/* Design Tokens */
:root {
  --color-bg: #0b0f19; /* Rich dark background */
  --color-bg-alt: #0e1424;
  --color-surface: rgba(15, 23, 42, 0.6); /* Glassmorphic surface */
  --color-surface-accent: rgba(30, 41, 59, 0.7);
  --color-text: #f8fafc;
  --color-text-muted: #94a3b8;
  --color-text-on-dark: #f8fafc;
  --color-primary: #3b82f6; /* Premium Indigo/Blue */
  --color-primary-hover: #2563eb;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-strong: rgba(255, 255, 255, 0.15);
  --color-grid-line: rgba(255, 255, 255, 0.05);
  --gradient-hero: radial-gradient(circle at 20% 30%, rgba(59, 130, 246, 0.18) 0%, transparent 50%),
                   radial-gradient(circle at 80% 70%, rgba(147, 51, 234, 0.18) 0%, transparent 50%),
                   linear-gradient(180deg, rgba(11, 15, 25, 0.2) 0%, #0b0f19 100%);
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-pill: 9999px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 10px 30px -10px rgba(0, 0, 0, 0.3), 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 20px 40px -15px rgba(0, 0, 0, 0.4), 0 0 50px rgba(59, 130, 246, 0.05);
  --color-primary-glow: rgba(59, 130, 246, 0.25);
  --color-card-bg: linear-gradient(145deg, rgba(15, 23, 42, 0.85), rgba(30, 41, 59, 0.4));
  --color-tag-bg: rgba(255, 255, 255, 0.05);
  --font-base: "Inter", system-ui, -apple-system, sans-serif;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --trans-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --trans-med: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --max-readable: 72ch;
}

@media (prefers-color-scheme: light) {
  :root {
    --color-bg: #f8fafc; /* Slate light background */
    --color-bg-alt: #f1f5f9;
    --color-surface: rgba(255, 255, 255, 0.7);
    --color-surface-accent: rgba(241, 245, 249, 0.85);
    --color-text: #0f172a;
    --color-text-muted: #475569; /* Darker slate for better readability */
    --color-primary: #1d4ed8; /* Darker blue for WCAG AA compliance (contrast > 4.5:1) */
    --color-primary-hover: #1e40af;
    --color-border: rgba(15, 23, 42, 0.08);
    --color-border-strong: rgba(15, 23, 42, 0.15);
    --color-grid-line: rgba(15, 23, 42, 0.04);
    --gradient-hero: radial-gradient(circle at 20% 30%, rgba(59, 130, 246, 0.08) 0%, transparent 50%),
                     radial-gradient(circle at 80% 70%, rgba(147, 51, 234, 0.08) 0%, transparent 50%),
                     linear-gradient(180deg, rgba(248, 250, 252, 0.2) 0%, #f8fafc 100%);
    --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
    --shadow-md: 0 10px 30px -10px rgba(15, 23, 42, 0.08), 0 1px 3px rgba(15, 23, 42, 0.03);
    --shadow-lg: 0 20px 40px -15px rgba(15, 23, 42, 0.12), 0 0 50px rgba(59, 130, 246, 0.03);
    --color-primary-glow: rgba(29, 78, 216, 0.15);
    --color-card-bg: linear-gradient(145deg, rgba(255, 255, 255, 0.85), rgba(241, 245, 249, 0.65));
    --color-tag-bg: rgba(15, 23, 42, 0.04);
  }
}

/* Explicit light override when user forces light */
body[data-theme="light"] {
  --color-bg: #f8fafc;
  --color-bg-alt: #f1f5f9;
  --color-surface: rgba(255, 255, 255, 0.7);
  --color-surface-accent: rgba(241, 245, 249, 0.85);
  --color-text: #0f172a;
  --color-text-muted: #475569; /* Darker slate for better readability */
  --color-primary: #1d4ed8; /* Darker blue for WCAG AA compliance (contrast > 4.5:1) */
  --color-primary-hover: #1e40af;
  --color-border: rgba(15, 23, 42, 0.08);
  --color-border-strong: rgba(15, 23, 42, 0.15);
  --color-grid-line: rgba(15, 23, 42, 0.04);
  --gradient-hero: radial-gradient(circle at 20% 30%, rgba(59, 130, 246, 0.08) 0%, transparent 50%),
                   radial-gradient(circle at 80% 70%, rgba(147, 51, 234, 0.08) 0%, transparent 50%),
                   linear-gradient(180deg, rgba(248, 250, 252, 0.2) 0%, #f8fafc 100%);
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 10px 30px -10px rgba(15, 23, 42, 0.08), 0 1px 3px rgba(15, 23, 42, 0.03);
  --shadow-lg: 0 20px 40px -15px rgba(15, 23, 42, 0.12), 0 0 50px rgba(59, 130, 246, 0.03);
  --color-primary-glow: rgba(29, 78, 216, 0.15);
  --color-card-bg: linear-gradient(145deg, rgba(255, 255, 255, 0.85), rgba(241, 245, 249, 0.65));
  --color-tag-bg: rgba(15, 23, 42, 0.04);
}

/* Explicit dark override */
body[data-theme="dark"] {
  --color-bg: #0b0f19;
  --color-bg-alt: #0e1424;
  --color-surface: rgba(15, 23, 42, 0.6);
  --color-surface-accent: rgba(30, 41, 59, 0.7);
  --color-text: #f8fafc;
  --color-text-muted: #94a3b8;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-strong: rgba(255, 255, 255, 0.15);
  --color-grid-line: rgba(255, 255, 255, 0.05);
  --gradient-hero: radial-gradient(circle at 20% 30%, rgba(59, 130, 246, 0.18) 0%, transparent 50%),
                   radial-gradient(circle at 80% 70%, rgba(147, 51, 234, 0.18) 0%, transparent 50%),
                   linear-gradient(180deg, rgba(11, 15, 25, 0.2) 0%, #0b0f19 100%);
  --color-primary-glow: rgba(59, 130, 246, 0.25);
  --color-card-bg: linear-gradient(145deg, rgba(15, 23, 42, 0.85), rgba(30, 41, 59, 0.4));
  --color-tag-bg: rgba(255, 255, 255, 0.05);
}

/* Base Reset & Typography */
* {
  box-sizing: border-box;
}
body,
#container {
  width: 100%;
  height: 100%;
  padding: 0;
  margin: 0;
  font-family: var(--font-base);
  line-height: 1.6;
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 16px;
  scroll-behavior: smooth;
}
body {
  -webkit-font-smoothing: antialiased;
  transition: background-color var(--trans-med), color var(--trans-med);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--color-bg);
}
::-webkit-scrollbar-thumb {
  background: rgba(148, 163, 184, 0.2);
  border-radius: var(--radius-pill);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary);
}

/* SVG Icons */
svg {
  width: 1.25rem;
  height: 1.25rem;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
  display: inline-block;
  vertical-align: middle;
  transition: transform var(--trans-fast);
}
svg[fill="currentColor"] {
  fill: currentColor;
}
svg[stroke="none"] {
  stroke: none;
}

/* Specific SVG Sizing Overrides */
.theme-toggle svg,
.btn-download svg {
  width: 22px;
  height: 22px;
}
.social-link svg {
  width: 24px;
  height: 24px;
}
.nav-item svg {
  width: 22px;
  height: 22px;
}

:focus {
  outline: none;
}
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 4px;
}
.readable {
  max-width: var(--max-readable);
  margin-inline: auto;
  font-size: 1.05rem;
  color: var(--color-text-muted);
}
.readable p {
  margin: 0 0 var(--space-4);
  line-height: 1.7;
}

/* Skip Link */
.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.skip-link:focus {
  left: 12px;
  top: 12px;
  width: auto;
  height: auto;
  padding: 10px 16px;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-sm);
  z-index: 9999;
}

/* Navigation - Floating Glass Dock */
.nav {
  position: fixed;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: translate var(--trans-med), background-color var(--trans-med), border var(--trans-med), box-shadow var(--trans-med);
}
.nav-side {
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  width: auto !important;
  height: auto !important;
  flex-direction: column !important;
  padding: 16px 8px;
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  backdrop-filter: blur(16px) saturate(180%);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
}
.nav.slide.hidden {
  translate: 150% 0;
}
.filler {
  display: none !important;
}
.track {
  display: none !important;
}

.nav-toggle {
  background: var(--color-surface);
  backdrop-filter: blur(8px);
  border: 1px solid var(--color-border);
  padding: 10px;
  border-radius: var(--radius-sm);
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  position: relative;
  z-index: 101;
}
.nav-toggle .bar {
  width: 22px;
  height: 2px;
  background: var(--color-text);
  display: block;
  transition: var(--trans-med);
}
.nav-toggle[aria-expanded="true"] .bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .bar:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] .bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Theme Toggle & Download buttons */
.theme-toggle,
.btn-download {
  background: var(--color-surface);
  backdrop-filter: blur(12px);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  border-radius: var(--radius-pill);
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: var(--trans-fast) background, var(--trans-fast) border-color, var(--trans-fast) transform;
  text-decoration: none;
}
.theme-toggle:hover,
.theme-toggle:focus,
.btn-download:hover,
.btn-download:focus {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
  transform: translateY(-2px) scale(1.05);
}

.nav-item {
  z-index: 2;
  cursor: pointer;
  border: 0;
  background: transparent;
  color: var(--color-text-muted);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--trans-fast) background, var(--trans-fast) color, var(--trans-fast) transform;
}
.nav-item .title {
  display: none !important;
}
.nav-item:hover, .nav-item:focus {
  background: var(--color-surface-accent);
  color: var(--color-primary);
  transform: scale(1.1);
}
.nav-item.active {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 0 16px var(--color-primary-glow);
}
.nav-item.active:hover {
  color: #fff;
}

/* Theme switcher standalone positioning */
.theme-switcher {
  display: flex;
  column-gap: 8px;
  position: fixed;
  top: 16px;
  left: 16px;
  z-index: 100;
}
.theme-switcher .theme-toggle {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.theme-switcher .theme-toggle:hover,
.theme-switcher .theme-toggle:focus {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

/* Theme Toggle Icons state-based CSS control */
.theme-toggle[data-mode="dark"] .icon-moon {
  display: none !important;
}
.theme-toggle[data-mode="dark"] .icon-sun {
  display: block !important;
}
.theme-toggle[data-mode="light"] .icon-moon {
  display: block !important;
}
.theme-toggle[data-mode="light"] .icon-sun {
  display: none !important;
}

/* Layout */
.tiles-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
}
.tile {
  width: 100%;
  position: relative;
  margin-bottom: 24px;
}
.tile:not(.hero) {
  width: min(1150px, 92%);
  background: var(--color-surface);
  backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 36px clamp(1.2rem, 4vw, 3rem);
  transition: border-color var(--trans-med), box-shadow var(--trans-med);
}
.tile:not(.hero):hover {
  border-color: rgba(59, 130, 246, 0.2);
  box-shadow: var(--shadow-lg);
}
.hero {
  height: 100dvh;
  background: var(--gradient-hero);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 15, 25, 0) 50%, var(--color-bg) 100%);
  z-index: 4;
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 5;
  background: rgba(11, 15, 25, 0.25);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  padding: clamp(2rem, 5vw, 3.5rem) clamp(1.5rem, 4vw, 2.5rem);
  width: min(760px, 90%) !important;
  box-shadow: var(--shadow-lg);
  margin: 0 auto;
}

/* Background Glow Mesh Orbs */
.hero-glow-orbs {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: 1;
  pointer-events: none;
}
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.14;
  transition: background var(--trans-med), opacity var(--trans-med);
}
body[data-theme="light"] .orb {
  opacity: 0.08;
  filter: blur(140px);
}
.orb-1 {
  width: min(600px, 80vw);
  height: min(600px, 80vw);
  background: var(--color-primary);
  top: -150px;
  left: -150px;
  animation: float-orb-1 25s infinite alternate ease-in-out;
}
.orb-2 {
  width: min(700px, 90vw);
  height: min(700px, 90vw);
  background: #a855f7; /* Purple */
  bottom: -200px;
  right: -150px;
  animation: float-orb-2 30s infinite alternate ease-in-out;
}

/* Technical Blueprint Grid */
.hero-grid-bg {
  position: absolute;
  inset: 0;
  background-size: 40px 40px;
  background-image: 
    linear-gradient(to right, var(--color-grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--color-grid-line) 1px, transparent 1px);
  z-index: 2;
  pointer-events: none;
}

/* Blueprint Canvas schematic overlay */
.hero-blueprint-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 3;
  pointer-events: none;
}

/* Enhanced Hero Text Shadow & Readability */
.hero .title {
  font-size: clamp(2.2rem, 7vw, 4rem);
  font-weight: 800;
  color: #fff;
  letter-spacing: -1px;
  text-shadow: 0 4px 24px rgba(0, 0, 0, 0.7), 0 0 50px rgba(59, 130, 246, 0.25);
}
.hero .subtitle {
  color: #e2e8f0;
  margin: 20px auto 28px;
  max-width: 62ch;
  line-height: 1.6;
  font-size: clamp(1.05rem, 2.5vw, 1.3rem);
  text-shadow: 0 2px 14px rgba(0, 0, 0, 0.6), 0 0 30px rgba(0, 0, 0, 0.4);
}

/* Light Theme Hero Text & Social Overrides */
@media (prefers-color-scheme: light) {
  body:not([data-theme="dark"]) .hero .title {
    color: #0f172a;
    text-shadow: 0 4px 24px rgba(255, 255, 255, 0.95), 0 0 40px rgba(59, 130, 246, 0.15);
  }
  body:not([data-theme="dark"]) .hero .subtitle {
    color: #334155;
    text-shadow: 0 2px 14px rgba(255, 255, 255, 0.95);
  }
  body:not([data-theme="dark"]) .social-link {
    color: #0f172a;
    background: rgba(15, 23, 42, 0.05);
    border-color: rgba(15, 23, 42, 0.1);
  }
  body:not([data-theme="dark"]) .social-link:hover,
  body:not([data-theme="dark"]) .social-link:focus {
    color: #fff;
    background: var(--color-primary);
    border-color: var(--color-primary);
  }
  body:not([data-theme="dark"]) .hero-content {
    background: rgba(255, 255, 255, 0.35);
    border-color: rgba(15, 23, 42, 0.06);
  }
}
body[data-theme="light"] .hero .title {
  color: #0f172a;
  text-shadow: 0 4px 24px rgba(255, 255, 255, 0.95), 0 0 40px rgba(59, 130, 246, 0.15);
}
body[data-theme="light"] .hero .subtitle {
  color: #334155;
  text-shadow: 0 2px 14px rgba(255, 255, 255, 0.95);
}
body[data-theme="light"] .social-link {
  color: #0f172a;
  background: rgba(15, 23, 42, 0.05);
  border-color: rgba(15, 23, 42, 0.1);
}
body[data-theme="light"] .social-link:hover,
body[data-theme="light"] .social-link:focus {
  color: #fff;
  background: var(--color-primary);
  border-color: var(--color-primary);
}
body[data-theme="light"] .hero-content {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(15, 23, 42, 0.06);
}

/* Floating Animations */
@keyframes float-orb-1 {
  0% {
    transform: translate(0, 0) scale(1);
  }
  50% {
    transform: translate(80px, 60px) scale(1.08);
  }
  100% {
    transform: translate(-40px, 90px) scale(0.96);
  }
}
@keyframes float-orb-2 {
  0% {
    transform: translate(0, 0) scale(1);
  }
  50% {
    transform: translate(-90px, -50px) scale(0.94);
  }
  100% {
    transform: translate(50px, -80px) scale(1.1);
  }
}

/* Pulse slide animation */
@keyframes pulse-flow {
  0% {
    stroke-dashoffset: 300;
  }
  100% {
    stroke-dashoffset: 0;
  }
}
.hero .title {
  font-size: clamp(2.2rem, 7vw, 4rem);
  font-weight: 800;
  color: #fff;
  letter-spacing: -1px;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.6);
}
.hero .subtitle {
  color: #e2e8f0;
  margin: 20px auto 28px;
  max-width: 62ch;
  line-height: 1.6;
  font-size: clamp(1.05rem, 2.5vw, 1.3rem);
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}
.hero .social-bar {
  display: flex;
  gap: 16px;
  justify-content: center;
}
.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  text-decoration: none;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: var(--shadow-sm);
  transition: transform var(--trans-fast), background var(--trans-fast), border-color var(--trans-fast), box-shadow var(--trans-fast);
}
.social-link:hover, .social-link:focus {
  transform: translateY(-4px);
  background: var(--color-primary);
  border-color: var(--color-primary);
  box-shadow: 0 8px 24px var(--color-primary-glow);
}

/* Section Titles */
.tile > .title,
.tile > h2.title {
  font-size: 1.85rem;
  font-weight: 700;
  text-decoration: none;
  position: relative;
  text-align: center;
  margin: 0 0 36px;
  letter-spacing: -0.5px;
}
.tile > .title::after,
.tile > h2.title::after {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 3px;
  background: var(--color-primary);
  border-radius: var(--radius-pill);
  box-shadow: 0 0 8px var(--color-primary-glow);
}

/* Content Grid */
.tile > .content {
  margin-top: 0.5rem;
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  width: 100%;
}

/* Timeline specific layout overrides for Education & Experience */
#education .content,
#experience .content {
  display: flex;
  flex-direction: column;
  gap: 28px;
  position: relative;
  padding-left: 32px;
  grid-template-columns: 1fr;
}
#education .content::before,
#experience .content::before {
  display: none;
}

/* Cards */
.card {
  position: relative;
  padding: 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-alt);
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: var(--trans-med) box-shadow, var(--trans-med) transform, var(--trans-med) border-color;
}
.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  border-color: var(--color-primary);
}

/* Timeline card bullets */
#education .card::before,
#experience .card::before {
  content: "";
  position: absolute;
  left: -22px;
  top: 28px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 3px solid var(--color-primary);
  box-shadow: 0 0 10px var(--color-primary-glow);
  z-index: 5;
  transition: transform var(--trans-fast), background var(--trans-fast);
}
#education .card:hover::before,
#experience .card:hover::before {
  transform: scale(1.3);
  background: var(--color-primary);
}

#education .card::after,
#experience .card::after {
  content: "";
  position: absolute;
  left: -14px; /* Centered relative to the bullet at left: -22px */
  top: 34px; /* Center of the bullet */
  height: calc(100% + 28px); /* Extend exactly to the next bullet center */
  width: 2px;
  background: var(--color-primary);
  opacity: 0.15;
  z-index: 4;
}

#education .card:last-child::after,
#experience .card:last-child::after {
  display: none;
}

.card .title {
  font-size: 1.15rem;
  margin: 0 0 2px;
  font-weight: 600;
  letter-spacing: -0.2px;
}
.card .role {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
  margin: 0 0 4px;
}
.card .score {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-text-muted);
  margin: 0 0 4px;
}
.card .timeline {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 1px;
  text-transform: uppercase;
}
.card .body {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}
.bullet-points {
  margin: 4px 0 0;
  padding-left: 20px;
  font-size: 0.88rem;
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: var(--color-text-muted);
}
.bullet-points li {
  line-height: 1.45;
}
#emotion-detection-btn {
  position: absolute;
  right: 20px;
  bottom: 20px;
}
.btn-small {
  padding: 8px 16px;
  font-size: 0.85rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: #fff;
  text-decoration: none;
  border: 1px solid var(--color-primary);
  transition: var(--trans-fast) background, var(--trans-fast) transform, var(--trans-fast) box-shadow;
}
.btn-small:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px var(--color-primary-glow);
}

.project-card {
  border-radius: var(--radius-lg);
  background: var(--color-card-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--trans-med) transform, var(--trans-med) border-color, var(--trans-med) box-shadow;
}
.project-card:before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, rgba(59, 130, 246, 0.08), transparent 60%);
  pointer-events: none;
}
.project-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
}
.project-card .header {
  padding: 0;
}
.project-card .title {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 0;
  letter-spacing: -0.3px;
}
.project-card .body {
  min-height: 48px;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 12px 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}
.project-card .body p {
  margin: 0;
}
.project-card blockquote {
  margin: 0;
  padding: 0;
  font-style: italic;
  font-size: 0.95rem;
  color: var(--color-text);
}
.project-card .footer {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0;
}
.project-card a.tag {
  font-size: 0.78rem;
  text-decoration: none;
  background: var(--color-primary);
  color: #fff;
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  font-weight: 500;
  letter-spacing: 0.3px;
  transition: var(--trans-fast) background, var(--trans-fast) transform;
}
.project-card a.tag:hover,
.project-card a.tag:focus {
  background: var(--color-primary-hover);
  color: #fff !important;
  transform: translateY(-2px);
}
.tech-list {
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tech-list li {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--color-text-muted);
  background: var(--color-tag-bg);
  border: 1px solid var(--color-border);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

/* Emotion Tabs */
.emotion-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.tab {
  font-size: 1.05rem;
  background: var(--color-tag-bg);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  transition: 0.25s background, 0.25s transform, 0.25s border-color;
}
.tab[aria-selected="true"],
.tab.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  font-size: 1.1rem;
  box-shadow: 0 4px 12px var(--color-primary-glow);
}
.tab:hover,
.tab:focus {
  background: rgba(59, 130, 246, 0.15);
}
.tab .emonji {
  font-size: 1.2em;
}


/* Skills */
.flex-row {
  display: flex !important;
  flex-direction: row !important;
  justify-content: center;
  flex-flow: wrap;
  gap: 16px;
}
.skill {
  --h: 8px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px;
  transition: transform var(--trans-med), box-shadow var(--trans-med), border-color var(--trans-med);
  min-width: 150px;
  flex: 1 1 150px;
  max-width: 200px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}
.skill:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}
.skill-name {
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--color-text);
}
.skill-bar {
  width: 100%;
  height: var(--h);
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-pill);
  overflow: hidden;
  position: relative;
}
body[data-theme="light"] .skill-bar {
  background: rgba(15, 23, 42, 0.08);
}
.skill-fill {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--color-primary) 0%, #a855f7 100%);
  border-radius: inherit;
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 0 8px var(--color-primary-glow);
}
.skill-score {
  font-size: 0.72rem;
  font-weight: 700;
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.5px;
}
body[data-theme="dark"] .skill {
  background: rgba(10, 14, 25, 0.8);
  border-color: rgba(255, 255, 255, 0.06);
}
body[data-theme="light"] .skill {
  background: rgba(255, 255, 255, 0.85);
  border-color: rgba(15, 23, 42, 0.06);
}

/* Forms - removed contact form styles since section is removed */

/* Buttons */
.btn {
  padding: 10px 20px;
  background: var(--color-surface);
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  margin: 10px;
  cursor: pointer;
  font: inherit;
  font-size: 0.85rem;
  letter-spacing: 0.5px;
  font-weight: 500;
  transition:
    var(--trans-fast) background,
    var(--trans-fast) transform;
}
.btn:hover,
.btn:focus {
  background: var(--color-bg-alt);
}
.btn:active {
  transform: translateY(1px);
}
.btn-primary {
  color: #fff;
  background: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-primary:hover,
.btn-primary:focus {
  background: var(--color-primary-hover);
}
.btn-secondary {
  background: var(--color-bg-alt);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn-secondary:hover,
.btn-secondary:focus {
  background: var(--color-primary);
  color: #fff;
}
.btn.medium {
  font-size: 0.9rem;
  padding: 12px 28px;
}

/* Links */
.link-group {
  width: max-content;
  margin: 15px auto 25px;
  display: flex;
  gap: 16px;
}
.link-tab {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-surface-accent);
  color: #fff;
  text-decoration: none;
  position: relative;
  transition:
    var(--trans-fast) background,
    var(--trans-fast) transform;
}
.link-tab:hover,
.link-tab:focus {
  background: var(--color-primary);
  transform: translateY(-3px);
}

/* Footer */
.site-footer {
  text-align: center;
  font-size: 0.65rem;
  opacity: 0.7;
  padding: 50px 0 25px;
}

/* Utilities */
.centered {
  text-align: center;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
}
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 0.8s ease,
    transform 0.8s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

/* Fullscreen loader */
#site-loader {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  z-index: 9999;
  transition:
    opacity 0.5s ease,
    visibility 0.5s ease;
}
#site-loader[aria-hidden="true"] {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
#site-loader .loader-inner {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
}
#site-loader .loader-image {
  width: 56vw;
  max-width: 520px;
  height: auto;
  border-radius: 12px;
  object-fit: cover;
  box-shadow: var(--shadow-lg);
  display: block;
}
#site-loader .loader-spinner {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 4px solid rgba(255, 255, 255, 0.12);
  border-top-color: var(--color-primary);
  animation: spin 1s linear infinite;
  box-shadow: var(--shadow-sm);
  background: transparent;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Make loader less intrusive on small screens */
@media (max-width: 600px) {
  #site-loader .loader-image {
    width: 85vw;
    border-radius: 8px;
  }
  #site-loader .loader-spinner {
    width: 36px;
    height: 36px;
  }
}

/* Print */
@media print {
  .nav,
  .nav-toggle,
  .theme-toggle,
  .link-group,
  .emotion-tabs,
  .track,
  .filler {
    display: none !important;
  }
  body,
  .tile,
  .tile:not(.hero) {
    background: #fff !important;
    box-shadow: none !important;
    color: #000 !important;
  }
  .hero {
    height: auto;
    background: none;
  }
  .hero-overlay {
    display: none;
  }
  .project-card {
    background: #fff !important;
    color: #000 !important;
  }
}

/* Responsive */
@media (max-width: 760px) {
  .nav {
    justify-content: space-between;
  }
  .nav-side {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: unset;
    transform: none;
    width: 100% !important;
    height: auto !important;
    flex-direction: row !important;
    flex-wrap: wrap;
    padding: 12px 16px;
    border-radius: 0;
    border-top: 0;
    border-left: 0;
    border-right: 0;
    background: var(--color-surface);
    backdrop-filter: blur(16px);
    z-index: 99;
  }
  .nav.slide.hidden {
    translate: 0 -100%;
  }
  .nav-side > .filler {
    display: none !important;
  }
  .theme-switcher {
    left: unset;
    right: 16px;
    top: 16px;
  }
  /* hide all nav-items when closed except active for context */
  .nav-side:not(.open) .nav-item {
    display: none;
  }
  .nav-side:not(.open) .nav-item.active {
    display: flex;
    opacity: 1;
    pointer-events: auto;
    transform: none;
  }
  .nav-side.open .nav-item {
    display: flex;
    opacity: 1;
    pointer-events: auto;
    transform: none;
    transition: var(--trans-fast);
    margin-top: 8px;
  }
  /* ensure toggles always visible */
  .nav-toggle,
  .theme-toggle {
    position: relative;
    z-index: 4;
  }
  .hero {
    height: 80dvh;
  }
}
@media (max-width: 800px) {
  .tile > .content {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  }
}

.projects-collapsed .project-extra {
  display: none;
}
.projects-expanded .project-extra {
  display: flex;
}
.projects-controls {
  text-align: center;
  margin-top: 10px;
}

#loop-text::after {
  font-weight: 200;
  content: "|";
}
#loop-text.animate::after {
  animation: blinking-cursor infinite 2s;
}
@keyframes blinking-cursor {
  0% {
    color: transparent;
  }
  100% {
    color: white;
  }
}

/* Certifications collapsible similar to projects */
.certs-collapsed .cert-extra {
  display: none;
}
.certs-expanded .cert-extra {
  display: flex;
}
.certs-controls {
  text-align: center;
  margin-top: 10px;
}

/* Skill badges list */
.skill-badges {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0;
  margin: 14px auto 0;
  justify-content: center;
}
.skill-badges li {
  font-size: 0.72rem;
  background: var(--color-bg-alt);
  color: inherit;
  border: 1px solid var(--color-border);
  padding: 6px 10px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.4px;
}
body[data-theme="dark"] .skill-badges li {
  background: var(--color-surface);
}



/* Small secondary view button style already exists as .btn-small; ensure visual contrast */
.btn-small {
  border: 1px solid var(--color-border);
  background: var(--color-bg-alt);
  color: var(--color-text);
}

/* Make the CTA responsive */
@media (max-width: 600px) {
  .download-resume {
    flex-direction: column;
    gap: 8px;
  }
}

/* Hide download buttons in print and provide a link note */
@media print {
  .download-resume {
    display: none !important;
  }
  .site-footer:after {
    content: "Resume available at: resume.pdf";
    display: block;
    margin-top: 8px;
    font-size: 0.75rem;
  }
}

/* Hero CTA tweaks */
.hero-cta {
  margin-top: 20px;
}
.hero-cta .btn-download {
  padding: 12px 20px;
  font-size: 1rem;
  border-radius: var(--radius-pill);
  box-shadow: 0 6px 20px rgba(0, 140, 255, 0.18);
}
.hero-cta .btn-small {
  padding: 10px 14px;
}
.hero .btn-download {
  background: #fff;
  color: var(--color-surface-accent);
  border: 0;
}
.hero .btn-download:hover,
.hero .btn-download:focus {
  background: var(--color-primary);
  color: #fff;
}
.hero .btn-small {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.18);
}

@media (max-width: 600px) {
  .hero-cta {
    flex-direction: column;
    gap: 10px;
  }
  .hero-cta .btn-download {
    width: 90%;
  }
}

/* Accessibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}