate(360deg) translateX(145px) rotate(-360deg); }
  }
}

@media (max-width: 768px) {
  .section {
    padding: 60px 0;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--bg-secondary);
    flex-direction: column;
    align-items: flex-start;
    padding: 80px 30px 30px;
    gap: 4px;
    transition: right var(--transition-smooth);
    border-left: 1px solid var(--border-subtle);
  }

  .nav-links.open {
    right: 0;
  }

  .nav-toggle {
    display: flex;
    z-index: 1001;
  }

  .nav-cta {
    margin-left: 0;
    margin-top: 16px;
  }

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

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .stat-card {
    padding: 20px 12px;
  }

  .stat-number {
    font-size: 2rem;
  }

  .hero-image-container {
    width: 220px;
    height: 220px;
  }

  .hero-orbit-dot {
    animation-name: orbit-mobile;
  }

  @keyframes orbit-mobile {
    from { transform: rotate(0deg) translateX(115px) rotate(0deg); }
    to { transform: rotate(360deg) translateX(115px) rotate(-360deg); }
  }

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 15px;
  }

  .container {
    padding: 0 16px;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .btn-primary, .btn-secondary {
    justify-content: center;
  }

  .filter-bar {
    gap: 6px;
  }

  .filter-btn {
    padding: 6px 14px;
    font-size: 0.8rem;
  }

  .skills-container {
    grid-template-columns: 1fr;
  }

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

/* --- Page Transitions --- */
.page-transition {
  opacity: 0;
  animation: pageIn 0.6s ease forwards;
}

@keyframes pageIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --- Selection --- */
::selection {
  background: var(--accent-dim);
  color: var(--accent);
}

/* --- Scrollbar --- */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--bg-card);
  border-radius: 100px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* --- Mobile nav overlay --- */
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 998;
  backdrop-filter: blur(4px);
}

.nav-overlay.open {
  display: block;
}

/* --- Project detail (case) pages --- */
.project-detail-page {
  position: relative;
  z-index: 1;
  padding: 100px 0 80px;
  min-height: 60vh;
}

.project-detail-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 28px;
  transition: color var(--transition-fast);
}

.project-detail-back:hover {
  color: var(--accent);
}

.project-detail-header {
  margin-bottom: 40px;
}

.project-detail-hero {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  margin-bottom: 28px;
  max-height: 380px;
}

.project-detail-hero img {
  width: 100%;
  height: 100%;
  max-height: 380px;
  object-fit: cover;
  display: block;
}

.project-detail-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 16px;
}

.project-detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.project-detail-content {
  max-width: 720px;
  margin: 0 auto 48px;
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.85;
}

.project-detail-content h2 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 2.2rem 0 0.85rem;
  letter-spacing: -0.02em;
}

.project-detail-content h2:first-child {
  margin-top: 0;
}

.project-detail-content h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 1.5rem 0 0.5rem;
}

.project-detail-content p {
  margin-bottom: 1rem;
}

.project-detail-content ul,
.project-detail-content ol {
  margin: 0 0 1rem 1.15rem;
  padding: 0;
}

.project-detail-content li {
  margin-bottom: 0.45rem;
}

.project-detail-content ul {
  list-style: disc;
}

.project-detail-content ol {
  list-style: decimal;
}

.project-detail-content strong {
  color: var(--text-primary);
  font-weight: 600;
}

.project-detail-content code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: var(--bg-card);
  padding: 0.15em 0.45em;
  border-radius: 6px;
  border: 1px solid var(--border-subtle);
  color: var(--accent);
}

.project-detail-content a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.project-detail-content a:hover {
  color: var(--text-primary);
}

.project-detail-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0 1.5rem;
  font-size: 0.92rem;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.project-detail-content th,
.project-detail-content td {
  padding: 0.65rem 0.85rem;
  text-align: left;
  border-bottom: 1px solid var(--border-subtle);
}

.project-detail-content th {
  background: var(--bg-card);
  color: var(--text-primary);
  font-weight: 600;
}

.project-detail-content tr:last-child td {
  border-bottom: none;
}

.project-detail-content pre {
  margin: 1rem 0;
  padding: 1rem 1.15rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow-x: auto;
  font-size: 0.82rem;
  line-height: 1.5;
}

.project-detail-content pre code {
  background: none;
  border: none;
  padding: 0;
  color: var(--text-secondary);
}

.project-detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  padding-bottom: 40px;
}