:root {
    /* Color */
    --color-bg: #0c0c0b;
    --color-surface: #161615;
    --color-text: #e8e6e0;
    --color-muted: #65635e;
    --color-accent: #c9a96e;
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-strong: rgba(255, 255, 255, 0.18);
    --color-nav-bg: rgba(12, 12, 11, 0.6);

    /* Typography — families */
    --font-display: 'Cormorant Garamond', serif;
    --font-body: 'Outfit', sans-serif;

    /* Typography — weights */
    --weight-light: 300;
    --weight-regular: 400;
    --weight-medium: 500;
    --weight-semibold: 600;
    --weight-bold: 700;

    /* Typography — sizes */
    --size-body: 17px;
    --size-h1: 72px;
    --size-h2: 48px;
    --size-h3: 24px;
    --size-wordmark: 18px;
    --size-meta: 13px;
    --size-label: 14px;

    /* Typography — line height & tracking */
    --line-body: 1.7;
    --line-display: 1.05;
    --track-display: -0.03em;
    --track-wordmark: 0.15em;

    /* Spacing */
    --space-xs: 8px;
    --space-sm: 16px;
    --space-md: 24px;
    --space-lg: 48px;
    --space-xl: 80px;
    --space-section: 120px;

    /* Layout */
    --max-width: 1120px;
    --gutter: 24px;
    --nav-height: 72px;

    /* Effects */
    --radius-sm: 4px;
    --radius-md: 8px;
    --blur-nav: 12px;
    --grain-opacity: 0.025;

    /* Motion */
    --ease: cubic-bezier(0.22, 1, 0.36, 1);
    --duration-fast: 200ms;
    --duration-base: 400ms;
    --duration-slow: 800ms;

    /* Reveal */
    --reveal-translate: 24px;
}

/* ---------- Reset ---------- */

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

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

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

button {
    font: inherit;
    color: inherit;
    background: none;
    border: none;
    cursor: pointer;
}

ul,
ol {
    list-style: none;
}

h1, h2, h3, h4, h5, h6, p {
    margin: 0;
}

/* ---------- Base ---------- */

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: var(--size-body);
    font-weight: var(--weight-regular);
    line-height: var(--line-body);
    min-height: 100vh;
    overflow-x: hidden;
}

h1, h2, h3 {
    font-family: var(--font-display);
    font-weight: var(--weight-regular);
    line-height: var(--line-display);
    letter-spacing: var(--track-display);
    color: var(--color-text);
}

h1 {
    font-size: var(--size-h1);
}

h2 {
    font-size: var(--size-h2);
}

h3 {
    font-size: var(--size-h3);
    letter-spacing: -0.01em;
}

p {
    color: var(--color-muted);
}

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

/* ---------- Buttons ---------- */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-body);
    font-size: var(--size-label);
    font-weight: var(--weight-medium);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 14px 28px;
    border-radius: var(--radius-sm);
    transition: background-color var(--duration-fast) var(--ease),
                color var(--duration-fast) var(--ease),
                transform var(--duration-fast) var(--ease);
}

.btn--primary {
    background-color: var(--color-accent);
    color: var(--color-bg);
}

.btn--primary:hover {
    background-color: var(--color-text);
    transform: translateY(-1px);
}

/* ---------- Nav ---------- */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    height: var(--nav-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--space-lg);
    background-color: var(--color-nav-bg);
    backdrop-filter: blur(var(--blur-nav));
    -webkit-backdrop-filter: blur(var(--blur-nav));
    border-bottom: 1px solid var(--color-border);
}

.nav__wordmark {
    font-family: var(--font-display);
    font-weight: var(--weight-regular);
    font-size: var(--size-wordmark);
    letter-spacing: var(--track-wordmark);
    text-transform: uppercase;
    color: var(--color-text);
    transition: color var(--duration-fast) var(--ease);
}

.nav__wordmark:hover {
    color: var(--color-accent);
}

.nav__cta {
    font-family: var(--font-body);
    font-size: var(--size-meta);
    font-weight: var(--weight-medium);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text);
    padding: 10px 20px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: border-color var(--duration-fast) var(--ease),
                color var(--duration-fast) var(--ease),
                background-color var(--duration-fast) var(--ease);
}

.nav__cta:hover {
    color: var(--color-accent);
    border-color: var(--color-accent);
}

/* ---------- Hero ---------- */

.hero {
    position: relative;
    min-height: 100vh;
    padding: calc(var(--nav-height) + var(--space-section)) var(--gutter) var(--space-section);
    max-width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--space-xl);
    align-items: center;
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    opacity: var(--grain-opacity);
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='300' height='300'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

.hero__text,
.hero__visual {
    position: relative;
    z-index: 1;
}

.hero__text {
    text-align: left;
}

.hero__text h1 {
    font-weight: var(--weight-light);
    margin-bottom: var(--space-md);
}

.hero__text h1 em {
    font-style: italic;
    font-weight: var(--weight-regular);
    color: var(--color-accent);
}

.hero__text p {
    max-width: 46ch;
    margin-bottom: var(--space-lg);
}

.hero__visual {
    display: flex;
    justify-content: flex-end;
    align-items: center;
}

.hero__visual img {
    width: 100%;
    max-width: 360px;
    height: auto;
    opacity: 0.95;
    transition: opacity var(--duration-base) var(--ease),
                transform var(--duration-base) var(--ease);
}

.hero__visual img:hover {
    opacity: 1;
    transform: translateY(-4px);
}

/* ---------- Section shell ---------- */

.services,
.process,
.expect,
.contact {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--space-section) var(--gutter);
}

.services > h2,
.process > h2,
.expect > h2,
.contact > h2 {
    margin-bottom: var(--space-xl);
}

/* ---------- Services ---------- */

.services__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    align-items: start;
}

.service-card {
    padding: var(--space-lg) var(--space-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: var(--color-surface);
    transition: border-color var(--duration-base) var(--ease),
                transform var(--duration-base) var(--ease);
}

.service-card:nth-child(1) {
    margin-top: 0;
}

.service-card:nth-child(2) {
    margin-top: var(--space-lg);
}

.service-card:nth-child(3) {
    margin-top: calc(var(--space-lg) * 2);
}

.service-card:hover {
    border-color: var(--color-border-strong);
    transform: translateY(-4px);
}

.service-card h3 {
    margin-bottom: var(--space-sm);
}

/* ---------- Process ---------- */

.process__steps {
    counter-reset: step;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
}

.process__step {
    counter-increment: step;
    position: relative;
    border-top: 1px solid var(--color-border);
    padding: var(--space-lg) var(--space-md) 0 0;
}

.process__step::before {
    content: counter(step, decimal-leading-zero);
    position: absolute;
    top: calc(var(--space-md) * -1);
    left: 0;
    background-color: var(--color-bg);
    padding-right: var(--space-sm);
    font-family: var(--font-display);
    font-size: 28px;
    font-weight: var(--weight-light);
    line-height: 1;
    color: var(--color-muted);
    transition: color var(--duration-fast) var(--ease);
}

.process__step:hover::before {
    color: var(--color-text);
}

.process__step h3 {
    margin-bottom: var(--space-sm);
}

/* ---------- What to Expect ---------- */

.expect > p {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: var(--weight-light);
    line-height: 1.3;
    letter-spacing: -0.01em;
    color: var(--color-text);
    max-width: 36ch;
    margin-bottom: var(--space-lg);
}

.expect > p:last-child {
    margin-top: var(--space-xl);
    margin-bottom: 0;
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
    font-style: italic;
    font-size: var(--size-h3);
    color: var(--color-muted);
    max-width: 52ch;
}

/* ---------- Contact ---------- */

.contact {
    text-align: center;
}

.contact > h2 {
    font-size: clamp(48px, 7vw, 96px);
    margin-bottom: var(--space-lg);
}

.contact .btn {
    padding: 18px 40px;
    font-size: 15px;
    margin-bottom: var(--space-md);
}

.contact__email {
    font-size: var(--size-body);
    letter-spacing: 0.02em;
}

/* ---------- Reveal ---------- */

.fade-in {
    opacity: 0;
    transform: translateY(var(--reveal-translate));
    transition: opacity var(--duration-slow) var(--ease),
                transform var(--duration-slow) var(--ease);
    will-change: opacity, transform;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.service-card.fade-in { transition-delay: 0ms; }
.service-card:nth-child(2).fade-in { transition-delay: 100ms; }
.service-card:nth-child(3).fade-in { transition-delay: 200ms; }

.process__step.fade-in { transition-delay: 0ms; }
.process__step:nth-child(2).fade-in { transition-delay: 80ms; }
.process__step:nth-child(3).fade-in { transition-delay: 160ms; }
.process__step:nth-child(4).fade-in { transition-delay: 240ms; }

@media (prefers-reduced-motion: reduce) {
    .fade-in,
    .fade-in.visible {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

/* ---------- Mobile nav ---------- */

.nav__hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 6px;
    width: 32px;
    height: 32px;
    padding: 0;
    background: none;
    border: none;
    cursor: pointer;
}

.nav__hamburger span {
    display: block;
    width: 22px;
    height: 1px;
    background-color: var(--color-text);
    transition: transform var(--duration-fast) var(--ease),
                opacity var(--duration-fast) var(--ease),
                background-color var(--duration-fast) var(--ease);
}

.nav__hamburger:hover span {
    background-color: var(--color-accent);
}

.nav__hamburger.is-active span:nth-child(1) {
    transform: translateY(3.5px) rotate(45deg);
}

.nav__hamburger.is-active span:nth-child(2) {
    transform: translateY(-3.5px) rotate(-45deg);
}

.nav__overlay {
    position: fixed;
    inset: 0;
    z-index: 90;
    background-color: var(--color-bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--duration-base) var(--ease);
}

.nav__overlay.is-open {
    opacity: 1;
    pointer-events: auto;
}

.nav__overlay a {
    font-family: var(--font-display);
    font-size: 40px;
    font-weight: var(--weight-light);
    line-height: 1.1;
    letter-spacing: -0.01em;
    color: var(--color-text);
    transition: color var(--duration-fast) var(--ease);
}

.nav__overlay a:hover {
    color: var(--color-accent);
}

/* ---------- Responsive ---------- */

@media (max-width: 768px) {
    :root {
        --size-h1: 56px;
        --size-h2: 36px;
        --space-section: 80px;
    }

    .nav {
        padding: 0 var(--space-md);
    }

    .hero {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
        padding-top: calc(var(--nav-height) + var(--space-xl));
        min-height: auto;
    }

    .hero__visual {
        justify-content: flex-start;
        order: -1;
    }

    .hero__visual img {
        max-width: 200px;
    }

    .services__grid {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }

    .service-card:nth-child(1),
    .service-card:nth-child(2),
    .service-card:nth-child(3) {
        margin-top: 0;
    }

    .process__steps {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }

    .process__step {
        padding-right: 0;
    }

    .expect > p {
        font-size: var(--size-h3);
    }

    .expect > p:last-child {
        font-size: 20px;
    }

    .nav__cta {
        display: none;
    }

    .nav__hamburger {
        display: flex;
    }
}

@media (max-width: 540px) {
    :root {
        --size-h1: 44px;
        --size-h2: 32px;
        --gutter: 20px;
    }

    .btn {
        padding: 12px 22px;
        font-size: var(--size-meta);
    }

    .nav__overlay a {
        font-size: 32px;
    }
}