/* =============================================
   ZIAD EHAB — PORTFOLIO (Josh Comeau Style)
   ============================================= */

/* === GOOGLE FONTS === */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* === CSS CUSTOM PROPERTIES === */
:root {
  /* Colors - Light Mode */
  --color-text: hsl(222deg 22% 5%);
  --color-background: hsl(0deg 0% 100%);
  --color-background-secondary: hsl(225deg 40% 97%);
  --color-primary: hsl(240deg 95% 62%);
  --color-secondary: hsl(333deg 100% 45%);
  --color-tertiary: hsl(255deg 85% 30%);
  --color-decorative: hsl(200deg 75% 65%);
  --color-muted: hsl(225deg 8% 55%);
  --color-border: hsl(225deg 16% 88%);
  --color-card-bg: hsl(0deg 0% 100%);
  --color-card-shadow: hsl(225deg 25% 20% / 0.08);

  /* Cloud colors */
  --color-cloud-back: hsl(210deg 60% 91%);
  --color-cloud-front: hsl(215deg 70% 88%);

  /* Glassmorphism */
  --glass-bg: hsl(0deg 0% 100% / 0.7);
  --glass-border: hsl(0deg 0% 100% / 0.3);

  /* Typography */
  --font-family: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-family-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing */
  --header-height: 68px;
  --section-padding: 6rem 1.5rem;
  --max-width: 1100px;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-med: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 600ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Shadows */
  --shadow-sm: 2px 2px 0px var(--color-border);
  --shadow-md: 4px 4px 0px var(--color-text);
  --shadow-lg: 6px 6px 0px var(--color-primary);
  --shadow-xl: 8px 8px 0px var(--color-primary);

  /* Sketchy border-radii */
  --radius-sketchy-1: 255px 15px 225px 15px / 15px 225px 15px 255px;
  --radius-sketchy-2: 15px 225px 15px 255px / 255px 15px 225px 15px;
  --radius-sketchy-3: 100px 15px 95px 15px / 15px 95px 15px 100px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
}

/* === DARK MODE === */
[data-color-mode="dark"] {
  --color-text: hsl(210deg 10% 90%);
  --color-background: hsl(210deg 15% 6%);
  --color-background-secondary: hsl(210deg 15% 10%);
  --color-primary: hsl(225deg 100% 75%);
  --color-secondary: hsl(333deg 100% 55%);
  --color-tertiary: hsl(280deg 100% 85%);
  --color-decorative: hsl(200deg 50% 60%);
  --color-muted: hsl(210deg 8% 55%);
  --color-border: hsl(210deg 15% 20%);
  --color-card-bg: hsl(210deg 15% 10%);
  --color-card-shadow: hsl(0deg 0% 0% / 0.3);
  --color-cloud-back: hsl(214deg 40% 11%);
  --color-cloud-front: hsl(212deg 40% 9%);
  --glass-bg: hsl(210deg 15% 10% / 0.8);
  --glass-border: hsl(210deg 15% 25% / 0.5);
  --shadow-sm: 0 1px 3px hsl(0deg 0% 0% / 0.3);
  --shadow-md: 0 4px 12px hsl(0deg 0% 0% / 0.35);
  --shadow-lg: 0 12px 32px hsl(0deg 0% 0% / 0.4);
  --shadow-xl: 0 24px 48px hsl(0deg 0% 0% / 0.5);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 20px);
}

body {
  font-family: var(--font-family);
  background-color: var(--color-background);
  color: var(--color-text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 350ms ease, color 350ms ease;
  overflow-x: hidden;
}

/* === CANVAS FOR PARTICLES === */
#particles-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  opacity: 0.3;
}

/* === CURSOR GLOW === */
.cursor-glow {
  position: fixed;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, hsl(240deg 95% 62% / 0.12) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  transform: translate(-50%, -50%);
  z-index: 0;
  transition: opacity 0.3s ease;
}

[data-color-mode="dark"] .cursor-glow {
  background: radial-gradient(circle, hsl(225deg 100% 75% / 0.1) 0%, transparent 70%);
}

/* === TYPOGRAPHY === */
h1, h2, h3, h4 {
  line-height: 1.2;
  letter-spacing: -0.02em;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast), opacity var(--transition-fast);
}

a:hover { opacity: 0.8; }

code {
  font-family: var(--font-family-mono);
  font-size: 0.875em;
  background: var(--color-background-secondary);
  padding: 0.15em 0.4em;
  border-radius: 4px;
}

/* === HEADER === */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: background-color var(--transition-med), border-color var(--transition-med);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 2rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 2px;
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--color-text) !important;
  text-decoration: none;
  letter-spacing: -0.03em;
  flex-shrink: 0;
}

.logo-first { color: var(--color-primary); }
.logo-last { color: var(--color-text); }

.logo-wave {
  color: var(--color-secondary);
  display: inline-flex;
  align-items: center;
  animation: wiggle 2s ease-in-out infinite;
}

@keyframes wiggle {
  0%, 100% { transform: rotate(-5deg); }
  50% { transform: rotate(5deg); }
}

.main-nav {
  flex: 1;
  display: flex;
  justify-content: center;
}

.main-nav ul {
  display: flex;
  list-style: none;
  gap: 0.25rem;
  align-items: center;
}

.nav-link {
  display: inline-block;
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-muted) !important;
  transition: color var(--transition-fast), background var(--transition-fast);
  cursor: pointer;
}

.nav-link:hover {
  color: var(--color-text) !important;
  background: var(--color-background-secondary);
  opacity: 1;
}

.nav-link--active {
  color: var(--color-primary) !important;
  font-weight: 700;
  background: hsl(240deg 95% 62% / 0.05);
}

.nav-link--cta {
  background: var(--color-primary);
  color: white !important;
  padding: 0.4rem 1.1rem;
  font-weight: 600;
}

.nav-link--cta:hover {
  color: white !important;
  background: var(--color-tertiary);
  opacity: 1;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px hsl(240deg 95% 62% / 0.4);
}

.theme-toggle,
.sound-toggle {
  background: var(--color-background-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  width: 40px;
  height: 40px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.theme-toggle:hover,
.sound-toggle:hover {
  transform: scale(1.1) rotate(10deg);
  border-color: var(--color-primary);
}

.theme-icon, .sound-icon {
  display: none;
  line-height: 1;
}

[data-color-mode="light"] .theme-icon.moon { display: block; }
[data-color-mode="dark"] .theme-icon.sun { display: block; }

.sound-on .sound-icon.on { display: block; }
.sound-off .sound-icon.off { display: block; }
.sound-toggle { }

/* GitHub orbit icon: white in dark mode */
[data-color-mode="dark"] .github-icon-svg { fill: #ddd; }

/* === THEME TRANSITION ANIMATION === */
::view-transition-old(root),
::view-transition-new(root) {
  animation: none;
  mix-blend-mode: normal;
}

::view-transition-old(root) {
  z-index: 1;
}

::view-transition-new(root) {
  z-index: 9999;
}

.theme-toggle-spin {
  animation: theme-icon-spin 0.55s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes theme-icon-spin {
  0% { transform: scale(1) rotate(0deg); }
  50% { transform: scale(0.6) rotate(180deg); }
  100% { transform: scale(1) rotate(360deg); }
}

html.theme-transitioning,
html.theme-transitioning *,
html.theme-transitioning *::before,
html.theme-transitioning *::after {
  transition: background-color 0.45s ease-out,
              color 0.45s ease-out,
              border-color 0.45s ease-out,
              box-shadow 0.45s ease-out,
              fill 0.45s ease-out !important;
}

/* === HERO === */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: var(--header-height);
  overflow: hidden;
  background: linear-gradient(
    180deg,
    var(--color-cloud-back) 0%,
    var(--color-background) 60%
  );
}

.hero-clouds {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 320px;
  pointer-events: none;
}

.cloud-svg {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.cloud-back { opacity: 0.6; }
.cloud-front { opacity: 0.8; }
.cloud-page { z-index: 1; }

.hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 6rem 1.5rem 12rem;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 4rem;
  align-items: center;
}

.hero-text {
  text-align: left;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  z-index: 5;
}

.hero-illustration {
  display: flex;
  justify-content: center;
  align-items: center;
  perspective: 1000px;
}

/* === ORBIT ANIMATION === */
.flutter-orbit {
  position: relative;
  width: 450px;
  height: 450px;
  flex-shrink: 0;
  margin-bottom: 0.5rem;
  transform-style: preserve-3d;
  will-change: transform;
}

.orbit-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1.5px dashed var(--color-border);
}

.orbit-ring-1 {
  width: 290px;
  height: 290px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: orbit-spin 8s linear infinite;
}

.orbit-ring-2 {
  width: 370px;
  height: 370px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: orbit-spin 12s linear infinite reverse;
}

.orbit-ring-3 {
  width: 450px;
  height: 450px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: orbit-spin 18s linear infinite;
}

@keyframes orbit-spin {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to   { transform: translate(-50%, -50%) rotate(360deg); }
}

.orbit-icon {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 40px;
  height: 40px;
  margin-top: -20px;
  margin-left: -20px;
  background: var(--color-card-bg);
  border: 1.5px solid var(--color-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  transform-origin: center center;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.orbit-icon:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.orbit-icon-magnet {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  will-change: transform;
}

.orbit-icon-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  will-change: transform;
}

/* Counter rotation to keep icons upright */
.orbit-ring-1 .orbit-icon-inner {
  animation: orbit-counter-spin 8s linear infinite;
}

.orbit-ring-2 .orbit-icon-inner {
  animation: orbit-counter-spin 12s linear infinite reverse;
}

.orbit-ring-3 .orbit-icon-inner {
  animation: orbit-counter-spin 18s linear infinite;
}

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

.orbit-ring-1 .orbit-icon:nth-child(1) {
  transform: translateY(-145px);
}
.orbit-ring-1 .orbit-icon:nth-child(2) {
  transform: translateY(145px);
}

.orbit-ring-2 .orbit-icon:nth-child(1) {
  transform: translateY(-185px);
}
.orbit-ring-2 .orbit-icon:nth-child(2) {
  transform: translateY(185px);
}

.orbit-ring-3 .orbit-icon:nth-child(1) {
  transform: rotate(60deg) translateY(-225px) rotate(-60deg);
}
.orbit-ring-3 .orbit-icon:nth-child(2) {
  transform: rotate(200deg) translateY(-225px) rotate(-200deg);
}

/* Photo in the centre of orbit --*/
.hero-photo-wrapper {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
}

.hero-photo {
  width: 250px;
  height: 250px;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid var(--color-primary);
  box-shadow: 0 0 0 10px hsl(240deg 95% 62% / 0.15), var(--shadow-lg);
  animation: float 4s ease-in-out infinite;
  background: var(--color-background-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

.hero-photo-placeholder {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, hsl(240deg 95% 62% / 0.15), hsl(333deg 100% 55% / 0.1));
}

.hero-photo-placeholder svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.photo-initials {
  position: relative;
  z-index: 1;
  font-size: 3rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-photo-glow {
  position: absolute;
  inset: -24px;
  border-radius: 50%;
  background: radial-gradient(circle, hsl(240deg 95% 62% / 0.25) 0%, transparent 70%);
  z-index: -1;
  animation: pulse-glow 3s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.08); }
}


.hero-name {
  font-size: clamp(3.2rem, 6.5vw, 5rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
  white-space: nowrap;
}

.hero-intro {
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 2rem;
}

.btn-hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 1rem 2.2rem;
  background: var(--color-primary);
  color: white;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: all 200ms cubic-bezier(0.34, 1.56, 0.64, 1);
  text-decoration: none;
  border: none;
  box-shadow: 0 6px 20px hsl(240deg 95% 62% / 0.4);
  margin-top: 0.5rem;
}

.btn-hero-cta:hover {
  transform: translateY(-4px) scale(1.03);
  box-shadow: 0 10px 28px hsl(240deg 95% 62% / 0.55);
  opacity: 1;
  color: white;
}

.btn-hero-cta svg {
  animation: bounce-down 1.4s ease-in-out infinite;
}

@keyframes bounce-down {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(4px); }
}


.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.6rem;
  border-radius: var(--radius-sketchy-1);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 200ms cubic-bezier(0.34, 1.56, 0.64, 1);
  text-decoration: none;
  border: 2px solid var(--color-text);
}

.btn-primary {
  background: var(--color-primary);
  color: white;
  box-shadow: 4px 4px 0px var(--color-text);
}

.btn-primary:hover {
  transform: translateY(-2px) translateX(-2px);
  box-shadow: 6px 6px 0px var(--color-secondary);
  opacity: 1;
  color: white;
  border-radius: var(--radius-sketchy-2);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border: 2px solid var(--color-text);
  box-shadow: 3px 3px 0px var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-2px) translateX(-2px);
  box-shadow: 5px 5px 0px var(--color-primary);
  opacity: 1;
  border-radius: var(--radius-sketchy-2);
}

.hero-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.stack-tag {
  padding: 0.3rem 0.8rem;
  background: var(--color-background-secondary);
  border: 1.5px solid var(--color-text);
  border-radius: var(--radius-sketchy-3);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-text);
  font-family: var(--font-family-mono);
  cursor: default;
  transition: all var(--transition-fast);
}

.stack-tag:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background: hsl(240deg 95% 62% / 0.08);
  transform: translateY(-2px) rotate(1deg);
}



/* === SECTIONS === */
.section {
  position: relative;
  padding: var(--section-padding);
}

.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.section-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-border);
  max-width: 60px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  margin-bottom: 3rem;
  letter-spacing: -0.03em;
}

/* === ABOUT SECTION === */
.about-section {
  background: var(--color-background);
}

.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 4rem;
  align-items: start;
}

.about-text p {
  margin-bottom: 1.25rem;
  font-size: 1.05rem;
  color: var(--color-text);
  line-height: 1.75;
}

.about-text strong {
  color: var(--color-primary);
}

.about-quote {
  border-left: 3px solid var(--color-primary);
  padding: 1rem 1.5rem;
  margin-top: 2rem;
  font-style: italic;
  font-size: 1.05rem;
  background: hsl(240deg 95% 62% / 0.05);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--color-muted);
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.stat-card {
  background: var(--color-card-bg);
  border: 2px solid var(--color-text);
  border-radius: var(--radius-sketchy-1);
  padding: 1.5rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all 200ms cubic-bezier(0.34, 1.56, 0.64, 1);
  cursor: default;
}

.stat-card:hover {
  transform: translateY(-2px) translateX(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
  border-radius: var(--radius-sketchy-2);
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 900;
  line-height: 1;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.4rem;
}

.stat-label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-muted);
}

.journey-timeline {
  grid-column: 1 / -1;
  background: var(--color-card-bg);
  border: 2px solid var(--color-text);
  border-radius: var(--radius-sketchy-2);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.journey-timeline h3 {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.timeline-item {
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
  padding: 0.5rem 0;
  position: relative;
}

.timeline-item:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 6px;
  top: 20px;
  bottom: -8px;
  width: 2px;
  background: var(--color-border);
}

.timeline-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-border);
  border: 2px solid var(--color-border);
  flex-shrink: 0;
  margin-top: 3px;
  transition: all var(--transition-fast);
}

.timeline-item--active .timeline-dot {
  background: var(--color-primary);
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px hsl(240deg 95% 62% / 0.2);
}

.timeline-item strong {
  font-size: 0.9rem;
  display: block;
}

.timeline-item p {
  font-size: 0.8rem;
  color: var(--color-muted);
}

/* === EDUCATION SECTION === */
.edu-section {
  background: var(--color-background-secondary);
}

.edu-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.edu-col-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  color: var(--color-text);
}

.edu-card {
  background: var(--color-card-bg);
  border: 2px solid var(--color-text);
  border-radius: var(--radius-sketchy-1);
  padding: 1.5rem;
  margin-bottom: 1rem;
  box-shadow: var(--shadow-sm);
  transition: all 200ms cubic-bezier(0.34, 1.56, 0.64, 1);
  cursor: default;
}

.edu-card:hover {
  transform: translateY(-2px) translateX(-2px);
  box-shadow: var(--shadow-md);
  border-radius: var(--radius-sketchy-2);
  border-color: var(--color-primary);
}

.edu-card--gold { border-left: 3px solid hsl(45deg 100% 50%); }
.edu-card--purple { border-left: 3px solid var(--color-primary); }

.edu-card-header {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.edu-card h4 {
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.4;
}

.edu-badge {
  flex-shrink: 0;
  background: var(--color-primary);
  color: white;
  border-radius: var(--radius-sm);
  padding: 0.2rem 0.5rem;
  font-size: 0.7rem;
  font-weight: 700;
  font-family: var(--font-family-mono);
}

.edu-badge--gold { background: hsl(45deg 100% 50%); color: hsl(45deg 100% 20%); }
.edu-badge--purple { background: var(--color-secondary); }

.edu-card p {
  font-size: 0.875rem;
  color: var(--color-muted);
  margin-bottom: 0.75rem;
  line-height: 1.6;
}

.edu-link {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  transition: all var(--transition-fast);
}

.edu-link:hover {
  gap: 0.25rem;
  opacity: 1;
}

.edu-links-row {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* === SKILLS SECTION === */
.skills-section {
  background: var(--color-background);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.skill-group {
  background: var(--color-card-bg);
  border: 2px solid var(--color-text);
  border-radius: var(--radius-sketchy-2);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  transition: all 200ms cubic-bezier(0.34, 1.56, 0.64, 1);
  cursor: default;
}

.skill-group:hover {
  transform: translateY(-2px) translateX(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
  border-radius: var(--radius-sketchy-1);
}

.skill-group-icon {
  font-size: 2rem;
  margin-bottom: 0.75rem;
}

.skill-group h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.skill-note {
  font-size: 0.75rem;
  color: var(--color-muted);
  font-style: italic;
  margin-bottom: 0.75rem;
  line-height: 1.5;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.75rem;
}

.skill-tag {
  padding: 0.25rem 0.65rem;
  background: var(--color-background-secondary);
  border: 1px solid var(--color-border);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-text);
  transition: all var(--transition-fast);
  cursor: default;
}

.skill-group:hover .skill-tag {
  border-color: hsl(240deg 95% 62% / 0.3);
  background: hsl(240deg 95% 62% / 0.06);
}

.skill-tag--lang {
  font-size: 0.8rem;
  padding: 0.3rem 0.8rem;
  background: hsl(240deg 95% 62% / 0.1);
  border-color: hsl(240deg 95% 62% / 0.3);
  color: var(--color-primary);
  font-weight: 600;
}

/* === EXPERIENCE SECTION === */
.exp-section {
  background: var(--color-background-secondary);
}

.exp-timeline {
  position: relative;
}

.exp-item {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.exp-marker {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 0.35rem;
}

.exp-dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-border);
  border: 3px solid var(--color-border);
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.exp-dot--active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px hsl(240deg 95% 62% / 0.2);
}

.exp-line {
  flex: 1;
  width: 2px;
  background: var(--color-border);
  margin-top: 4px;
}

.exp-content {
  background: var(--color-card-bg);
  border: 2px solid var(--color-text);
  border-radius: var(--radius-sketchy-1);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: all 200ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

.exp-item:hover .exp-content {
  transform: translateY(-2px) translateX(2px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
  border-radius: var(--radius-sketchy-2);
}

.exp-item:hover .exp-dot--active {
  transform: scale(1.2);
}

.exp-meta {
  margin-bottom: 0.5rem;
}

.exp-type {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.2rem 0.6rem;
  border-radius: 100px;
}

.exp-type--training { background: hsl(220deg 80% 95%); color: hsl(220deg 80% 40%); }
.exp-type--freelance { background: hsl(145deg 80% 90%); color: hsl(145deg 80% 25%); }
.exp-type--upwork { background: hsl(160deg 100% 88%); color: hsl(160deg 80% 25%); }

[data-color-mode="dark"] .exp-type--training { background: hsl(220deg 40% 20%); color: hsl(220deg 80% 75%); }
[data-color-mode="dark"] .exp-type--freelance { background: hsl(145deg 40% 15%); color: hsl(145deg 60% 65%); }
[data-color-mode="dark"] .exp-type--upwork { background: hsl(160deg 40% 15%); color: hsl(160deg 60% 65%); }

.exp-content h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.exp-content p {
  color: var(--color-muted);
  font-size: 0.9rem;
  line-height: 1.65;
}

.exp-details { margin-top: 0.75rem; }

.exp-detail-item {
  margin-bottom: 0.75rem;
}

.exp-detail-item strong {
  display: block;
  font-size: 0.875rem;
  color: var(--color-text);
  margin-bottom: 0.25rem;
}

.exp-cert-link {
  display: inline-flex;
  align-items: center;
  font-size: 0.8rem;
  font-weight: 600;
  margin-top: 0.75rem;
  color: var(--color-primary);
  transition: all var(--transition-fast);
}

.exp-cert-link:hover {
  gap: 0.25rem;
  opacity: 1;
}

/* === SERVICES SECTION === */
.services-section {
  background: var(--color-background);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.service-card {
  background: var(--color-card-bg);
  border: 2px solid var(--color-text);
  border-radius: var(--radius-sketchy-2);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  transition: all 200ms cubic-bezier(0.34, 1.56, 0.64, 1);
  cursor: default;
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  transform: scaleX(0);
  transition: transform var(--transition-med);
  transform-origin: left;
}

.service-card:hover::before { transform: scaleX(1); }

.service-card:hover {
  transform: translateY(-2px) translateX(-2px);
  box-shadow: var(--shadow-md);
  border-radius: var(--radius-sketchy-1);
}

.service-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  display: block;
}

.service-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  line-height: 1.3;
}

.service-card p {
  font-size: 0.9rem;
  color: var(--color-muted);
  line-height: 1.7;
}

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

.projects-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.project-card {
  background: var(--color-card-bg);
  border: 2px solid var(--color-text);
  border-radius: var(--radius-sketchy-1);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all 200ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

.project-card:hover {
  transform: translateY(-2px) translateX(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
  border-radius: var(--radius-sketchy-2);
}

.project-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.75rem 2rem 1.25rem;
  border-bottom: 1px solid var(--color-border);
}

.project-num {
  font-size: 0.75rem;
  font-weight: 700;
  font-family: var(--font-family-mono);
  color: var(--color-primary);
  background: hsl(240deg 95% 62% / 0.1);
  padding: 0.3rem 0.6rem;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.project-header h3 {
  font-size: 1.2rem;
  font-weight: 800;
  flex: 1;
}

.project-github {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text) !important;
  background: var(--color-background-secondary);
  border: 1px solid var(--color-border);
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  white-space: nowrap;
  flex-shrink: 0;
}

.project-github:hover {
  border-color: var(--color-primary);
  color: var(--color-primary) !important;
  opacity: 1;
}

.project-body {
  padding: 1.5rem 2rem 2rem;
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 2rem;
  align-items: start;
}

.project-image {
  width: 100%;
  overflow: hidden;
  border-top: 1.5px solid var(--color-border);
  border-bottom: 1.5px solid var(--color-border);
  background: var(--color-background);
}

.project-image img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

.impact-label {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-secondary);
  margin-bottom: 0.75rem;
}

.project-impact p {
  font-size: 0.9rem;
  color: var(--color-muted);
  line-height: 1.7;
  margin-bottom: 0.75rem;
}

.project-stack {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.stack-item {
  padding: 0.3rem 0.7rem;
  background: hsl(240deg 95% 62% / 0.07);
  border: 1px solid hsl(240deg 95% 62% / 0.2);
  border-radius: var(--radius-sm);
  font-size: 0.73rem;
  font-weight: 500;
  color: var(--color-primary);
  font-family: var(--font-family-mono);
}

/* === CONTACT SECTION === */
.contact-section {
  background: linear-gradient(
    180deg,
    var(--color-background) 0%,
    var(--color-cloud-back) 100%
  );
  position: relative;
  overflow: hidden;
}

.contact-clouds {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  pointer-events: none;
}

.contact-inner {
  text-align: center;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 3rem;
  margin-top: 2.5rem;
  align-items: start;
}

.contact-col {
  text-align: left;
}

.contact-col-title {
  font-size: 1.15rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  color: var(--color-text);
}

.contact-col--info {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.contact-tagline {
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--color-muted);
  margin: 0 0 0.75rem;
}

.contact-sub {
  font-size: 0.95rem;
  color: var(--color-muted);
  margin: 0 0 2rem;
  line-height: 1.7;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  background: var(--color-card-bg);
  border: 2px solid var(--color-text);
  border-radius: var(--radius-sketchy-1);
  box-shadow: var(--shadow-sm);
  text-decoration: none;
  color: var(--color-text) !important;
  transition: all 200ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

.contact-card:hover {
  transform: translateY(-2px) translateX(2px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
  border-radius: var(--radius-sketchy-2);
  opacity: 1;
}

.contact-card-icon {
  font-size: 1.75rem;
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-background-secondary);
  border-radius: var(--radius-md);
}

.contact-card-text {
  flex: 1;
  text-align: left;
}

.contact-card-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-muted);
  margin-bottom: 0.2rem;
}

.contact-card-value {
  display: block;
  font-weight: 600;
  font-size: 0.95rem;
}

.contact-card-arrow {
  color: var(--color-muted);
  transition: transform var(--transition-fast), color var(--transition-fast);
  flex-shrink: 0;
}

.contact-card:hover .contact-card-arrow {
  transform: translateX(4px);
  color: var(--color-primary);
}

/* === CONTACT FORM === */
.contact-form-wrapper {
  width: 100%;
}

.contact-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

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

.form-group--full {
  grid-column: 1 / -1;
}

.form-label {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-muted);
}

.form-input {
  font-family: var(--font-family);
  font-size: 0.95rem;
  padding: 0.85rem 1.1rem;
  background: var(--color-card-bg);
  color: var(--color-text);
  border: 2px solid var(--color-text);
  border-radius: var(--radius-sketchy-3);
  box-shadow: var(--shadow-sm);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), border-radius var(--transition-fast);
}

.form-input::placeholder {
  color: var(--color-muted);
  opacity: 0.5;
}

.form-input:focus {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius-sketchy-1);
}

.form-input.form-input--error {
  border-color: var(--color-secondary);
  box-shadow: 3px 3px 0px var(--color-secondary);
}

.form-textarea {
  resize: vertical;
  min-height: 130px;
  line-height: 1.6;
}

.form-error {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-secondary);
  min-height: 1.1em;
  transition: opacity var(--transition-fast);
}

.form-error--global {
  text-align: center;
  font-size: 0.85rem;
  margin-bottom: 0.5rem;
}

.form-submit-row {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.btn-form-submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.95rem 2.5rem;
  font-family: var(--font-family);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: white;
  background: var(--color-primary);
  border: 2px solid var(--color-text);
  border-radius: var(--radius-sketchy-1);
  box-shadow: var(--shadow-md);
  cursor: pointer;
  transition: all 200ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

.btn-form-submit:hover {
  transform: translateY(-2px) translateX(-2px);
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius-sketchy-2);
}

.btn-form-submit:active {
  transform: translateY(1px) translateX(1px);
  box-shadow: none;
}

.btn-form-submit:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
  box-shadow: var(--shadow-sm);
}

.btn-form-submit .btn-loader {
  display: none;
  animation: spin 1s linear infinite;
}

.btn-form-submit.is-loading .btn-text { display: none; }
.btn-form-submit.is-loading .btn-arrow { display: none; }
.btn-form-submit.is-loading .btn-loader { display: inline-flex; }

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

/* Contact Form Success */
.contact-form-success {
  text-align: center;
  padding: 3rem 2rem;
  background: var(--color-card-bg);
  border: 2px solid var(--color-text);
  border-radius: var(--radius-sketchy-1);
  box-shadow: var(--shadow-md);
  animation: fadeInUp 0.5s ease forwards;
}

.contact-form-success .success-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  animation: bounceIn 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.contact-form-success h3 {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  color: var(--color-primary);
}

.contact-form-success p {
  color: var(--color-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.btn-send-another {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.7rem 1.5rem;
  font-family: var(--font-family);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-primary);
  background: transparent;
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-sketchy-2);
  cursor: pointer;
  transition: all 200ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

.btn-send-another:hover {
  background: var(--color-primary);
  color: white;
  box-shadow: var(--shadow-sm);
  border-radius: var(--radius-sketchy-1);
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes bounceIn {
  0% { transform: scale(0); }
  60% { transform: scale(1.2); }
  100% { transform: scale(1); }
}

/* Responsive form */
@media (max-width: 600px) {
  .contact-form {
    grid-template-columns: 1fr;
  }
}

/* === FOOTER === */
.site-footer {
  background: var(--color-cloud-back);
  border-top: 1px solid var(--color-border);
  padding: 2rem 1.5rem;
  text-align: center;
}

.footer-inner p {
  font-size: 0.875rem;
  color: var(--color-muted);
  line-height: 1.6;
}

.footer-inner strong {
  color: var(--color-primary);
}

/* === SCROLL REVEAL ANIMATIONS === */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* === RESPONSIVE === */
@media (max-width: 900px) {
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .contact-col--info {
    text-align: center;
  }

  .contact-tagline,
  .contact-sub {
    margin-left: auto;
    margin-right: auto;
    max-width: 550px;
  }

  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 3rem;
    padding-top: 4rem;
    padding-bottom: 8rem;
  }

  .hero-text {
    text-align: center;
    align-items: center;
  }

  .flutter-orbit {
    width: 320px;
    height: 320px;
  }

  .orbit-ring-1 {
    width: 210px;
    height: 210px;
  }
  .orbit-ring-1 .orbit-icon {
    transform: translateY(-105px);
  }

  .orbit-ring-2 {
    width: 265px;
    height: 265px;
  }
  .orbit-ring-2 .orbit-icon:nth-child(1) {
    transform: translateY(-132px);
  }
  .orbit-ring-2 .orbit-icon:nth-child(2) {
    transform: translateY(132px);
  }

  .orbit-ring-3 {
    width: 320px;
    height: 320px;
  }
  .orbit-ring-3 .orbit-icon:nth-child(1) {
    transform: rotate(60deg) translateY(-160px) rotate(-60deg);
  }
  .orbit-ring-3 .orbit-icon:nth-child(2) {
    transform: rotate(200deg) translateY(-160px) rotate(-200deg);
  }

  .hero-photo {
    width: 180px;
    height: 180px;
  }

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

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

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

  .project-body {
    grid-template-columns: 1fr;
  }

  .main-nav ul {
    display: none;
  }
}

@media (max-width: 600px) {
  :root {
    --section-padding: 4rem 1rem;
  }

  .flutter-orbit {
    width: 270px;
    height: 270px;
  }

  .orbit-ring-1 {
    width: 180px;
    height: 180px;
  }
  .orbit-ring-1 .orbit-icon {
    transform: translateY(-90px);
  }

  .orbit-ring-2 {
    width: 225px;
    height: 225px;
  }
  .orbit-ring-2 .orbit-icon:nth-child(1) {
    transform: translateY(-112px);
  }
  .orbit-ring-2 .orbit-icon:nth-child(2) {
    transform: translateY(112px);
  }

  .orbit-ring-3 {
    width: 270px;
    height: 270px;
  }
  .orbit-ring-3 .orbit-icon:nth-child(1) {
    transform: rotate(60deg) translateY(-135px) rotate(-60deg);
  }
  .orbit-ring-3 .orbit-icon:nth-child(2) {
    transform: rotate(200deg) translateY(-135px) rotate(-200deg);
  }

  .hero-photo {
    width: 150px;
    height: 150px;
  }

  .hero-content {
    padding: 2rem 1rem 6rem;
  }

  .hero-name {
    font-size: 2.8rem;
    white-space: normal;
  }


  .badge-flutter, .badge-dart, .badge-supabase {
    display: none;
  }

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

  .project-header {
    flex-wrap: wrap;
    padding: 1.25rem;
  }

  .project-body {
    padding: 1.25rem;
  }
}

/* === SELECTION === */
::selection {
  background: hsl(240deg 95% 62% / 0.2);
  color: var(--color-primary);
}

/* === SCROLLBAR === */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--color-background-secondary); }
::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover { background: var(--color-primary); }