:root {
    color-scheme: dark;
    --color-bg: #121212;
    --color-surface: #171717;
    --color-surface-raised: #1c1c1c;
    --color-text: #f1f1ef;
    --color-muted: #969694;
    --color-dim: #686866;
    --color-line: rgba(255, 255, 255, 0.14);
    --color-line-strong: rgba(255, 255, 255, 0.34);
    --font-sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
    --page-gutter: clamp(1.25rem, 4vw, 5rem);
    --content-width: 76rem;
    --radius-sm: 0.25rem;
    --radius-md: 0.75rem;
    --duration-fast: 160ms;
    --duration-base: 320ms;
    --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    min-width: 320px;
    background: var(--color-bg);
    scroll-behavior: smooth;
    scroll-snap-type: none;
    scrollbar-color: var(--color-line-strong) var(--color-bg);
    scrollbar-gutter: stable;
}

@media (min-width: 49rem) and (hover: hover) and (pointer: fine) {
    html:has(.home-page) { scroll-snap-type: y proximity; }
}

html.has-custom-cursor input, html.has-custom-cursor textarea { cursor: text; }
html.has-custom-cursor select { cursor: auto; }

body {
    position: relative;
    min-width: 320px;
    min-height: 100vh;
    margin: 0;
    overflow-x: hidden;
    background:
        radial-gradient(circle at 15% 12%, rgba(255, 255, 255, 0.035), transparent 28rem),
        radial-gradient(circle at 86% 48%, rgba(255, 255, 255, 0.025), transparent 34rem),
        var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

@supports (overflow: clip) {
    body {
        overflow-x: clip;
    }
}

::selection {
    background: var(--color-text);
    color: var(--color-bg);
}

h1,
h2,
h3,
p {
    margin: 0;
}

h1,
h2,
h3 {
    line-height: 1.05;
    text-wrap: balance;
}

a {
    color: inherit;
    text-decoration: none;
}

button,
input,
textarea,
select {
    color: inherit;
    font: inherit;
}

button {
    border: 0;
}

img,
svg {
    display: block;
    max-width: 100%;
}

:focus-visible {
    outline: 2px solid var(--color-text);
    outline-offset: 4px;
}

a:focus:not(:focus-visible),
button:focus:not(:focus-visible) {
    outline: none;
}

/* A mouse hover can inherit :focus-visible after keyboard/context-menu use.
   The cursor provides pointer feedback; keyboard input restores the outline. */
html.has-custom-cursor.is-pointer-active a:focus,
html.has-custom-cursor.is-pointer-active button:focus {
    outline: none;
}

/* One translucent, fading grid shared by the home hero and content pages. */
.ambient-grid {
    pointer-events: none;
    background:
        linear-gradient(var(--color-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--color-line) 1px, transparent 1px);
    background-size: clamp(3.5rem, 9vw, 8rem) clamp(3.5rem, 9vw, 8rem);
    opacity: 0.17;
    -webkit-mask-image: radial-gradient(circle at center, black, transparent 78%);
    mask-image: radial-gradient(circle at center, black, transparent 78%);
}

.page-grid {
    display: none;
}

.skip-link {
    position: fixed;
    top: 0.75rem;
    left: 0.75rem;
    z-index: 10020;
    padding: 0.65rem 0.9rem;
    border-radius: var(--radius-sm);
    background: var(--color-text);
    color: var(--color-bg);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    transform: translateY(-180%);
    transition: transform var(--duration-fast) ease-out;
}

.skip-link:focus {
    transform: translateY(0);
}

.global-nav {
    position: fixed;
    top: max(1rem, env(safe-area-inset-top));
    right: max(1rem, env(safe-area-inset-right));
    left: max(1rem, env(safe-area-inset-left));
    z-index: 1000;
    display: flex;
    width: min(calc(100% - 2rem), var(--content-width));
    min-height: 3rem;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.35rem 0.45rem 0.35rem 0.8rem;
    margin-inline: auto;
    border: 1px solid rgba(255, 255, 255, 0.11);
    border-radius: 0.85rem;
    background: rgba(18, 18, 18, 0.76);
    box-shadow: 0 0.8rem 2.5rem rgba(0, 0, 0, 0.18);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
}

.global-nav__brand {
    color: var(--color-text);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.08em;
}

.global-nav__links {
    display: flex;
    align-items: center;
    gap: 0.15rem;
}

.global-nav__links a {
    position: relative;
    display: inline-flex;
    min-height: 2.25rem;
    align-items: center;
    padding: 0.35rem 0.65rem;
    border-radius: 0.55rem;
    color: var(--color-muted);
    font-family: var(--font-mono);
    font-size: 0.68rem;
    transition: background-color var(--duration-fast) ease-out, color var(--duration-fast) ease-out;
}

.global-nav__links a:hover,
.global-nav__links a[aria-current="page"] {
    background: rgba(255, 255, 255, 0.055);
    color: var(--color-text);
}

@media (max-width: 32rem) {
    .global-nav {
        left: 0.65rem;
        right: 0.65rem;
        width: calc(100% - 1.3rem);
        padding-left: 0.65rem;
    }

    .global-nav__links a {
        padding-inline: 0.48rem;
        font-size: 0.62rem;
    }
}

.sr-only {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

.site-noise {
    position: fixed;
    inset: 0;
    z-index: 9990;
    pointer-events: none;
    background: url("../assets/noise.svg") repeat;
    opacity: 0.028;
    mix-blend-mode: screen;
}

.section-marker {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    color: var(--color-muted);
    font-family: var(--font-mono);
    font-size: clamp(0.68rem, 1.2vw, 0.78rem);
    letter-spacing: 0.13em;
    text-transform: uppercase;
}

.section-marker span {
    color: var(--color-text);
}

@media (max-width: 48rem), (hover: none) and (pointer: coarse) {
    html {
        scroll-snap-type: none;
    }

    .site-noise {
        display: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}