:root {
    color-scheme: light;
    --color-ink: #11203b;
    --color-ink-muted: rgba(17, 32, 59, 0.72);
    --color-paper: #f5f1e8;
    --color-paper-strong: #fffdf8;
    --color-accent: #ff6a3d;
    --color-accent-soft: rgba(255, 106, 61, 0.14);
    --color-line: rgba(17, 32, 59, 0.1);
    --color-surface: rgba(255, 255, 255, 0.72);
    --color-surface-strong: rgba(255, 255, 255, 0.9);
    --shadow-soft: 0 20px 50px rgba(17, 32, 59, 0.08);
    --shadow-strong: 0 30px 90px rgba(17, 32, 59, 0.16);
    --radius-s: 16px;
    --radius-m: 24px;
    --radius-l: 36px;
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.5rem;
    --spacing-6: 2rem;
    --spacing-7: 3rem;
    --spacing-8: 4rem;
    --spacing-9: 6rem;
    --site-width: 1180px;
    --header-height: 76px;
    --transition-fast: 180ms ease;
    --transition-medium: 280ms ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-width: 320px;
    font-family: "Manrope", sans-serif;
    color: var(--color-ink);
    background:
        radial-gradient(circle at top left, rgba(255, 106, 61, 0.18), transparent 28%),
        radial-gradient(circle at 80% 20%, rgba(31, 111, 235, 0.1), transparent 30%),
        linear-gradient(180deg, #fbf7ef 0%, #f2ede3 100%);
}

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

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

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

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

.site-shell {
    position: relative;
    overflow: clip;
}

.site-shell::before,
.site-shell::after {
    content: "";
    position: absolute;
    inset: auto;
    pointer-events: none;
    z-index: -1;
}

.site-shell::before {
    top: 8rem;
    right: -6rem;
    width: 20rem;
    height: 20rem;
    border-radius: 999px;
    background: rgba(255, 106, 61, 0.12);
    filter: blur(40px);
}

.site-shell::after {
    bottom: 8rem;
    left: -6rem;
    width: 18rem;
    height: 18rem;
    border-radius: 999px;
    background: rgba(36, 99, 235, 0.12);
    filter: blur(46px);
}

.site-header,
.hero,
.feature-section,
.process-section,
.modules-section,
.contact-section {
    width: min(calc(100% - 2rem), var(--site-width));
    margin: 0 auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-5);
    min-height: var(--header-height);
    padding: var(--spacing-4) 0;
    backdrop-filter: blur(18px);
}

.site-header.is-scrolled {
    background: rgba(245, 241, 232, 0.72);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-3);
}

.brand__mark {
    display: grid;
    place-items: center;
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--color-accent), #ff9d6b);
    color: #fff;
    font-family: "Space Grotesk", sans-serif;
    font-weight: 700;
    box-shadow: var(--shadow-soft);
}

.brand__text {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
}

.brand__text strong {
    font-size: 1rem;
}

.brand__text small {
    color: var(--color-ink-muted);
}

.site-nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-5);
}

.site-nav a {
    color: var(--color-ink-muted);
    transition: color var(--transition-fast);
}

.site-nav a:hover,
.site-nav a:focus-visible {
    color: var(--color-ink);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 0.28rem;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    border: 1px solid var(--color-line);
    border-radius: 999px;
    background: var(--color-surface-strong);
    cursor: pointer;
}

.nav-toggle span:not(.sr-only) {
    width: 1.2rem;
    height: 2px;
    border-radius: 999px;
    background: var(--color-ink);
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

.hero {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
    gap: var(--spacing-7);
    align-items: center;
    padding: var(--spacing-8) 0 var(--spacing-9);
}

.eyebrow {
    margin: 0 0 var(--spacing-4);
    color: var(--color-accent);
    font-family: "Space Grotesk", sans-serif;
    font-size: 0.92rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.hero h1,
.section-heading h2,
.contact-card h2 {
    margin: 0;
    font-family: "Space Grotesk", sans-serif;
    line-height: 0.96;
    letter-spacing: -0.04em;
}

.hero h1 {
    max-width: 11ch;
    font-size: clamp(3rem, 8vw, 5.8rem);
}

.hero__lead,
.section-heading p,
.feature-card p,
.timeline__item p,
.module-card p,
.contact-card p,
.shader-card__fallback p {
    color: var(--color-ink-muted);
    line-height: 1.7;
}

.hero__lead {
    max-width: 62ch;
    margin: var(--spacing-5) 0 0;
    font-size: 1.08rem;
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-4);
    margin-top: var(--spacing-6);
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 3.25rem;
    padding: 0 1.25rem;
    border-radius: 999px;
    border: 1px solid transparent;
    font-weight: 700;
    transition:
        transform var(--transition-fast),
        background-color var(--transition-fast),
        border-color var(--transition-fast);
}

.button:hover,
.button:focus-visible {
    transform: translateY(-1px);
}

.button--primary {
    background: var(--color-ink);
    color: #fff;
    box-shadow: var(--shadow-soft);
}

.button--ghost {
    border-color: var(--color-line);
    background: var(--color-surface);
}

.hero__metrics {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--spacing-4);
    padding: 0;
    margin: var(--spacing-7) 0 0;
    list-style: none;
}

.hero__metrics li,
.feature-card,
.module-card,
.timeline__item,
.contact-card,
.shader-card {
    border: 1px solid var(--color-line);
    background: var(--color-surface);
    box-shadow: var(--shadow-soft);
}

.hero__metrics li {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
    padding: var(--spacing-5);
    border-radius: var(--radius-m);
}

.hero__metrics strong {
    font-family: "Space Grotesk", sans-serif;
    font-size: 1.5rem;
}

.shader-card {
    padding: var(--spacing-4);
    border-radius: var(--radius-l);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(255, 255, 255, 0.7));
    overflow: hidden;
}

.shader-card__frame {
    position: relative;
    min-height: 32rem;
    border-radius: calc(var(--radius-l) - 0.5rem);
    border: 1px solid rgba(17, 32, 59, 0.08);
    overflow: hidden;
    background: linear-gradient(180deg, #10203a 0%, #1d3357 100%);
}

.shader-card__ambient,
.shader-card__grid,
.shader-card__surface {
    position: absolute;
    inset: 0;
}

.shader-card__ambient {
    background:
        radial-gradient(circle at 20% 20%, rgba(255, 106, 61, 0.8), transparent 22%),
        radial-gradient(circle at 78% 22%, rgba(77, 164, 255, 0.56), transparent 20%),
        radial-gradient(circle at 56% 78%, rgba(255, 209, 102, 0.4), transparent 18%);
    filter: blur(12px);
    transform: scale(1.08);
}

.shader-card__grid {
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
    background-size: 34px 34px;
    mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.95), rgba(0, 0, 0, 0.3));
}

.shader-card__surface {
    display: grid;
    place-items: end start;
    padding: var(--spacing-5);
}

.shader-card__fallback {
    width: min(100%, 22rem);
    padding: var(--spacing-5);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-m);
    background: rgba(11, 19, 35, 0.54);
    backdrop-filter: blur(14px);
    color: #f6f8fb;
}

.shader-card__badge {
    display: inline-flex;
    align-items: center;
    min-height: 2rem;
    padding: 0 0.8rem;
    border-radius: 999px;
    background: rgba(255, 106, 61, 0.22);
    color: #ffd4c6;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.shader-card__fallback h2 {
    margin: var(--spacing-4) 0 var(--spacing-3);
    font-family: "Space Grotesk", sans-serif;
    font-size: clamp(1.6rem, 4vw, 2.4rem);
    line-height: 1;
}

.shader-card__fallback p {
    margin: 0;
    color: rgba(246, 248, 251, 0.82);
}

.shader-card__meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-4);
    margin-top: var(--spacing-4);
    padding: 0 var(--spacing-2);
    color: var(--color-ink-muted);
}

.shader-card__meta strong {
    color: var(--color-ink);
}

.feature-section,
.process-section,
.modules-section,
.contact-section {
    padding-bottom: var(--spacing-9);
}

.section-heading {
    max-width: 48rem;
    margin-bottom: var(--spacing-7);
}

.section-heading h2,
.contact-card h2 {
    font-size: clamp(2.3rem, 5vw, 4rem);
}

.section-heading p:last-child,
.contact-card p {
    margin-top: var(--spacing-4);
}

.feature-grid,
.modules-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--spacing-4);
}

.feature-card,
.module-card {
    padding: var(--spacing-5);
    border-radius: var(--radius-m);
}

.feature-card h3,
.module-card h3,
.timeline__item h3 {
    margin: 0 0 var(--spacing-3);
    font-size: 1.2rem;
}

.timeline {
    display: grid;
    gap: var(--spacing-4);
}

.timeline__item {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--spacing-5);
    padding: var(--spacing-5);
    border-radius: var(--radius-m);
}

.timeline__step,
.module-card__label {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 3rem;
    min-height: 2rem;
    padding: 0 var(--spacing-3);
    border-radius: 999px;
    background: var(--color-accent-soft);
    color: var(--color-accent);
    font-family: "Space Grotesk", sans-serif;
    font-weight: 700;
}

.module-card__label {
    margin-bottom: var(--spacing-4);
}

.contact-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-6);
    padding: var(--spacing-7);
    border-radius: var(--radius-l);
}

[data-reveal] {
    opacity: 0;
    transform: translateY(20px);
    transition:
        opacity 420ms ease,
        transform 420ms ease;
}

[data-reveal].is-visible {
    opacity: 1;
    transform: translateY(0);
}

body.menu-open {
    overflow: hidden;
}

@media (max-width: 1080px) {
    .hero,
    .feature-grid,
    .modules-grid,
    .contact-card {
        grid-template-columns: 1fr;
    }

    .contact-card {
        display: grid;
    }

    .hero {
        padding-top: var(--spacing-7);
    }
}

@media (max-width: 840px) {
    .nav-toggle {
        display: inline-flex;
    }

    .site-nav {
        position: absolute;
        top: calc(100% - 0.25rem);
        right: 0;
        left: 0;
        display: grid;
        gap: var(--spacing-2);
        padding: var(--spacing-4);
        border: 1px solid var(--color-line);
        border-radius: var(--radius-m);
        background: rgba(255, 253, 248, 0.96);
        box-shadow: var(--shadow-strong);
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        transform: translateY(-6px);
        transition:
            opacity var(--transition-fast),
            transform var(--transition-fast),
            visibility var(--transition-fast);
    }

    .site-nav.is-open {
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
        transform: translateY(0);
    }

    .site-nav a {
        padding: 0.9rem 1rem;
        border-radius: 14px;
        background: rgba(17, 32, 59, 0.04);
        color: var(--color-ink);
    }
}

@media (max-width: 720px) {
    .hero__metrics {
        grid-template-columns: 1fr;
    }

    .shader-card__frame {
        min-height: 26rem;
    }

    .section-heading h2,
    .contact-card h2 {
        line-height: 1.02;
    }

    .timeline__item {
        grid-template-columns: 1fr;
    }
}

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

    *,
    *::before,
    *::after {
        animation: none !important;
        transition: none !important;
    }
}