/* ============================================
   DESIGN SYSTEM - CSS Custom Properties
   ============================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600;700&family=Outfit:wght@300;400;500;600;700;800;900&display=swap');

:root {
  /* Light Theme */
  --bg-primary: #ffffff;
  --bg-secondary: #f5f7fa;
  --bg-tertiary: #eef1f6;
  --bg-card: #ffffff;
  --bg-card-hover: #f8fafc;
  --bg-navbar: rgba(255, 255, 255, 0.85);

  --text-primary: #1a1a2e;
  --text-secondary: #4a4a6a;
  --text-tertiary: #7a7a9a;
  --text-muted: #9ca3af;

  --accent-blue: #2563eb;
  --accent-blue-light: #3b82f6;
  --accent-blue-dark: #1d4ed8;
  --accent-orange: #f97316;
  --accent-orange-light: #fb923c;
  --accent-orange-dark: #ea580c;

  --border-color: rgba(0, 0, 0, 0.08);
  --border-card: rgba(0, 0, 0, 0.06);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
  --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.06);

  --gradient-primary: linear-gradient(135deg, #2563eb, #3b82f6);
  --gradient-accent: linear-gradient(135deg, #f97316, #fb923c);
  --gradient-hero: linear-gradient(135deg, rgba(37, 99, 235, 0.05), rgba(249, 115, 22, 0.05));
  --gradient-card: linear-gradient(145deg, rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.6));

  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.3);

  --skill-badge-bg: #f0f4ff;
  --skill-badge-text: #2563eb;
  --skill-badge-border: rgba(37, 99, 235, 0.15);

  --open-to-work-bg: rgba(16, 185, 129, 0.1);
  --open-to-work-border: rgba(16, 185, 129, 0.3);
  --open-to-work-text: #059669;
  --open-to-work-dot: #10b981;

  --scrollbar-track: #f1f5f9;
  --scrollbar-thumb: #cbd5e1;
}

[data-theme="dark"] {
  --bg-primary: #0a0a0f;
  --bg-secondary: #111118;
  --bg-tertiary: #1a1a24;
  --bg-card: #15151f;
  --bg-card-hover: #1e1e2a;
  --bg-navbar: rgba(10, 10, 15, 0.88);

  --text-primary: #f1f5f9;
  --text-secondary: #c8cdd5;
  --text-tertiary: #8a90a0;
  --text-muted: #5a6070;

  --accent-blue: #3b82f6;
  --accent-blue-light: #60a5fa;
  --accent-blue-dark: #2563eb;
  --accent-orange: #f97316;
  --accent-orange-light: #fb923c;
  --accent-orange-dark: #ea580c;

  --border-color: rgba(255, 255, 255, 0.06);
  --border-card: rgba(255, 255, 255, 0.08);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.6);
  --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.3);

  --gradient-primary: linear-gradient(135deg, #3b82f6, #60a5fa);
  --gradient-accent: linear-gradient(135deg, #f97316, #fb923c);
  --gradient-hero: linear-gradient(135deg, rgba(59, 130, 246, 0.06), rgba(249, 115, 22, 0.06));
  --gradient-card: linear-gradient(145deg, rgba(21, 21, 31, 0.9), rgba(21, 21, 31, 0.6));

  --glass-bg: rgba(15, 15, 25, 0.75);
  --glass-border: rgba(255, 255, 255, 0.08);

  --skill-badge-bg: rgba(59, 130, 246, 0.12);
  --skill-badge-text: #60a5fa;
  --skill-badge-border: rgba(59, 130, 246, 0.2);

  --open-to-work-bg: rgba(16, 185, 129, 0.12);
  --open-to-work-border: rgba(16, 185, 129, 0.3);
  --open-to-work-text: #34d399;
  --open-to-work-dot: #10b981;

  --scrollbar-track: #1a1a24;
  --scrollbar-thumb: #2d2d3a;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  font-size: 16px;
  overflow-x: hidden;
}

body {
  font-family: 'Outfit', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  transition: background-color 0.4s ease, color 0.4s ease;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Prevent scrolling when mobile menu is open */
html.menu-open,
body.menu-open {
  overflow: hidden !important;
}

body::-webkit-scrollbar {
  width: 8px;
}
body::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
}
body::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 4px;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color 0.3s ease;
}

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

ul {
  list-style: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================
   NAVBAR
   ============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  border-bottom: 1px solid var(--border-color);
  transition: all 0.4s ease;
  height: 72px;
}

.navbar-bg {
  position: absolute;
  inset: 0;
  background: var(--bg-navbar);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: -1;
  transition: all 0.4s ease;
}

.nav-overlay {
  display: none;
}

.navbar.scrolled .navbar-bg {
  box-shadow: var(--shadow-md);
}

.navbar-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

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

.nav-links a {
  padding: 8px 20px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: 8px;
  transition: all 0.3s ease;
  position: relative;
  letter-spacing: 0.01em;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--accent-blue);
  border-radius: 2px;
  transition: width 0.3s ease;
}

.nav-links a:hover {
  color: var(--accent-blue);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 60%;
}

.nav-links a.active {
  color: var(--accent-blue);
  font-weight: 600;
}

/* Theme Toggle */
.theme-toggle-wrapper {
  position: absolute;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
}

.theme-toggle-group {
  display: flex;
  align-items: center;
  gap: 2px;
  background: var(--bg-tertiary);
  border-radius: 12px;
  padding: 4px;
  border: 1px solid var(--border-color);
}

.theme-toggle-btn {
  width: 36px;
  height: 36px;
  border: none;
  background: transparent;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
  transition: all 0.3s ease;
  font-size: 1.1rem;
}

.theme-toggle-btn:hover {
  color: var(--text-primary);
}

.theme-toggle-btn.active {
  background: var(--accent-blue);
  color: #fff;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
}

/* Mobile menu */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  border: none;
  background: none;
  z-index: 1001;
}

.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================
   HERO SECTION — Full-Bleed Image with Fog Mask
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 72px;
  position: relative;
  overflow: hidden;
  background: var(--bg-primary);
}

/* Background grid canvas */
.hero-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
}

/* Decorative code lines floating in background */
.hero-code-lines {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.9rem;
  opacity: 0.08;
  overflow: hidden;
}

[data-theme="dark"] .hero-code-lines {
  opacity: 0.15;
}

.hero-code-lines .code-line {
  position: absolute;
  white-space: nowrap;
}

.hero-code-lines .line-1 {
  top: 18%;
  right: 8%;
  animation: float-slow 12s ease-in-out infinite alternate;
}

.hero-code-lines .line-2 {
  top: 42%;
  left: 8%;
  animation: float-slow 15s ease-in-out infinite alternate-reverse;
}

.hero-code-lines .line-3 {
  bottom: 22%;
  right: 18%;
  animation: float-slow 18s ease-in-out infinite alternate;
}

@keyframes float-slow {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(25px, -15px); }
}

/* Syntax highlighting for background code lines */
.code-kw {
  color: var(--accent-orange);
  font-weight: 600;
}
.code-var {
  color: var(--accent-blue);
}
.code-str {
  color: #10b981;
}
.code-fn {
  color: #8b5cf6;
}
.code-comment {
  color: var(--text-muted);
  font-style: italic;
}

.hero .container {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 2;
  min-height: calc(100vh - 72px);
  width: 100%;
}

/* Terminal IDE window */
.hero-content {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 40px;
  width: 100%;
  max-width: 640px;
  box-shadow: var(--shadow-xl);
  position: relative;
  z-index: 3;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.8s 0.2s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Terminal window controls */
.terminal-bar {
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 16px;
  margin-bottom: 28px;
}

.terminal-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  display: inline-block;
  margin-right: 8px;
}

.terminal-dot.red { background-color: #ef4444; }
.terminal-dot.yellow { background-color: #f59e0b; }
.terminal-dot.green { background-color: #10b981; }

.terminal-title {
  margin-left: auto;
  margin-right: auto;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--text-tertiary);
  transform: translateX(-16px); /* offsets dots width to center text */
}

/* Open to Work — bottom center of hero */
.hero-open-to-work {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translate(-50%, 20px);
  z-index: 4;
  opacity: 0;
  animation: fadeInUpCentered 0.6s 1.2s ease forwards;
}

.hero-greeting {
  font-size: 1.3rem;
  font-weight: 500;
  color: var(--accent-blue);
  margin-bottom: 8px;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.6s 0.2s ease forwards;
}

.hero-name {
  font-size: clamp(3rem, 6vw, 4.5rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 16px;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.6s 0.4s ease forwards;
}

.hero-name .highlight {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-orange));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-role-wrapper {
  min-height: 44px;
  margin-bottom: 24px;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.6s 0.6s ease forwards;
}

.hero-role {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--accent-orange);
  font-family: 'JetBrains Mono', monospace;
  position: relative;
  display: inline-block;
}

.hero-role .cursor {
  display: inline-block;
  width: 3px;
  height: 1.3em;
  background: var(--accent-orange);
  margin-left: 2px;
  vertical-align: text-bottom;
  animation: blink 0.8s infinite;
}

@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

.hero-stats {
  display: flex;
  gap: 12px;
  margin-bottom: 28px;
  flex-wrap: wrap;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.6s 0.8s ease forwards;
}

.hero-stat {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 20px;
  background: rgba(37, 99, 235, 0.06);
  border: 1px solid rgba(37, 99, 235, 0.15);
  color: var(--accent-blue);
  font-size: 0.85rem;
  font-weight: 500;
  font-family: 'JetBrains Mono', monospace;
}

[data-theme="dark"] .hero-stat {
  background: rgba(59, 130, 246, 0.1);
  border-color: rgba(59, 130, 246, 0.2);
}

.hero-cta {
  display: flex;
  gap: 16px;
  margin-top: 36px;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.6s 1.0s ease forwards;
}

.btn {
  padding: 14px 32px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: none;
  font-family: inherit;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(37, 99, 235, 0.4);
}

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

.btn-outline:hover {
  background: var(--accent-blue);
  color: #fff;
  transform: translateY(-2px);
}

/* Scroll animations */

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInUpCentered {
  from {
    opacity: 0;
    transform: translate(-50%, 20px);
  }
  to {
    opacity: 1;
    transform: translate(-50%, 0);
  }
}

@keyframes fadeInRight {
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInLeft {
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.85);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* ============================================
   SECTION COMMON
   ============================================ */
section {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-subtitle {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent-blue);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about {
  background: var(--bg-secondary);
  position: relative;
}

.about .container {
  display: flex;
  align-items: center;
  gap: 64px;
}

.about-image-col {
  flex: 0 0 400px;
  position: relative;
}

.about-image-wrapper {
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  position: relative;
}

.about-image-wrapper img {
  width: 100%;
  border-radius: 24px;
  transition: transform 0.6s ease;
}

.about-image-wrapper:hover img {
  transform: scale(1.03);
}

.about-image-wrapper::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 24px;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.15), rgba(249, 115, 22, 0.1));
  pointer-events: none;
}

.about-content {
  flex: 1;
}

.about-content h2 {
  font-size: 2.25rem;
  font-weight: 800;
  margin-bottom: 24px;
  line-height: 1.3;
}

.about-content h2 .accent {
  color: var(--accent-blue);
}

.about-text p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.8;
}

.open-to-work {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 24px;
  background: var(--open-to-work-bg);
  border: 1px solid var(--open-to-work-border);
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--open-to-work-text);
  margin-top: 20px;
  animation: pulse-badge 2.5s ease-in-out infinite;
}

.open-to-work .dot {
  width: 10px;
  height: 10px;
  background: var(--open-to-work-dot);
  border-radius: 50%;
  position: relative;
  flex-shrink: 0;
}

.open-to-work .dot::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  background: var(--open-to-work-dot);
  opacity: 0.3;
  animation: ping 2s cubic-bezier(0, 0, 0.2, 1) infinite;
}

@keyframes ping {
  0% { transform: scale(1); opacity: 0.4; }
  75%, 100% { transform: scale(2.2); opacity: 0; }
}

@keyframes pulse-badge {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.04); }
}

/* ============================================
   SKILLS SECTION
   ============================================ */
.skills {
  background: var(--bg-primary);
  position: relative;
  overflow: hidden;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
}

.skill-category {
  margin-bottom: 48px;
}

.skill-category-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent-blue);
  margin-bottom: 20px;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  position: relative;
  padding-bottom: 12px;
}

.skill-category-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

.skills-columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 16px;
}

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

.skill-column-header {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-tertiary);
  text-align: center;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-color);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.skill-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 12px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-primary);
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: default;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

/* Brand-color fill on hover */
.skill-badge:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: var(--shadow-lg);
  color: #fff;
  border-color: transparent;
}

.skill-badge[data-color]:hover {
  background: var(--skill-hover-color);
  border-color: var(--skill-hover-color);
}

.skill-badge .skill-icon {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
  transition: filter 0.3s ease;
}

.skill-badge:hover .skill-icon {
  filter: brightness(0) invert(1);
}

.skill-badge .skill-icon img {
  width: 24px;
  height: 24px;
  object-fit: contain;
}

/* Ensure badges with light brand colors have dark text on hover for contrast */
.skill-badge[data-color="duck"]:hover,
.skill-badge[data-color="hf"]:hover,
.skill-badge[data-color="linux"]:hover,
.skill-badge[data-color="js"]:hover {
  color: #10101a !important;
}

.skill-badge[data-color="duck"]:hover .skill-icon,
.skill-badge[data-color="hf"]:hover .skill-icon,
.skill-badge[data-color="linux"]:hover .skill-icon,
.skill-badge[data-color="js"]:hover .skill-icon {
  filter: none;
}

/* Invert black icons in dark mode when not hovered */
[data-theme="dark"] .skill-badge[data-color="express"] .skill-icon img,
[data-theme="dark"] .skill-badge[data-color="gh"] .skill-icon img,
[data-theme="dark"] .skill-badge[data-color="next"] .skill-icon img {
  filter: brightness(0) invert(1);
}

/* Scroll-triggered animations */
.skill-category[data-animate] .skill-category-title {
  opacity: 0;
  transform: translateX(-40px);
  transition: all 0.6s ease;
}

.skill-category[data-animate].visible .skill-category-title {
  opacity: 1;
  transform: translateX(0);
}

.skill-category[data-animate] .skill-badge {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.4s ease;
}

.skill-category[data-animate].visible .skill-badge {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   PROJECTS SECTION
   ============================================ */
.projects {
  background: var(--bg-secondary);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 28px;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 20px;
  overflow: hidden;
  transition: all 0.4s ease;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--accent-blue);
}

.project-card-image {
  width: 100%;
  height: 220px;
  overflow: hidden;
  position: relative;
}

.project-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.project-card:hover .project-card-image img {
  transform: scale(1.08);
}

.project-card-image .project-role {
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--accent-blue);
  color: #fff;
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.project-card-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.project-card-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.3;
  color: var(--text-primary);
}

.project-card-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 18px;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

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

.project-tag {
  padding: 4px 12px;
  background: var(--skill-badge-bg);
  color: var(--skill-badge-text);
  border: 1px solid var(--skill-badge-border);
  border-radius: 8px;
  font-size: 0.75rem;
  font-weight: 500;
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact {
  background: var(--bg-primary);
  text-align: center;
}

.contact-title {
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 800;
  margin-bottom: 48px;
}

.contact-title .accent {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-orange));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 32px;
  max-width: 960px;
  margin: 0 auto;
  text-align: left;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-form-container {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 20px;
  padding: 40px;
  box-shadow: var(--shadow-card);
  transition: all 0.3s ease;
}

.contact-form-container:hover {
  border-color: var(--accent-blue);
  box-shadow: var(--shadow-lg);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.5px;
}

.form-group input,
.form-group textarea {
  padding: 14px 16px;
  border-radius: 12px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-card);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  transition: all 0.3s ease;
  width: 100%;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
  opacity: 0.7;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent-blue);
  background: var(--bg-primary);
  outline: none;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-submit-btn {
  width: 100%;
  justify-content: center;
  margin-top: 8px;
}

.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 20px;
  padding: 32px 24px;
  text-align: center;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-card);
}

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

.contact-card-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: var(--skill-badge-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 1.5rem;
  color: var(--accent-blue);
}

.contact-card-label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-tertiary);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.contact-card-value {
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--text-primary);
  word-break: break-all;
  line-height: 1.4;
}

.contact-card-value a {
  color: var(--accent-blue);
  transition: color 0.3s ease;
}

.contact-card-value a:hover {
  color: var(--accent-orange);
}

/* ============================================
   FREELANCE AVAILABILITY SECTION
   ============================================ */
.freelance {
  background: var(--bg-secondary);
  padding: 96px 0;
  text-align: center;
}

.freelance-title {
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 800;
  margin-bottom: 20px;
}

.freelance-title .accent {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-orange));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.freelance-subtitle {
  max-width: 680px;
  margin: 0 auto 56px;
  color: var(--text-secondary);
  font-size: 1.1rem;
  line-height: 1.6;
}

.freelance-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  max-width: 1000px;
  margin: 0 auto 56px;
  text-align: left;
}

.freelance-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 20px;
  padding: 40px 32px;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
}

.freelance-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-blue);
}

.freelance-card-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: var(--skill-badge-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-blue);
  margin-bottom: 24px;
}

.freelance-card-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.freelance-card-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 28px;
  flex-grow: 1;
}

.freelance-card-features {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
  border-top: 1px solid var(--border-color);
  padding-top: 24px;
}

.freelance-card-features li {
  font-size: 0.88rem;
  color: var(--text-primary);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
}

.freelance-card-features li i {
  color: #10b981;
}

.freelance-status {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 20px;
  padding: 40px;
  max-width: 800px;
  margin: 0 auto;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.status-indicator {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.status-dot-pulse {
  width: 10px;
  height: 10px;
  background-color: #10b981;
  border-radius: 50%;
  display: inline-block;
  position: relative;
  flex-shrink: 0;
}

.status-dot-pulse::after {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 4px solid #10b981;
  animation: statusPulse 2s infinite;
  opacity: 0;
}

@keyframes statusPulse {
  0% {
    transform: scale(0.6);
    opacity: 0.8;
  }
  100% {
    transform: scale(1.8);
    opacity: 0;
  }
}

.status-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  max-width: 600px;
  line-height: 1.6;
  margin-bottom: 28px;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 48px 0 32px;
}

.footer-content {
  text-align: center;
}

.footer-socials {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 24px;
}

.footer-social-link {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 1.25rem;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
}

.footer-social-link:hover {
  background: var(--accent-blue);
  color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.3);
  border-color: var(--accent-blue);
}

.footer-copyright {
  font-size: 0.9rem;
  color: var(--text-tertiary);
  margin-bottom: 8px;
}

.footer-tagline {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-style: italic;
}

.footer-tagline .accent {
  color: var(--accent-orange);
  font-weight: 600;
}

/* ============================================
   SCROLL TO TOP
   ============================================ */
.scroll-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: var(--accent-blue);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all 0.3s ease;
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.3);
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-top:hover {
  background: var(--accent-blue-dark);
  transform: translateY(-3px);
}

/* ============================================
   ANIMATIONS (scroll-triggered) — Enhanced
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(50px);
  transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-60px);
  transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.reveal-right {
  opacity: 0;
  transform: translateX(60px);
  transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.reveal-scale {
  opacity: 0;
  transform: scale(0.88);
  transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.reveal-rotate {
  opacity: 0;
  transform: perspective(800px) rotateY(15deg) translateX(30px);
  transition: all 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-rotate.visible {
  opacity: 1;
  transform: perspective(800px) rotateY(0) translateX(0);
}

/* Staggered animation for children */
.stagger-children > * {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.stagger-children.visible > *:nth-child(1) { transition-delay: 0.06s; }
.stagger-children.visible > *:nth-child(2) { transition-delay: 0.12s; }
.stagger-children.visible > *:nth-child(3) { transition-delay: 0.18s; }
.stagger-children.visible > *:nth-child(4) { transition-delay: 0.24s; }
.stagger-children.visible > *:nth-child(5) { transition-delay: 0.30s; }
.stagger-children.visible > *:nth-child(6) { transition-delay: 0.36s; }
.stagger-children.visible > *:nth-child(7) { transition-delay: 0.42s; }
.stagger-children.visible > *:nth-child(8) { transition-delay: 0.48s; }
.stagger-children.visible > *:nth-child(9) { transition-delay: 0.54s; }
.stagger-children.visible > *:nth-child(10) { transition-delay: 0.60s; }

.stagger-children.visible > * {
  opacity: 1;
  transform: translateY(0);
}

/* Parallax-like scroll depth for project cards */
.project-card {
  transition: all 0.4s ease, opacity 0.6s ease, transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .hero-content {
    max-width: 600px;
  }

  .hero-cta {
    justify-content: flex-start;
  }

  .about .container {
    flex-direction: column;
  }

  .about-image-col {
    flex: none;
    width: 100%;
    max-width: 400px;
  }

  .about-content {
    text-align: center;
  }

  .open-to-work {
    justify-content: center;
  }

  .projects-grid {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  }

  .contact-layout {
    grid-template-columns: 1fr;
    max-width: 640px;
    margin: 0 auto;
    gap: 28px;
  }

  .freelance-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
}

@media (max-width: 991px) {
  .hamburger {
    display: flex;
    position: absolute;
    right: 24px;
    top: 50%;
    transform: translateY(-50%);
  }

  .nav-overlay {
    display: block;
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0);
    backdrop-filter: blur(0px);
    -webkit-backdrop-filter: blur(0px);
    z-index: 999;
    pointer-events: none;
    transition: background-color 0.4s ease, backdrop-filter 0.4s ease;
  }

  .nav-overlay.show {
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    pointer-events: auto;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 280px;
    max-width: 80vw;
    background: #000000; /* pure solid black background */
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    padding: 96px 24px 24px;
    gap: 10px;
    transform: translateX(100%);
    visibility: hidden;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.4s;
    box-shadow: -8px 0 32px rgba(0, 0, 0, 0.5);
    border-left: 1px solid rgba(255, 255, 255, 0.05);
    z-index: 1000;
  }

  .nav-links.open {
    transform: translateX(0);
    visibility: visible;
  }

  .nav-links li {
    width: 100%;
    text-align: left;
    display: flex;
    justify-content: flex-start;
  }

  .nav-links a {
    font-size: 1.1rem;
    padding: 14px 20px;
    color: #c8cdd5;
    width: 100%;
    display: flex;
    align-items: center;
    border-radius: 10px;
    transition: all 0.3s ease;
  }

  .nav-links a:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.05);
  }

  .nav-links a.active {
    color: var(--accent-blue-light);
    background: rgba(59, 130, 246, 0.1);
    font-weight: 600;
  }

  /* Disable underline active state in mobile sidebar */
  .nav-links a::after {
    display: none;
  }

  .theme-toggle-wrapper {
    right: 74px;
  }
}

@media (max-width: 768px) {
  html {
    font-size: 15px;
  }

  .hero-content {
    max-width: calc(100% - 32px);
    padding: 28px 20px;
    margin: 0 16px;
  }

  .hero-cta {
    justify-content: flex-start;
  }

  section {
    padding: 72px 0;
  }

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

  .skills-columns {
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  }

  .contact-card-value {
    font-size: 0.8rem;
  }

  .freelance-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin: 0 auto 40px;
  }

  .freelance-status {
    padding: 32px 24px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .nav-logo {
    left: 16px;
  }

  .hamburger {
    right: 16px;
  }

  .theme-toggle-wrapper {
    right: 64px;
  }

  .hero-name {
    font-size: 2.5rem;
  }

  .hero-role {
    font-size: 1.1rem;
  }

  .hero-cta {
    flex-direction: column;
    align-items: center;
  }

  .theme-toggle-group {
    padding: 2px;
  }

  .theme-toggle-btn {
    width: 30px;
    height: 30px;
  }
}

/* ============================================
   SKILLS SECTION - DETAILED LAYOUT
   ============================================ */
.skills-section-inner {
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.skill-group {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 20px;
  padding: 32px;
  box-shadow: var(--shadow-card);
}

.skill-group-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-primary);
  text-align: center;
  margin-bottom: 28px;
  position: relative;
  padding-bottom: 16px;
}

.skill-group-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

.skill-group-columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 24px;
}

.skill-group-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.skill-group-col-header {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-tertiary);
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-color);
}

/* Logo navbar branding */
.nav-logo {
  position: absolute;
  left: 24px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.4rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-logo .logo-bracket {
  color: var(--accent-blue);
  font-family: 'JetBrains Mono', monospace;
}

.nav-logo .logo-name {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-orange));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Spinner Animation Utility */
.animate-spin {
  animation: spin 1s linear infinite;
  display: inline-block;
}

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