:root {
  --font-family: "JetBrains Mono", monospace;

  /* Neutral fallbacks (overridden by theme classes) */
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --text-primary: #c9d1d9;
  --text-secondary: #8b949e;
  --accent: #c81d25;
  --accent-rgb: 200, 29, 37;

  /* RGB counterparts for fine-grained rgba(...) usage */
  --bg-primary-rgb: 13, 17, 23;
  --bg-secondary-rgb: 22, 27, 34;
  --text-primary-rgb: 201, 209, 217;
  --text-secondary-rgb: 139, 148, 158;

  /* terminal button defaults*/
  --terminal-btn-close-rgb: 255, 95, 86;
  --terminal-btn-minimize-rgb: 255, 189, 46;
  --terminal-btn-maximize-rgb: 39, 201, 63;

  --nav-bg: rgba(255, 255, 255, 0.02);
  --nav-border: rgba(255, 255, 255, 0.04);
  --bg-gradient: none;
  --hero-glow-opacity: 0.08;
  --terminal-bg: rgba(10, 10, 12, 0.6);
  --terminal-header-bg: linear-gradient(
    180deg,
    rgba(0, 0, 0, 0.24),
    rgba(0, 0, 0, 0.1)
  );
  --terminal-border: rgba(255, 255, 255, 0.12);
}

/* Dark theme (default) */
.theme-dark {
  --bg-primary: #0b0d0f;
  --bg-secondary: #0f1113;
  --text-primary: #f7f7f7;
  --text-secondary: #bdb0b0;
  --accent: #c81d25;
  --accent-rgb: 200, 29, 37;
  --bg-primary-rgb: 11, 13, 15;
  --bg-secondary-rgb: 15, 17, 19;
  --text-primary-rgb: 247, 247, 247;
  --text-secondary-rgb: 189, 176, 176;
  --terminal-btn-close-rgb: 255, 95, 86;
  --terminal-btn-minimize-rgb: 255, 189, 46;
  --terminal-btn-maximize-rgb: 39, 201, 63;
  --nav-bg: rgba(255, 255, 255, 0.02);
  --nav-border: rgba(255, 255, 255, 0.04);
  --bg-gradient:
    radial-gradient(
      1200px circle at 10% 10%,
      rgba(var(--accent-rgb), 0.06),
      transparent 6%
    ),
    radial-gradient(
      800px circle at 90% 80%,
      rgba(var(--accent-rgb), 0.04),
      transparent 12%
    );
  --hero-glow-opacity: 0.1;
  --terminal-bg: rgba(10, 10, 12, 0.58);
  --terminal-header-bg: linear-gradient(
    180deg,
    rgba(0, 0, 0, 0.28),
    rgba(0, 0, 0, 0.12)
  );
  --terminal-border: rgba(var(--accent-rgb), 0.2);
}

/* Light theme */
.theme-light {
  --bg-primary: #ffffff;
  --bg-secondary: #fbf7f7;
  --text-primary: #1a1a1a;
  --text-secondary: #0e0d0d;
  --accent: #000000;
  --accent-rgb: 179, 15, 16;
  --bg-primary-rgb: 255, 255, 255;
  --bg-secondary-rgb: 251, 247, 247;
  --text-primary-rgb: 26, 26, 26;
  --text-secondary-rgb: 139, 69, 69;
  --terminal-btn-close-rgb: 179, 15, 16;
  --terminal-btn-minimize-rgb: 255, 189, 46;
  --terminal-btn-maximize-rgb: 39, 201, 63;
  --nav-bg: rgba(255, 255, 255, 0.7);
  --nav-border: rgba(179, 15, 16, 0.12);
  --bg-gradient:
    radial-gradient(
      1000px circle at 10% 10%,
      rgba(var(--accent-rgb), 0.03),
      transparent 8%
    ),
    radial-gradient(
      600px circle at 85% 85%,
      rgba(var(--accent-rgb), 0.02),
      transparent 12%
    );
  --hero-glow-opacity: 0.06;
  --terminal-bg: linear-gradient(
    180deg,
    rgba(var(--bg-primary-rgb), 0.58),
    rgba(var(--bg-secondary-rgb), 0.48)
  );
  --terminal-header-bg: linear-gradient(
    180deg,
    rgba(var(--bg-primary-rgb), 0.78),
    rgba(var(--bg-primary-rgb), 0.62)
  );
  --terminal-border: rgba(var(--accent-rgb), 0.14);
  --muted-rgb: 107, 75, 75;
  --muted-2-rgb: 138, 90, 90;
  --muted: rgba(var(--muted-rgb), 1);
  --muted-2: rgba(var(--muted-2-rgb), 1);
}

/* Light theme text enhancements */
.theme-light {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* Light theme: nav-link styling enhancement */
.theme-light .nav-link {
  font-weight: 500;
  letter-spacing: 0.5px;
}

.theme-light .nav-link:hover {
  font-weight: 600;
}

/* Light theme: heading and primary text enhancements */
.theme-light h1,
.theme-light h2,
.theme-light h3,
.theme-light h4,
.theme-light h5,
.theme-light h6 {
  font-weight: 700;
  letter-spacing: 0.3px;
}

.theme-light body,
.theme-light p {
  letter-spacing: 0.4px;
  line-height: 1.6;
}

/* Light theme: secondary text enhancement */
.theme-light .text-accent,
.theme-light .accent {
  font-weight: 600;
}

/* Smoothly transition between themeable surfaces */
:root,
body,
.card,
.centered-nav,
.menu-link,
.nav-link {
  transition:
    background-color 220ms ease,
    color 220ms ease,
    border-color 220ms ease,
    box-shadow 220ms ease;
}

* {
  font-family: var(--font-family);
  box-sizing: border-box;
}

::-webkit-scrollbar {
  width: 4px;
}
::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}
::-webkit-scrollbar-thumb {
  background: var(--accent);
  border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
  position: relative;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

.name-logo {
  position: relative;
  transition: all 0.3s ease;
}

.name-logo:hover {
  animation: glitch 0.3s;
}

/* Hero section background decorations */
.hero-bg {
  position: relative;
  overflow: hidden;
}

.hero-bg::before {
  content: "";
  position: absolute;
  width: 40vw;
  height: 40vw;
  background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
  opacity: var(--hero-glow-opacity);
  top: -20vw;
  right: -20vw;
  border-radius: 50%;
  animation: float 15s ease-in-out infinite;
}

.hero-bg::after {
  content: "";
  position: absolute;
  width: 30vw;
  height: 30vw;
  background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
  opacity: calc(var(--hero-glow-opacity) * 0.85);
  bottom: -15vw;
  left: -15vw;
  border-radius: 50%;
  animation: float 20s ease-in-out infinite reverse;
}

@keyframes float {
  0% {
    transform: translate(0, 0) rotate(0deg);
  }
  50% {
    transform: translate(30px, 30px) rotate(180deg);
  }
  100% {
    transform: translate(0, 0) rotate(360deg);
  }
}


.nav-link {
  color: var(--text-secondary);
  transition: all 0.3s ease;
  position: relative;
}

.nav-link::after {
  content: "";
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 0;
  background: var(--accent);
  transition: width 0.3s ease;
}

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

.nav-link:hover {
  color: var(--accent);
  transform: translateY(-1px);
}

.card {
  --mouse-x: -999px;
  --mouse-y: -999px;
  --glow-opacity: 1;
  position: relative;
  overflow: hidden;
  width: 100%;
  background: rgba(var(--bg-secondary-rgb), 0.4);
  border: 1px solid rgba(var(--accent-rgb), 0.08);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.12),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
  transition:
    transform 0.25s ease,
    border-color 0.25s ease,
    box-shadow 0.25s ease,
    background-color 0.25s ease;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(
    600px circle at var(--mouse-x) var(--mouse-y),
    rgba(var(--accent-rgb), 1),
    transparent 45%
  );
  opacity: var(--glow-opacity);
  transition: opacity 0.3s ease;
  pointer-events: none;
  padding: 2px;
  -webkit-mask:
    linear-gradient(#fff 0 0) content-box,
    linear-gradient(#fff 0 0);
  mask:
    linear-gradient(#fff 0 0) content-box,
    linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  z-index: 1;
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(var(--accent-rgb), 0.22);
  box-shadow:
    0 14px 38px rgba(0, 0, 0, 0.18),
    inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

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

.meta-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.meta-chip {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 0.2rem 0.55rem;
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  text-transform: lowercase;
  color: rgba(var(--text-secondary-rgb), 0.92);
  border: 1px solid rgba(var(--accent-rgb), 0.18);
  background: rgba(var(--bg-primary-rgb), 0.24);
}

.card-static {
  cursor: default;
}

@media (max-width: 768px) {
  .card:hover {
    transform: translateY(-2px);
  }
}

/* Light theme glass adjustments */
.theme-light .card {
  background: rgba(var(--bg-secondary-rgb), 0.5);
  border-color: rgba(var(--accent-rgb), 0.06);
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.06),
    inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

.theme-light .card::before {
  background: radial-gradient(
    600px circle at var(--mouse-x) var(--mouse-y),
    rgba(var(--accent-rgb), 1),
    transparent 45%
  );
}

/* Light theme: meta-chip text enhancement */
.theme-light .meta-chip {
  font-weight: 500;
  letter-spacing: 0.3px;
}

/* Light theme: terminal text styling */
.theme-light .terminal-text,
.theme-light .terminal-window {
  font-weight: 500;
}

.theme-light .terminal-status-item {
  font-weight: 500;
  letter-spacing: 0.2px;
}

.gradient-text {
  background: linear-gradient(
    45deg,
    var(--accent),
    rgba(var(--accent-rgb), 0.8)
  );
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: gradient 8s ease infinite;
  background-size: 200% 200%;
}

@keyframes gradient {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

.terminal-text {
  font-family: "Share Tech Mono", monospace;
  color: var(--text-primary);
}

/* Terminal window*/
.terminal-window {
  background: var(--terminal-bg);
  border: 1px solid var(--terminal-border);
  border-radius: 12px;
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  box-shadow:
    0 8px 30px rgba(2, 6, 23, 0.45),
    inset 0 1px 0 rgba(255, 255, 255, 0.22);
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
  overflow: hidden;
  transition:
    transform 220ms ease,
    box-shadow 220ms ease,
    background-color 220ms ease;
  position: relative;
}

.terminal-window::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    rgba(255, 255, 255, 0.03) 0px,
    rgba(255, 255, 255, 0.03) 1px,
    transparent 1px,
    transparent 4px
  );
  opacity: 0.16;
}

.terminal-window:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 18px rgba(2, 6, 23, 0.3);
}

.terminal-header {
  background: var(--terminal-header-bg);
  padding: 16px 24px;
  border-bottom: 1px solid var(--terminal-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--accent);
}

.terminal-status {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  align-items: center;
  padding: 0.45rem 1rem;
  border-top: 1px solid rgba(var(--accent-rgb), 0.08);
  border-bottom: 1px solid rgba(var(--accent-rgb), 0.08);
  background: rgba(var(--bg-primary-rgb), 0.22);
  position: relative;
  z-index: 1;
}

.terminal-status-item {
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  text-transform: lowercase;
  color: rgba(var(--text-secondary-rgb), 0.95);
}

.terminal-status-item strong {
  color: var(--accent);
  font-weight: 700;
}

.typed-cursor {
  color: var(--accent);
  text-shadow: 0 0 8px rgba(var(--accent-rgb), 0.65);
}

.theme-dark .terminal-window {
  box-shadow:
    0 8px 18px rgba(2, 6, 23, 0.45),
    0 2px 6px rgba(var(--accent-rgb), 0.03);
}

.terminal-buttons .terminal-button {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  display: inline-block;
}

.text-accent {
  color: var(--accent);
}

.theme-light .bg-gray-800 {
  background-color: var(--bg-secondary) !important;
}
.theme-light .text-gray-200 {
  color: var(--text-primary) !important;
}
.theme-light .text-gray-300 {
  color: var(--text-secondary) !important;
}
.theme-light .text-gray-400 {
  color: var(--text-secondary) !important;
}
.theme-light .text-gray-500 {
  color: rgba(var(--text-secondary-rgb), 0.9) !important;
}
.theme-light .shadow-lg {
  box-shadow: 0 8px 24px rgba(var(--accent-rgb), 0.04) !important;
}

.view-all-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 0.9rem;
  border-radius: 10px;
  background: linear-gradient(
    90deg,
    rgba(var(--accent-rgb), 0.1),
    rgba(var(--accent-rgb), 0.04)
  );
  color: var(--accent);
  border: 1px solid rgba(var(--accent-rgb), 0.14);
  font-weight: 700;
  text-decoration: none;
  transition:
    transform 160ms ease,
    box-shadow 160ms ease,
    background-color 160ms ease;
}
.view-all-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(var(--accent-rgb), 0.06);
}

.social-link {
  color: var(--text-secondary);
  transition: all 0.3s ease;
  position: relative;
}

.social-link:hover {
  color: var(--accent);
  transform: translateY(-3px) scale(1.1);
}

.social-link::before {
  content: "";
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0;
  transform: scale(0);
  transition: all 0.3s ease;
}

.social-link:hover::before {
  transform: scale(1.5);
  opacity: 0.1;
}

.centered-nav {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 60;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 8px 14px;
  border-radius: 12px;
  background: var(--nav-bg);
  border: 1px solid var(--nav-border);
  backdrop-filter: blur(10px) saturate(120%);
  -webkit-backdrop-filter: blur(10px) saturate(120%);
  box-shadow: 0 8px 30px rgba(2, 6, 23, 0.45);
}

.centered-nav:hover {
  transform: translateX(-50%) translateY(-2px);
  box-shadow: 0 12px 34px rgba(2, 6, 23, 0.55);
}

.nav-links-container {
  display: flex;
  gap: 0.85rem;
  align-items: center;
}
.nav-link {
  padding: 6px 10px;
  border-radius: 8px;
  text-transform: lowercase;
  font-weight: 600;
  color: var(--text-secondary);
}
.nav-link:hover {
  background: rgba(var(--accent-rgb), 0.06);
  color: var(--accent);
}
.nav-link.active {
  color: var(--accent);
  background: rgba(var(--accent-rgb), 0.08);
  box-shadow: 0 6px 18px rgba(var(--accent-rgb), 0.06);
}

.theme-toggle {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 1.05rem;
  padding: 6px;
  cursor: pointer;
}

/* mobile-only helpers: hidden by default, enabled in small viewports */
.mobile-only {
  display: none;
}

/* Site loader styles */
.site-loader {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 9999;
  transition:
    opacity 300ms ease,
    visibility 300ms ease;
}
.site-loader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
.site-loader .loader-inner {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
}
.site-loader .loader-text {
  color: var(--text-primary);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: lowercase;
}
.spinner {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 6px solid rgba(255, 255, 255, 0.08);
  border-top-color: rgba(var(--accent-rgb), 1);
  animation: spin 1s linear infinite;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.4);
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}


.theme-light .site-loader {
  background: rgba(255, 255, 255, 0.85);
}
.theme-light .spinner {
  border-color: rgba(0, 0, 0, 0.06);
  border-top-color: rgba(var(--accent-rgb), 1);
}

/* Mobile compact controls: hide desktop links and show only home + theme toggle */
@media (max-width: 768px) {
  .nav-links-container {
    display: none;
  }
  .centered-nav {
    padding: 6px 10px;
    gap: 0.5rem;
    top: 12px;
  }
  .mobile-only {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-weight: 700;
    text-transform: lowercase;
  }
  .mobile-only:hover {
    color: var(--accent);
  }
  #theme-toggle {
    display: none;
  }
}

/* Smooth scroll behavior */
html {
  scroll-behavior: smooth;
  -webkit-tap-highlight-color: transparent;
}

/* Fade in animation for sections */
section {
  animation: fadeIn 1s ease-out;
}

/* Keep hero terminal fully glass from initial paint */
#home {
  animation: none;
}

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

/* Responsive Typography */
@media (max-width: 640px) {
  h1 {
    font-size: 2rem !important;
  }
  h2 {
    font-size: 1.75rem !important;
  }
  h3 {
    font-size: 1.25rem !important;
  }
  p {
    font-size: 0.875rem !important;
  }
}

/* Tablet Typography */
@media (min-width: 641px) and (max-width: 1024px) {
  h1 {
    font-size: 2.75rem !important;
  }
  h2 {
    font-size: 2.25rem !important;
  }
  h3 {
    font-size: 1.5rem !important;
  }
  p {
    font-size: 1rem !important;
  }
}

/* Responsive Spacing */
@media (max-width: 640px) {
  section {
    padding: 2rem 1rem !important;
  }
  .card {
    padding: 1rem !important;
    margin: 0.5rem 0 !important;
  }
  .container {
    padding: 0 1rem;
  }
}

/* Tablet Spacing */
@media (min-width: 641px) and (max-width: 1024px) {
  section {
    padding: 3rem 2rem !important;
  }
  .card {
    padding: 1.5rem !important;
  }
  .container {
    padding: 0 2rem;
  }
}

/* Responsive Images */
img {
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* Touch Device Optimizations */
@media (hover: none) {
  .card:active {
    transform: scale(0.98);
  }

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

/* Grid Adjustments */
@media (max-width: 768px) {
  .grid {
    grid-template-columns: 1fr !important;
  }
}

/* Loading State */
.loading {
  opacity: 0;
  position: relative;
  transition: opacity 0.7s ease-in;
}

.loaded {
  opacity: 1;
}

img[src$=".svg"], img.svg {
  color: inherit;
  display: inline-block;
  transition: filter 220ms ease;
}

.theme-dark img[src$=".svg"], .theme-dark img.svg {
  filter: invert(1) hue-rotate(180deg) saturate(1);
}
.theme-light img[src$=".svg"], .theme-light img.svg {
  filter: none;
}

/* Fallback: respect system preference when theme classes are not applied */
@media (prefers-color-scheme: dark) {
  img[src$=".svg"] {
    filter: invert(1) hue-rotate(180deg) saturate(1);
  }
}