:root {
  --color-surface: 251 250 255;
  --color-surface-dim: 219 217 224;
  --color-surface-bright: 251 250 255;
  --color-surface-container-lowest: 255 255 255;
  --color-surface-container-low: 245 243 250;
  --color-surface-container: 239 237 245;
  --color-surface-container-high: 233 231 239;
  --color-surface-container-highest: 227 225 233;
  --color-on-surface: 26 27 33;
  --color-on-surface-variant: 69 70 79;
  --color-inverse-surface: 17 19 26;
  --color-inverse-on-surface: 225 226 236;
  --color-outline: 118 118 128;
  --color-outline-variant: 198 197 208;
  --color-surface-tint: 24 87 200;
  --color-primary: 24 87 200;
  --color-on-primary: 255 255 255;
  --color-primary-container: 218 226 255;
  --color-on-primary-container: 0 24 71;
  --color-inverse-primary: 178 197 255;
  --color-secondary: 124 58 237;
  --color-on-secondary: 255 255 255;
  --color-secondary-container: 234 221 255;
  --color-on-secondary-container: 37 0 90;
  --color-tertiary: 161 92 0;
  --color-on-tertiary: 255 255 255;
  --color-tertiary-container: 255 220 191;
  --color-on-tertiary-container: 45 22 0;
  --color-error: 186 26 26;
  --color-on-error: 255 255 255;
  --color-error-container: 255 218 214;
  --color-on-error-container: 65 0 2;
  --color-primary-fixed: 218 226 255;
  --color-primary-fixed-dim: 178 197 255;
  --color-on-primary-fixed: 0 24 71;
  --color-on-primary-fixed-variant: 0 64 160;
  --color-secondary-fixed: 234 221 255;
  --color-secondary-fixed-dim: 210 187 255;
  --color-on-secondary-fixed: 37 0 90;
  --color-on-secondary-fixed-variant: 90 0 198;
  --color-tertiary-fixed: 255 220 191;
  --color-tertiary-fixed-dim: 255 184 116;
  --color-on-tertiary-fixed: 45 22 0;
  --color-on-tertiary-fixed-variant: 106 59 0;
  --color-background: 251 250 255;
  --color-on-background: 26 27 33;
  --color-surface-variant: 227 225 233;
  --glass-card-bg: 255 255 255;
  --glass-card-bg-alpha: 0.7;
  --glass-card-border: 17 19 26;
  --glass-card-border-alpha: 0.08;
  --hero-glow: 24 87 200;
}

body {
    color: rgb(var(--color-on-background));
    font-family: 'Geist', sans-serif;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.glass-card {
    background: rgb(var(--glass-card-bg) / var(--glass-card-bg-alpha));
    backdrop-filter: blur(12px);
    border: 1px solid rgb(var(--glass-card-border) / var(--glass-card-border-alpha));
    transition: background-color 0.3s ease, border-color 0.5s cubic-bezier(0.23, 1, 0.32, 1), transform 0.5s cubic-bezier(0.23, 1, 0.32, 1), box-shadow 0.5s cubic-bezier(0.23, 1, 0.32, 1);
}

.glass-card:hover {
    border-color: rgb(var(--color-primary));
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 30px 60px -15px rgb(var(--hero-glow) / 0.25);
}

.gradient-text {
    background: linear-gradient(135deg, rgb(var(--color-primary)) 0%, rgb(var(--color-secondary)) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.material-symbols-outlined {
    font-variation-settings: 'FILL' 0, 'wght' 300, 'GRAD' 0, 'opsz' 24;
}

/* Reveal Animation Classes */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.23, 1, 0.32, 1);
}
.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Floating nav pill */
.nav-pill {
    background: rgb(var(--glass-card-bg) / 0.75);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgb(var(--glass-card-border) / var(--glass-card-border-alpha));
    box-shadow: 0 1px 0 0 rgb(var(--glass-card-border) / 0.4) inset;
}

.nav-link {
    position: relative;
}
.nav-link::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: -6px;
    height: 2px;
    border-radius: 9999px;
    background: rgb(var(--color-primary));
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 250ms cubic-bezier(0.23, 1, 0.32, 1);
}
.nav-link:hover::after {
    transform: scaleX(1);
}

.nav-cta {
    transition: transform 250ms cubic-bezier(0.23, 1, 0.32, 1), box-shadow 250ms cubic-bezier(0.23, 1, 0.32, 1);
}
.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 28px -8px rgb(var(--hero-glow) / 0.5);
}
.nav-cta:active {
    transform: translateY(0) scale(0.97);
}

/* Tech stack marquee */
.marquee-fade-left,
.marquee-fade-right {
    background: linear-gradient(to right, rgb(var(--color-background)) 0%, rgb(var(--color-background) / 0) 100%);
}
.marquee-fade-right {
    right: 0;
    left: auto;
    transform: scaleX(-1);
}

.marquee-track {
    animation: marquee-scroll 30s linear infinite;
    will-change: transform;
}
.marquee-viewport:hover .marquee-track {
    animation-play-state: paused;
}

@keyframes marquee-scroll {
    from { transform: translate3d(0, 0, 0); }
    to { transform: translate3d(-50%, 0, 0); }
}

.marquee-logo {
    opacity: 0.65;
    transition: opacity 200ms ease, transform 200ms ease;
}
.marquee-logo:hover {
    opacity: 1;
    transform: scale(1.05);
}

@media (max-width: 640px) {
    .marquee-track {
        animation-duration: 40s;
    }
}

@media (prefers-reduced-motion: reduce) {
    .marquee-track {
        animation: none;
    }
}