:root {
  /* Rose Pine Color Tokens */

  /* Base Colors - Dark Theme (Rose Pine) */
  --rp-base: #191724;
  --rp-surface: #1f1d2e;
  --rp-overlay: #26233a;
  --rp-muted: #6e6a86;
  --rp-subtle: #908caa;
  --rp-text: #e0def4;
  --rp-love: #eb6f92;
  --rp-gold: #f6c177;
  --rp-rose: #ebbcba;
  --rp-pine: #31748f;
  --rp-foam: #9ccfd8;
  --rp-iris: #c4a7e7;

  /* Light Theme Colors (Rose Pine Dawn) */
  --rp-light-base: #faf4ed;
  --rp-light-surface: #fffaf3;
  --rp-light-overlay: #f2e9e1;
  --rp-light-muted: #9893a5;
  --rp-light-subtle: #797593;
  --rp-light-text: #575279;
  --rp-light-love: #b4637a;
  --rp-light-gold: #ea9d34;
  --rp-light-rose: #d7827e;
  --rp-light-pine: #286983;
  --rp-light-foam: #56949f;
  --rp-light-iris: #907aa9;

  /* UI */
  --border-subtle: rgba(255, 255, 255, 0.1);
  --border-moderate: rgba(255, 255, 255, 0.2);
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1),
    0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1),
    0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1),
    0 10px 10px -5px rgba(0, 0, 0, 0.04);

  /* Type scale */
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;

  /* Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;

  /* Transitions */
  --transition-superfast: 80ms ease-in-out;
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;

  /* Layout */
  --max-width: 1280px;
  --card-gap: var(--space-8);
  --num-projects: 8;
  --header-height: 64px;
}

/* Dark Mode (Default) */
:root {
  color-scheme: dark;

  /* Palette */
  --primary-dark: var(--rp-base);
  --primary-light: var(--rp-surface);
  --surface-dark: var(--rp-surface);
  --surface-light: var(--rp-overlay);
  --surface-elevated: var(--rp-overlay);

  /* Accents */
  --accent-primary: var(--rp-iris);
  --accent-secondary: var(--rp-love);
  --accent-success: var(--rp-pine);
  --accent-warning: var(--rp-gold);
  --accent-danger: var(--rp-love);

  /* Text */
  --text-primary: var(--rp-text);
  --text-secondary: var(--rp-subtle);
  --text-muted: var(--rp-muted);
  --text-inverse: var(--rp-base);

  /* UI */
  --border-subtle: rgba(224, 222, 244, 0.1);
  --border-moderate: rgba(224, 222, 244, 0.2);

  /* Shadows with Rose Pine base colors */
  --shadow-sm: 0 1px 2px 0 rgba(25, 23, 36, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(25, 23, 36, 0.4),
    0 2px 4px -1px rgba(25, 23, 36, 0.2);
  --shadow-lg: 0 10px 15px -3px rgba(25, 23, 36, 0.4),
    0 4px 6px -2px rgba(25, 23, 36, 0.2);
  --shadow-xl: 0 20px 25px -5px rgba(25, 23, 36, 0.5),
    0 10px 10px -5px rgba(25, 23, 36, 0.3);

  /* Gradients */
  --gradient-primary: linear-gradient(
    135deg,
    var(--primary-dark) 0%,
    var(--surface-dark) 100%
  );
  --gradient-accent: linear-gradient(
    135deg,
    var(--accent-primary) 0%,
    var(--accent-secondary) 100%
  );
  --gradient-card: linear-gradient(
    135deg,
    rgba(224, 222, 244, 0.1) 0%,
    rgba(224, 222, 244, 0.05) 100%
  );

  /* Rose Pine specific gradients */
  --gradient-rose: linear-gradient(
    135deg,
    var(--rp-rose) 0%,
    var(--rp-love) 100%
  );
  --gradient-nature: linear-gradient(
    135deg,
    var(--rp-pine) 0%,
    var(--rp-foam) 100%
  );
  --gradient-warm: linear-gradient(
    135deg,
    var(--rp-gold) 0%,
    var(--rp-rose) 100%
  );
}

/* Light Mode */
@media (prefers-color-scheme: light) {
  :root {
    color-scheme: light;

    /* Palette */
    --primary-dark: var(--rp-light-base);
    --primary-light: var(--rp-light-surface);
    --surface-dark: var(--rp-light-surface);
    --surface-light: var(--rp-light-overlay);
    --surface-elevated: var(--rp-light-overlay);

    /* Accents */
    --accent-primary: var(--rp-light-iris);
    --accent-secondary: var(--rp-light-love);
    --accent-success: var(--rp-light-pine);
    --accent-warning: var(--rp-light-gold);
    --accent-danger: var(--rp-light-love);

    /* Text */
    --text-primary: var(--rp-light-text);
    --text-secondary: var(--rp-light-subtle);
    --text-muted: var(--rp-light-muted);
    --text-inverse: var(--rp-light-base);

    /* UI */
    --border-subtle: rgba(87, 82, 121, 0.15);
    --border-moderate: rgba(87, 82, 121, 0.25);

    /* Shadows with light theme colors */
    --shadow-sm: 0 1px 2px 0 rgba(87, 82, 121, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(87, 82, 121, 0.15),
      0 2px 4px -1px rgba(87, 82, 121, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(87, 82, 121, 0.15),
      0 4px 6px -2px rgba(87, 82, 121, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(87, 82, 121, 0.2),
      0 10px 10px -5px rgba(87, 82, 121, 0.1);

    /* Gradients for light mode */
    --gradient-card: linear-gradient(
      135deg,
      rgba(87, 82, 121, 0.08) 0%,
      rgba(87, 82, 121, 0.04) 100%
    );

    /* Rose Pine Dawn specific gradients */
    --gradient-rose: linear-gradient(
      135deg,
      var(--rp-light-rose) 0%,
      var(--rp-light-love) 100%
    );
    --gradient-nature: linear-gradient(
      135deg,
      var(--rp-light-pine) 0%,
      var(--rp-light-foam) 100%
    );
    --gradient-warm: linear-gradient(
      135deg,
      var(--rp-light-gold) 0%,
      var(--rp-light-rose) 100%
    );
  }
}

/* Force Dark Mode Class */
.dark-mode {
  color-scheme: dark;

  /* Palette */
  --primary-dark: var(--rp-base);
  --primary-light: var(--rp-surface);
  --surface-dark: var(--rp-surface);
  --surface-light: var(--rp-overlay);
  --surface-elevated: var(--rp-overlay);

  /* Accents */
  --accent-primary: var(--rp-iris);
  --accent-secondary: var(--rp-love);
  --accent-success: var(--rp-pine);
  --accent-warning: var(--rp-gold);
  --accent-danger: var(--rp-love);

  /* Text */
  --text-primary: var(--rp-text);
  --text-secondary: var(--rp-subtle);
  --text-muted: var(--rp-muted);
  --text-inverse: var(--rp-base);

  /* UI */
  --border-subtle: rgba(224, 222, 244, 0.1);
  --border-moderate: rgba(224, 222, 244, 0.2);

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(25, 23, 36, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(25, 23, 36, 0.4),
    0 2px 4px -1px rgba(25, 23, 36, 0.2);
  --shadow-lg: 0 10px 15px -3px rgba(25, 23, 36, 0.4),
    0 4px 6px -2px rgba(25, 23, 36, 0.2);
  --shadow-xl: 0 20px 25px -5px rgba(25, 23, 36, 0.5),
    0 10px 10px -5px rgba(25, 23, 36, 0.3);

  /* Gradients */
  --gradient-card: linear-gradient(
    135deg,
    rgba(224, 222, 244, 0.1) 0%,
    rgba(224, 222, 244, 0.05) 100%
  );

  --glass-background: linear-gradient(
    135deg,
    var(--rp-base) 10%,
    var(--rp-surface) 20%
  );
}

/* Force Light Mode Class */
.light-mode {
  color-scheme: light;

  /* Palette */
  --primary-dark: var(--rp-light-base);
  --primary-light: var(--rp-light-surface);
  --surface-dark: var(--rp-light-surface);
  --surface-light: var(--rp-light-overlay);
  --surface-elevated: var(--rp-light-overlay);

  /* Accents */
  --accent-primary: var(--rp-light-iris);
  --accent-secondary: var(--rp-light-love);
  --accent-success: var(--rp-light-pine);
  --accent-warning: var(--rp-light-gold);
  --accent-danger: var(--rp-light-love);

  /* Text */
  --text-primary: var(--rp-light-text);
  --text-secondary: var(--rp-light-subtle);
  --text-muted: var(--rp-light-muted);
  --text-inverse: var(--rp-light-base);

  /* UI */
  --border-subtle: rgba(87, 82, 121, 0.15);
  --border-moderate: rgba(87, 82, 121, 0.25);

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(87, 82, 121, 0.1);
  --shadow-md: 0 4px 6px -1px rgba(87, 82, 121, 0.15),
    0 2px 4px -1px rgba(87, 82, 121, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(87, 82, 121, 0.15),
    0 4px 6px -2px rgba(87, 82, 121, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(87, 82, 121, 0.2),
    0 10px 10px -5px rgba(87, 82, 121, 0.1);

  /* Gradients */
  --gradient-card: linear-gradient(
    135deg,
    rgba(87, 82, 121, 0.08) 0%,
    rgba(87, 82, 121, 0.04) 100%
  );
  --glass-background: linear-gradient(
    135deg,
    var(--rp-light-base) 10%,
    var(--rp-light-surface) 20%
  );
}

/* Additional Rose Pine utility classes */
.rose-pine-accent {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.rose-pine-warm {
  background: var(--gradient-warm);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.rose-pine-nature {
  background: var(--gradient-nature);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Button variants using Rose Pine colors */
.btn-love {
  background: var(--rp-love);
  color: var(--rp-base);
}

.btn-love:hover {
  background: var(--rp-rose);
}

.btn-pine {
  background: var(--rp-pine);
  color: var(--rp-text);
}

.btn-pine:hover {
  background: var(--rp-foam);
}

.btn-iris {
  background: var(--rp-iris);
  color: var(--rp-base);
}

.btn-iris:hover {
  background: color-mix(in srgb, var(--rp-iris) 80%, white 20%);
}

/* Navbar Actions Container */
/* .navbar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
} */

/* Desktop Theme Toggle */
.theme-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-normal);
  font-size: var(--font-size-sm);
  font-weight: 500;
  position: relative;
  overflow: hidden;
}

.theme-toggle::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-accent);
  opacity: 0;
  transition: opacity var(--transition-normal);
  border-radius: inherit;
  z-index: -1;
}

.theme-toggle:hover::before {
  opacity: 1;
}

.theme-toggle:hover {
  color: var(--text-primary);
  border-color: var(--border-moderate);
  transform: translateY(-1px);
}

.theme-toggle .theme-icon,
.theme-toggle .theme-text {
  position: relative;
  z-index: 1;
  transition: transform var(--transition-fast);
}

.theme-toggle:hover .theme-icon {
  transform: scale(1.1);
}

.theme-icon {
  font-size: 16px;
  line-height: 1;
}

.theme-text {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Mobile Theme Toggle Section */
.mobile-theme-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: var(--space-4);
}

.mobile-theme-label {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.mobile-theme-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition-normal);
  font-size: var(--font-size-sm);
  font-weight: 500;
  min-width: 80px;
  justify-content: center;
}

.mobile-theme-toggle:hover {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  transform: translateY(-1px);
}

/* Theme states */
.theme-toggle {
  padding: var(--space-2);
  /* border-radius: 50%; */
  width: 40px;
  height: 40px;
  justify-content: center;
}

.theme-toggle[data-theme="light"] .theme-icon,
.mobile-theme-toggle[data-theme="light"] .theme-icon {
  filter: brightness(1.2);
}

.theme-toggle[data-theme="dark"] .theme-icon,
.mobile-theme-toggle[data-theme="dark"] .theme-icon {
  filter: contrast(1.2);
}

.theme-toggle[data-theme="system"] .theme-icon,
.mobile-theme-toggle[data-theme="system"] .theme-icon {
  animation: gentle-pulse 2s ease-in-out infinite;
}

@keyframes gentle-pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

/* Enhanced Focus States */
.theme-toggle:focus-visible,
.mobile-theme-toggle:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

/* Mobile Layout Adjustments */
@media (max-width: 767px) {
  .navbar-actions {
    gap: var(--space-3);
  }

  /* .theme-toggle {
    padding: var(--space-2);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    justify-content: center;
  } */

  .theme-toggle .theme-text {
    display: none;
  }

  .mobile-theme-section {
    order: -1; /* Show at top of mobile menu */
  }
}

/* Responsive hide classes */
@media (min-width: 768px) {
  .mobile-theme-section {
    display: none;
  }
}

/* Animation for theme transitions */
* {
  transition: background-color var(--transition-normal),
    border-color var(--transition-normal), color var(--transition-fast);
}

/* Smooth theme transition for entire page */
html.theme-transitioning,
html.theme-transitioning *,
html.theme-transitioning *:before,
html.theme-transitioning *:after {
  transition: all var(--transition-slow) !important;
  transition-delay: 0 !important;
}

/* Icon variants for different themes */
.theme-system {
  content: "🌓";
}
.theme-light {
  content: "☀️";
}
.theme-dark {
  content: "🌙";
}

/* Alternative text-based icons if emoji aren't preferred */
.theme-toggle.text-icons .theme-icon::before {
  font-family: monospace;
  font-size: 14px;
}

.theme-toggle.text-icons[data-theme="system"] .theme-icon::before {
  content: "AUTO";
}

.theme-toggle.text-icons[data-theme="light"] .theme-icon::before {
  content: "LIGHT";
}

.theme-toggle.text-icons[data-theme="dark"] .theme-icon::before {
  content: "DARK";
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--primary-dark);
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Animated background */
body::before {
  content: "";
  position: fixed;
  inset: -50%;
  width: 200%;
  height: 200%;
  z-index: -2;
  opacity: 0.6;
  background: radial-gradient(
      circle at 20% 80%,
      rgba(59, 130, 246, 0.15) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 80% 20%,
      rgba(139, 92, 246, 0.15) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 40% 40%,
      rgba(16, 185, 129, 0.1) 0%,
      transparent 50%
    );
  animation: float 20s ease-in-out infinite;
}

@keyframes float {
  0%,
  100% {
    transform: translate(0, 0) rotate(0);
  }
  33% {
    transform: translate(30px, -30px) rotate(10deg);
  }
  66% {
    transform: translate(-20px, 20px) rotate(30deg);
  }
}

/* Enhanced Navbar Styles */
header {
  background: var(--gradient-primary);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-subtle);
  position: sticky;
  top: 0;
  z-index: 100;
  padding: var(--space-4) 0;
}

.navbar {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
}

/* Enhanced Brand Section */
.navbar-brand-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.navbar-brand {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  margin: 0;
  line-height: 1;
}

.brand-first {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.brand-tagline {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  z-index: 300;
  touch-action: manipulation;
}

.mobile-menu-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
}

.hamburger-line {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-normal);
  transform-origin: center;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* Navigation Menu */
.navbar-menu {
  display: flex;
  gap: var(--space-6);
  /* align-items: center; */
}

.navbar-nav {
  display: flex;
  list-style: none;
  gap: var(--space-1);
  margin: 0;
  padding: 0;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: var(--font-size-sm);
  transition: all var(--transition-superfast);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.nav-link::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-accent);
  opacity: 0;
  transition: opacity var(--transition-normal);
  border-radius: inherit;
}

.nav-link:hover::before,
.nav-link.is-active::before {
  opacity: 1;
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--text-inverse);
  transform: translateY(-1px);
}

.nav-link:hover .nav-icon,
.nav-link.is-active .nav-icon {
  transform: scale(1.1);
}

.nav-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
  transition: transform var(--transition-superfast);
}

.nav-text {
  position: relative;
  z-index: 1;
}

/* Special Portfolio Button */
.portfolio-trigger {
  position: relative;
}

.portfolio-indicator {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 6px;
  height: 6px;
  background: var(--accent-success);
  border-radius: 50%;
  opacity: 0;
  transition: all var(--transition-normal);
  box-shadow: 0 0 0 2px var(--text-primary);
}

.portfolio-trigger.active .portfolio-indicator {
  opacity: 1;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.2);
    opacity: 0.7;
  }
}

/* Mobile Actions (Hidden on Desktop) */
.mobile-actions {
  display: none;
  flex-direction: column;
  gap: var(--space-4);
  padding: var(--space-6) 0;
  border-top: 1px solid var(--border-subtle);
  margin-top: var(--space-12);
}

.mobile-cta {
  color: var(--text-inverse);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  background: var(--accent-primary);
  text-decoration: none;
  border-radius: var(--radius-lg);
  font-weight: 600;
  font-size: var(--font-size-sm);
  transition: all var(--transition-superfast);
}

.mobile-cta:hover {
  color: var(--text-inverse);
  background: var(--accent-secondary);
  transform: translateY(-1px);
}

.mobile-social {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
}

.mobile-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  color: var(--text-secondary);
  text-decoration: none;
  transition: all var(--transition-superfast);
}

.mobile-social a:hover {
  background: var(--accent-primary);
  color: var(--text-inverse);
  transform: translateY(-2px);
}

/* Mobile Backdrop */
.mobile-backdrop {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  z-index: 150;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.mobile-backdrop.active {
  display: block;
  opacity: 1;
  pointer-events: auto;
  z-index: 200;
}

/* Enhanced Focus States for Accessibility */
.nav-link:focus-visible,
.mobile-menu-toggle:focus-visible,
.mobile-cta:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

/* Active Navigation Indicator */
.nav-link[data-section].is-active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  background: var(--accent-success);
  border-radius: 50%;
}

/* Main */
main {
  flex: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-8);
  width: 100%;
  overflow: visible;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.025em;
}

h2 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--space-6);
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-3);
  color: var(--text-primary);
}

h4 {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-4);
}

p {
  color: var(--text-secondary);
  margin-bottom: var(--space-4);
  line-height: 1.7;
}

/* Layout helpers */
.single-col {
  gap: var(--card-gap);
  margin-bottom: var(--space-12);
}

.multi-col {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--card-gap);
  margin-bottom: var(--space-12);
}

.half-col {
  flex-basis: calc(50% - var(--card-gap) / 2);
}
.quarter-col {
  flex-basis: calc(25% - 3 * var(--card-gap) / 4);
}
.stack-col {
  margin-bottom: var(--space-6);
}

/* Card */
.card {
  background: var(--gradient-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  position: relative;
  overflow: hidden;
  transition: all var(--transition-slow);
  opacity: 0;
  transform: translateY(30px);
  perspective: 1000px;
  transform-style: preserve-3d;
  cursor: pointer;
}

.card::before,
.card::after {
  content: "";
  position: absolute;
  pointer-events: none; /* ensure overlays never block clicks */
}

.card::before {
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--gradient-accent);
  opacity: 0;
  transition: opacity var(--transition-normal);
  transform: translateZ(1px);
}

.card::after {
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(
    circle,
    rgba(59, 130, 246, 0.1) 0%,
    transparent 70%
  );
  opacity: 0;
  transition: all var(--transition-slow);
  transform: translateZ(-1px);
}

.card:hover {
  transform: translateY(-8px) rotateX(5deg) rotateY(-5deg) scale(1.02);
  border-color: var(--border-moderate);
  box-shadow: var(--shadow-xl), 0 25px 50px -12px rgba(59, 130, 246, 0.25);
  animation: cardSlideIn 0.8s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}
.card:hover::before {
  opacity: 1;
}
.card:hover::after {
  opacity: 1;
  transform: translateZ(-1px) rotate(180deg);
}

.card-show {
  opacity: 1;
  transform: translateY(0);
  animation: cardSlideIn 0.8s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

@keyframes cardSlideIn {
  0% {
    opacity: 0.7;
    transform: translateY(16px) rotateX(-15deg);
  }
  50% {
    opacity: 0.9;
    transform: translateY(-4px) rotateX(5deg);
  }
  100% {
    opacity: 1;
    transform: translateY(0) rotateX(0);
  }
}

/* Improved Hover Effects */
@media (hover: hover) {
  .card:hover {
    animation: subtle-float 2s ease-in-out infinite;
  }
}

@keyframes subtle-float {
  0%,
  100% {
    transform: translateY(-4px);
  }
  50% {
    transform: translateY(-8px);
  }
}

.card-content {
  display: flex;
  gap: var(--space-6);
  align-items: flex-start;
  transform-style: preserve-3d;
  transition: transform var(--transition-normal);
}
.text-content {
  flex: 1;
  transform-style: preserve-3d;
}
.card:hover .text-content {
  transform: translateZ(5px);
}

.card h2,
.card h3,
.card p {
  transition: transform var(--transition-normal);
  transform-style: preserve-3d;
}
.card:hover h2 {
  transform: translateZ(15px);
}
.card:hover h3 {
  transform: translateZ(8px);
}
.card:hover p {
  transform: translateZ(3px);
}

/* Individual card hover variants */
/* .card[data-index="1"]:hover {
  transform: translateY(-12px) rotateX(2deg) rotateY(-3deg) scale(1.01);
}
.card[data-index="2"]:hover {
  transform: translateY(-8px) rotateX(-2deg) rotateY(8deg) scale(1.02);
}
.card[data-index="3"]:hover {
  transform: translateY(-8px) rotateX(4deg) rotateY(-6deg) scale(1.02);
}
.card[data-index="4"]:hover {
  transform: translateY(-8px) rotateX(-1deg) rotateY(9deg) scale(1.02);
}
.card[data-index="5"]:hover {
  transform: translateY(-8px) rotateX(3deg) rotateY(-4deg) scale(1.02);
}
.card[data-index="6"]:hover {
  transform: translateY(-10px) rotateX(-3deg) rotateY(5deg) scale(1.02);
}
.card[data-index="7"]:hover {
  transform: translateY(-8px) rotateX(2deg) rotateY(-7deg) scale(1.02);
} */

/* Profile image */
.profile-pic {
  width: 0;
  height: 0;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--border-subtle);
  transition: all var(--transition-slow);
  transform-style: preserve-3d;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2), 0 6px 6px rgba(0, 0, 0, 0.1);
}
.profile-pic:hover {
  border-color: var(--accent-primary);
  transform: translateZ(20px) scale(1.05) rotateY(5deg);
  box-shadow: 0 25px 50px rgba(59, 130, 246, 0.3),
    0 15px 35px rgba(0, 0, 0, 0.2);
}

/* Buttons */
.my-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: var(--font-size-sm);
  text-decoration: none;
  border: 1px solid rgba(0, 0, 0, 0.1);
  cursor: pointer;
  transition: all var(--transition-superfast);
  background: var(--accent-primary);
  color: var(--text-inverse);
  margin: var(--space-4) 0;
  box-shadow: var(--shadow-sm);
  transform-style: preserve-3d;
}
.my-btn:hover {
  transform: translateY(-2px) translateZ(5px) rotateX(-3deg);
  box-shadow: 0 12px 25px rgba(59, 130, 246, 0.3), 0 8px 15px rgba(0, 0, 0, 0.1);
  background: var(--accent-secondary);
  border: 1px solid rgba(255, 255, 255, 0.2);
}
.my-btn:active {
  transform: translateY(-1px) translateZ(2px);
  transition: transform 0.1s ease;
}
.my-btn > i,
.my-btn > span {
  height: 20px;
  line-height: 20px;
  color: var(--text-inverse);
}
.my-btn > span {
  font-family: inherit;
  font-weight: 500;
}

.btn-wide {
  text-wrap: pretty;
  justify-content: center;
}

.btn-wide > span {
  height: auto;
}

/* Buttons in cards (3D lift) */
.card .my-btn {
  transform-style: preserve-3d;
}
.card:hover .my-btn {
  transform: translateZ(10px);
}
.card .my-btn:hover {
  transform: translateZ(15px) translateY(-2px) rotateX(-3deg);
}

/* Button rows */
.centre-btn,
.socials {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-2);
  padding: 0.5rem 1rem;
}

.linkedin {
  background: #0072b5;
}
.linkedin:hover {
  background: #005885;
}
.twitter {
  background: #1da1f2;
}
.twitter:hover {
  background: #0d8bd9;
}
.scholar {
  background: #0527fc;
}
.scholar:hover {
  background: #001c4d;
}
.orcid {
  background: #08872b;
}
.orcid:hover {
  background: #104c35;
}
.github {
  background: #24292e;
}
.github:hover {
  background: #2b3137;
}
.linkedin > span,
.twitter > span,
.scholar > span,
.orcid > span,
.github > span {
  color: #ffffff;
}

/* Lists */
.multi-column-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2);
  list-style: none;
  margin: var(--space-4) 0;
}
.multi-column-list li {
  padding: var(--space-2);
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  transition: all var(--transition-fast);
}
.multi-column-list li:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateX(4px);
}
.list-card {
  width: 100%;
}

/* Portfolio Drawer Styles */
#portfolio-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: 400px;
  height: 100vh;
  background: var(--glass-background);
  backdrop-filter: blur(20px) saturate(1.8) brightness(1.2);
  -webkit-backdrop-filter: blur(20px) saturate(1.8) brightness(1.2);
  border-left: 1px solid var(--border-moderate);
  box-shadow: -8px 0 32px 0 rgba(0, 0, 0, 0.3);
  z-index: 200;

  /* Transform for slide animation */
  transform: translateX(100%);
  opacity: 0;
  visibility: hidden;
  transition: transform var(--transition-normal),
    opacity var(--transition-normal), visibility var(--transition-normal);

  /* Vertical layout and scrolling */
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

#portfolio-drawer.open {
  transform: translateX(0);
  opacity: 1;
  visibility: visible;
}

/* Drawer header with close button */
.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-6);
  border-bottom: 1px solid var(--border-subtle);
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  flex-shrink: 0;
}

.drawer-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0;
  background: linear-gradient(135deg, var(--accent-primary), #8b5cf6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.close-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: 18px;
  font-weight: 700;
}

.close-btn:hover {
  background: #ef4444;
  border-color: #ef4444;
  transform: scale(1.1);
}

/* Scrollable content area */
.drawer-content {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: var(--space-4);

  /* Custom scrollbar */
  scrollbar-width: thin;
  scrollbar-color: var(--border-moderate) transparent;
}

.drawer-content::-webkit-scrollbar {
  width: 8px;
}

.drawer-content::-webkit-scrollbar-track {
  background: transparent;
}

.drawer-content::-webkit-scrollbar-thumb {
  background: var(--border-moderate);
  border-radius: 4px;
}

.drawer-content::-webkit-scrollbar-thumb:hover {
  background: var(--border-subtle);
}

/* Portfolio cards in vertical layout */
.portfolio-cards {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.portfolio-card {
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(12px) saturate(1.4) brightness(1.1);
  -webkit-backdrop-filter: blur(12px) saturate(1.4) brightness(1.1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.portfolio-card:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--border-moderate);
  transform: translateY(-4px);
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

.portfolio-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-4);
}

.portfolio-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 var(--space-4) 0;
}

.portfolio-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin: 0 0 var(--space-4) 0;
  line-height: 1.5;
}

.portfolio-actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.portfolio-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--accent-primary);
  color: white;
  text-decoration: none;
  border-radius: var(--radius-lg);
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.portfolio-btn:hover {
  background: #2563eb;
  transform: translateY(-1px);
}

/* Backdrop overlay */
.drawer-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  z-index: 150;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal),
    visibility var(--transition-normal);
}

.drawer-backdrop.active {
  opacity: 1;
  visibility: visible;
}

/* Close button */
.x-btn {
  position: absolute;
  top: 0;
  left: 20px;
  width: 20px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-size: var(--font-size-lg);
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-normal);
}
.x-btn:hover {
  background: var(--accent-danger);
  border-color: var(--accent-danger);
  transform: scale(1.1);
}

/* Toggle list */
.toggle-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow) ease-out;
}
.toggle-content.active {
  max-height: 2000px;
}
.toggle-content ul {
  list-style: none;
  margin: var(--space-4) 0;
}
.toggle-content li {
  position: relative;
  padding: var(--space-2) 0 var(--space-2) var(--space-6);
  color: var(--text-secondary);
  line-height: 1.6;
}
.toggle-content li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent-primary);
  font-weight: bold;
}

/* Separator */
.separator {
  height: 1px;
  background: var(--gradient-accent);
  margin: var(--space-8) 0;
  border-radius: var(--radius-sm);
}

/* Footer */
/* Enhanced Footer Styles */
footer {
  background: var(--gradient-primary);
  border-top: 1px solid var(--border-subtle);
  margin-top: auto;
  position: relative;
  overflow: hidden;
}

footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--gradient-accent);
  opacity: 0.5;
}

.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--space-8);
  padding: var(--space-12) 0 var(--space-8);
}

.footer-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.footer-title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-2);
}

.footer-subtitle {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  font-weight: 600;
  margin-bottom: var(--space-3);
}

.footer-description {
  color: var(--text-muted);
  line-height: 1.6;
  font-size: var(--font-size-sm);
}

.footer-heading {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-3);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: var(--font-size-sm);
  transition: all var(--transition-fast);
  position: relative;
  padding: var(--space-1) 0;
}

.footer-link::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--accent-primary);
  transition: width var(--transition-normal);
}

.footer-link:hover {
  color: var(--text-primary);
  transform: translateX(4px);
}

.footer-link:hover::before {
  width: 100%;
}

.footer-social {
  display: flex;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.footer-social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  color: var(--text-secondary);
  text-decoration: none;
  transition: all var(--transition-normal);
  backdrop-filter: blur(10px);
}

.footer-social-link:hover {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: var(--text-primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(59, 130, 246, 0.3);
}

.footer-social-link svg {
  transition: transform var(--transition-fast);
}

.footer-social-link:hover svg {
  transform: scale(1.1);
}

.footer-contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-email,
.footer-location {
  color: var(--text-muted);
  font-size: var(--font-size-sm);
  margin: 0;
}

.footer-email {
  font-weight: 500;
}

/* Footer Bottom */
.footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding: var(--space-6) 0;
}

.footer-bottom-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-copyright {
  color: var(--text-muted);
  font-size: var(--font-size-sm);
  margin: 0;
}

.footer-bottom-links {
  display: flex;
  gap: var(--space-6);
}

.footer-bottom-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}

.footer-bottom-link:hover {
  color: var(--accent-primary);
}

.footer-updated {
  color: var(--text-muted);
  font-size: var(--font-size-xs);
  margin: 0;
}

/* Focus visibility */
.nav-link:focus-visible,
.my-btn:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

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

/* High contrast adjustments */
@media (prefers-contrast: high) {
  :root {
    --border-subtle: rgba(255, 255, 255, 0.3);
    --border-moderate: rgba(255, 255, 255, 0.5);
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  body::before {
    animation: none;
  }
  .card,
  .card:hover,
  .my-btn,
  .my-btn:hover,
  .profile-pic,
  .profile-pic:hover {
    transform: none !important;
    perspective: none !important;
    transform-style: flat !important;
  }
  .card:hover {
    box-shadow: var(--shadow-lg) !important;
  }
}

/* Perf hints */
.card,
.my-btn,
.profile-pic {
  will-change: transform;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}
@media (hover: hover) {
  .card:not(:hover),
  .my-btn:not(:hover),
  .profile-pic:not(:hover) {
    will-change: auto;
  }
}

/* Responsive */
@media (min-width: 768px) {
  .card-content.left-image {
    align-items: center;
  }
  .profile-pic {
    width: 200px;
    height: 200px;
  }
}

@media (min-width: 1024px) {
  main {
    padding: var(--space-12);
  }
  .card p,
  .card li {
    font-size: var(--font-size-lg);
  }
  .profile-pic {
    width: 250px;
    height: 250px;
  }
  .multi-column-list {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1200px) and (max-width: 1899px) {
  .half-col,
  .quarter-col {
    margin: 0;
  }
  .quarter-col:nth-child(2) {
    flex-basis: calc(50% - var(--card-gap) / 2);
  }
  .quarter-col:nth-child(3) {
    flex-basis: 100%;
  }
  .multi-column-list {
    grid-template-columns: repeat(2, 1fr);
  }
  .card {
    height: 100%;
  }
  .card p,
  .card li {
    font-size: var(--font-size-lg);
  }
  .profile-pic {
    width: 300px;
    height: 300px;
  }
}

@media (min-width: 1900px) {
  .card {
    height: 100%;
  }
  .card p,
  .card li {
    font-size: var(--font-size-lg);
  }
  .profile-pic {
    width: 300px;
    height: 300px;
  }
  .multi-column-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Responsive Design */
@media (max-width: 1024px) {
  .footer-content {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
  }

  .footer-main {
    grid-column: 1 / -1;
  }

  .navbar-nav .nav-text {
    display: none;
  }
}

@media (max-width: 767px) {
  :root {
    --card-gap: var(--space-4);
  }

  .navbar {
    flex-wrap: wrap;
    gap: var(--space-2);
  }
  .navbar-brand {
    font-size: var(--font-size-xl);
  }

  .single-col {
    margin-bottom: var(--card-gap);
  }

  .multi-col {
    flex-direction: column;
    margin-bottom: var(--card-gap);
  }
  .half-col,
  .quarter-col {
    flex-basis: 100%;
  }
  .multi-col > *,
  .stack-col:nth-child(2) {
    margin-bottom: 0;
    margin-top: 0;
  }

  .stack-col:nth-child(1) {
    margin-bottom: var(--card-gap);
  }

  .card-content {
    flex-direction: column;
    text-align: center;
  }
  .card-content.left-image {
    flex-direction: column;
  }

  .profile-pic {
    width: 150px;
    height: 150px;
    margin: 0 auto var(--space-4);
  }

  h2 {
    font-size: var(--font-size-2xl);
  }
  h3 {
    font-size: var(--font-size-lg);
  }

  /* Simpler 3D on mobile */
  .card {
    perspective: none;
    transform-style: flat;
  }
  .card:hover {
    transform: translateY(-4px) scale(1.01);
    box-shadow: var(--shadow-lg);
  }
  .card:hover .card-content,
  .card:hover .text-content,
  .card:hover h2,
  .card:hover h3,
  .card:hover p,
  .card:hover .my-btn {
    transform: none;
  }
  .profile-pic:hover {
    transform: scale(1.05);
  }
  .my-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
  }

  .my-btn {
    font-size: var(--font-size-xs);
    padding: var(--space-2) var(--space-4);
  }

  .mobile-menu-toggle {
    display: flex;
    z-index: 300;
  }

  .hide-mobile {
    display: none !important;
  }

  .navbar-menu.active .hide-mobile {
    display: list-item !important;
  }

  .mobile-backdrop {
    z-index: 200;
  }

  .navbar-menu {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--gradient-primary);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
    border-top: 1px solid var(--border-subtle);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 250;
    width: 100vw;
    height: calc(100dvh - var(--header-h));
    max-height: none;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: var(--space-4) var(--space-6);
    /* padding-bottom: calc(var(--space-8) + 8vh); */
  }

  .navbar-menu.active {
    transform: translateY(42%);
    opacity: 1;
    visibility: visible;
    transition: transform 250ms ease, opacity 250ms ease;
  }

  .navbar-nav {
    display: flex;
    flex-direction: column;
    width: 100%;
    gap: var(--space-2);
  }

  .nav-link {
    justify-content: flex-start;
    padding: var(--space-4);
    width: 100%;
    border-radius: var(--radius-xl);
  }

  .navbar-nav .nav-text {
    display: block;
  }

  .mobile-actions {
    display: flex;
  }

  .brand-tagline {
    display: none;
  }

  .navbar-brand {
    font-size: var(--font-size-xl);
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-6);
    padding: var(--space-8) 0 var(--space-6);
  }

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

  .footer-social {
    justify-content: center;
  }

  .footer-bottom-content {
    flex-direction: column;
    text-align: center;
    gap: var(--space-3);
  }

  .footer-bottom-links {
    order: -1;
  }

  #portfolio-drawer {
    width: 100vw;
    border-left: none;
    border-top: 1px solid var(--border-moderate);
  }

  .drawer-content {
    padding: var(--space-4) var(--space-4);
  }

  .portfolio-card {
    padding: var(--space-4);
  }

  .portfolio-image {
    height: 150px;
  }
}

@media (max-width: 480px) {
  .footer-container {
    padding: 0 var(--space-4);
  }

  .footer-content {
    padding: var(--space-6) 0 var(--space-4);
  }

  .footer-social {
    flex-wrap: wrap;
    gap: var(--space-2);
  }

  .footer-social-link {
    width: 40px;
    height: 40px;
  }

  .footer-bottom-links {
    flex-direction: column;
    gap: var(--space-2);
  }
  .navbar {
    padding: 0 var(--space-4);
  }

  .navbar-brand {
    font-size: var(--font-size-lg);
  }

  .navbar-menu {
    padding: var(--space-3) var(--space-4);
  }

  .navbar-nav .nav-text {
    display: block;
  }
}

/* Larger screens with hover: staggered delays + 3D */
/* @media (min-width: 768px) and (hover: hover) {
  .card {
    perspective: 1000px;
    transform-style: preserve-3d;
  }
  .card[data-index="1"] {
    animation-delay: 0ms;
  }
  .card[data-index="2"] {
    animation-delay: 10ms;
  }
  .card[data-index="3"] {
    animation-delay: 20ms;
  }
  .card[data-index="4"] {
    animation-delay: 30ms;
  }
  .card[data-index="5"] {
    animation-delay: 40ms;
  }
  .card[data-index="6"] {
    animation-delay: 50ms;
  }
  .card[data-index="7"] {
    animation-delay: 60ms;
  }
} */