:root {
    --color-bg: #ffffff;
    --color-text: #111111;
    --color-muted: #6b6b6b;
    --color-warm: #e8e3dc;
    --color-warm-soft: #f4f1ed;
    --color-navy: #0f1b2d;
    --color-line: #e5e5e5;

    --font-serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, system-ui, sans-serif;

    --step-0: 1rem;
    --step-1: 1.125rem;
    --step-2: 1.5rem;
    --step-3: 2rem;
    --step-4: 2.75rem;
    --step-5: 3.75rem;
    --step-6: 5rem;

    --s-1: 0.5rem;
    --s-2: 1rem;
    --s-3: 1.5rem;
    --s-4: 2.5rem;
    --s-5: 4rem;
    --s-6: 6rem;
    --s-7: 9rem;

    --container: 1240px;
    --radius-sm: 2px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: var(--font-sans);
    font-size: var(--step-0);
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 {
    font-family: var(--font-serif);
    font-weight: 400;
    line-height: 1.1;
    margin: 0;
    letter-spacing: -0.01em;
}

h1 { font-size: var(--step-5); }
h2 { font-size: var(--step-4); }
h3 { font-size: var(--step-3); }
h4 { font-size: var(--step-2); }

p { margin: 0 0 var(--s-3); }
p:last-child { margin-bottom: 0; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 var(--s-3); }

/* ==== Nav ==== */
.nav {
    position: sticky;
    top: 0;
    z-index: 40;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid var(--color-line);
}
.nav__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--s-2) 0;
}
.brand {
    font-family: var(--font-serif);
    font-size: var(--step-2);
    letter-spacing: -0.01em;
    font-weight: 400;
}
.nav__links {
    display: flex;
    gap: var(--s-4);
    list-style: none;
    padding: 0;
    margin: 0;
}
.nav__links a {
    font-size: 0.9375rem;
    color: var(--color-text);
    transition: color 0.15s;
}
.nav__links a:hover { color: var(--color-muted); }
.nav__cta {
    display: inline-block;
    padding: 0.625rem 1.25rem;
    background: var(--color-text);
    color: #fff;
    font-size: 0.9375rem;
    transition: background 0.15s;
}
.nav__cta:hover { background: var(--color-navy); }

.nav__toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--s-2);
    margin: calc(var(--s-2) * -1);
}
.nav__toggle-bar {
    display: block;
    width: 22px;
    height: 1.5px;
    background: var(--color-text);
    margin: 5px 0;
}

@media (max-width: 820px) {
    .nav__links { display: none; }
    .nav__cta { display: none; }
    .nav__toggle { display: block; }
    .nav__links--open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #fff;
        padding: var(--s-3);
        gap: var(--s-2);
        border-bottom: 1px solid var(--color-line);
    }
    .nav__links--open + .nav__cta { display: inline-block; }
}

/* ==== Hero ==== */
.hero {
    position: relative;
    min-height: 82vh;
    display: flex;
    align-items: flex-end;
    color: #fff;
    overflow: hidden;
}
.hero__image {
    position: absolute;
    inset: 0;
    z-index: 0;
}
.hero__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.hero__image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0,0,0,0.1) 0%, rgba(0,0,0,0.55) 100%);
}
.hero__content {
    position: relative;
    z-index: 1;
    padding-top: var(--s-7);
    padding-bottom: var(--s-6);
    width: 100%;
}
.hero__kicker {
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    opacity: 0.85;
    margin-bottom: var(--s-3);
}
.hero__headline {
    font-size: clamp(2.5rem, 7vw, 5rem);
    color: #fff;
    max-width: 14ch;
    margin-bottom: var(--s-3);
}
.hero__sub {
    font-size: var(--step-1);
    max-width: 48ch;
    margin-bottom: var(--s-4);
    opacity: 0.95;
}
.hero__ctas {
    display: flex;
    gap: var(--s-2);
    flex-wrap: wrap;
}
.btn {
    display: inline-block;
    padding: 0.875rem 1.75rem;
    font-size: 0.9375rem;
    letter-spacing: 0.02em;
    transition: background 0.15s, color 0.15s;
    cursor: pointer;
    border: 1px solid transparent;
}
.btn--primary {
    background: #fff;
    color: var(--color-text);
}
.btn--primary:hover { background: var(--color-warm); }
.btn--ghost {
    border-color: rgba(255,255,255,0.6);
    color: #fff;
    background: transparent;
}
.btn--ghost:hover { border-color: #fff; background: rgba(255,255,255,0.08); }
.btn--dark {
    background: var(--color-text);
    color: #fff;
}
.btn--dark:hover { background: var(--color-navy); }

/* ==== Sections ==== */
.section { padding: var(--s-7) 0; }
.section--warm { background: var(--color-warm); }
.section--warm-soft { background: var(--color-warm-soft); }
.section--dark { background: var(--color-navy); color: #fff; }
.section--tight { padding: var(--s-5) 0; }

.section__eyebrow {
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-muted);
    margin-bottom: var(--s-3);
}
.section--dark .section__eyebrow { color: rgba(255,255,255,0.7); }
.section__title { margin-bottom: var(--s-4); max-width: 22ch; }
.section__lede {
    font-size: var(--step-1);
    max-width: 58ch;
    margin-bottom: var(--s-4);
}

/* ==== Brand statement ==== */
.statement {
    padding: var(--s-7) 0;
    text-align: center;
}
.statement__text {
    font-family: var(--font-serif);
    font-size: clamp(1.75rem, 3.5vw, 2.75rem);
    line-height: 1.3;
    max-width: 32ch;
    margin: 0 auto;
    letter-spacing: -0.005em;
}

/* ==== Services preview (home) ==== */
.services-preview {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    background: var(--color-line);
}
.services-preview__card {
    background: #fff;
    padding: var(--s-5);
}
.services-preview__image {
    aspect-ratio: 4/3;
    overflow: hidden;
    margin-bottom: var(--s-3);
}
.services-preview__image img {
    width: 100%; height: 100%; object-fit: cover;
    transition: transform 0.6s;
}
.services-preview__card:hover .services-preview__image img { transform: scale(1.03); }
.services-preview__card h3 { margin-bottom: var(--s-2); }
@media (max-width: 820px) {
    .services-preview { grid-template-columns: 1fr; }
}

/* ==== Process steps ==== */
.process-teaser {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--s-3);
    margin-top: var(--s-4);
}
.process-teaser__step {
    border-top: 1px solid var(--color-line);
    padding-top: var(--s-2);
}
.process-teaser__num {
    font-family: var(--font-serif);
    font-size: var(--step-2);
    color: var(--color-muted);
}
.process-teaser__name {
    margin-top: var(--s-2);
    font-family: var(--font-sans);
    font-size: var(--step-1);
}
@media (max-width: 820px) {
    .process-teaser { grid-template-columns: repeat(2, 1fr); }
}

/* ==== Process page detail ==== */
.process-detail { display: grid; gap: var(--s-6); }
.process-step {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--s-5);
    padding-top: var(--s-4);
    border-top: 1px solid var(--color-line);
}
.process-step__num {
    font-family: var(--font-serif);
    font-size: var(--step-5);
    color: var(--color-text);
    line-height: 1;
}
.process-step__body h3 { margin-bottom: var(--s-3); }
@media (max-width: 820px) {
    .process-step { grid-template-columns: 1fr; gap: var(--s-3); }
    .process-step__num { font-size: var(--step-4); }
}

/* ==== Featured project ==== */
.featured {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: var(--s-5);
    align-items: center;
}
.featured__image img { aspect-ratio: 4/3; object-fit: cover; }
.featured__meta {
    display: flex;
    gap: var(--s-3);
    font-size: 0.875rem;
    color: var(--color-muted);
    margin-bottom: var(--s-3);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}
.featured__title { margin-bottom: var(--s-3); }
@media (max-width: 820px) {
    .featured { grid-template-columns: 1fr; gap: var(--s-3); }
}

/* ==== Portfolio grid ==== */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--s-4);
}
.portfolio-card {
    display: block;
    transition: opacity 0.2s;
}
.portfolio-card:hover { opacity: 0.85; }
.portfolio-card__image {
    aspect-ratio: 4/5;
    overflow: hidden;
    margin-bottom: var(--s-2);
}
.portfolio-card__image img {
    width: 100%; height: 100%; object-fit: cover;
    transition: transform 0.6s;
}
.portfolio-card:hover .portfolio-card__image img { transform: scale(1.03); }
.portfolio-card__title {
    font-family: var(--font-serif);
    font-size: var(--step-2);
    margin-bottom: 0.25rem;
}
.portfolio-card__meta {
    font-size: 0.8125rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-muted);
}
@media (max-width: 820px) {
    .portfolio-grid { grid-template-columns: repeat(2, 1fr); gap: var(--s-3); }
}
@media (max-width: 520px) {
    .portfolio-grid { grid-template-columns: 1fr; }
}

/* ==== Portfolio detail ==== */
.project-hero {
    max-height: 75vh;
    overflow: hidden;
}
.project-hero img {
    width: 100%;
    height: 75vh;
    object-fit: cover;
}
.project-meta-row {
    display: flex;
    flex-wrap: wrap;
    gap: var(--s-4);
    padding: var(--s-4) 0;
    border-bottom: 1px solid var(--color-line);
    font-size: 0.875rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-muted);
}
.project-meta-row span strong {
    display: block;
    color: var(--color-text);
    font-weight: 400;
    letter-spacing: 0;
    text-transform: none;
    font-size: var(--step-0);
    margin-top: 0.25rem;
}
.project-body {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--s-6);
    padding: var(--s-6) 0;
}
.project-body__title h1 { font-size: var(--step-4); }
.project-body__copy {
    font-size: var(--step-1);
    line-height: 1.7;
}
.project-gallery {
    display: grid;
    gap: var(--s-3);
    padding-bottom: var(--s-6);
}
.project-gallery img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
@media (max-width: 820px) {
    .project-body { grid-template-columns: 1fr; gap: var(--s-3); padding: var(--s-5) 0; }
    .project-hero img { height: 50vh; }
}

/* ==== Contact ==== */
.contact-grid {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: var(--s-6);
    padding: var(--s-5) 0 var(--s-7);
}
@media (max-width: 820px) {
    .contact-grid { grid-template-columns: 1fr; gap: var(--s-5); }
}
.form-field { margin-bottom: var(--s-3); }
.form-field label {
    display: block;
    font-size: 0.8125rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-muted);
    margin-bottom: 0.5rem;
}
.form-field input,
.form-field select,
.form-field textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    font-family: var(--font-sans);
    font-size: var(--step-0);
    color: var(--color-text);
    background: #fff;
    border: 1px solid var(--color-line);
    border-radius: 0;
    transition: border-color 0.15s;
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
    outline: none;
    border-color: var(--color-text);
}
.form-field textarea { min-height: 160px; resize: vertical; }
.form-field--error input,
.form-field--error select,
.form-field--error textarea {
    border-color: #a00020;
}
.form-error {
    font-size: 0.8125rem;
    color: #a00020;
    margin-top: 0.375rem;
}

.banner-success {
    background: var(--color-warm);
    padding: var(--s-3) var(--s-4);
    margin-bottom: var(--s-4);
    border-left: 3px solid var(--color-navy);
}
.banner-success h4 { margin-bottom: 0.25rem; }

.contact-info {
    border-left: 1px solid var(--color-line);
    padding-left: var(--s-4);
}
.contact-info h4 {
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-muted);
    margin-bottom: var(--s-2);
    margin-top: var(--s-4);
}
.contact-info h4:first-child { margin-top: 0; }
.contact-info p { font-size: var(--step-0); }
@media (max-width: 820px) {
    .contact-info { border-left: none; padding-left: 0; border-top: 1px solid var(--color-line); padding-top: var(--s-4); }
}

/* ==== Services page ==== */
.service {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--s-6);
    padding: var(--s-6) 0;
    align-items: center;
    border-bottom: 1px solid var(--color-line);
}
.service:last-child { border-bottom: none; }
.service:nth-child(even) .service__image { order: 2; }
.service__image img { aspect-ratio: 4/5; object-fit: cover; }
.service__body ul {
    margin: var(--s-3) 0;
    padding: 0;
    list-style: none;
}
.service__body li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--color-line);
}
.service__body li:last-child { border-bottom: none; }
@media (max-width: 820px) {
    .service { grid-template-columns: 1fr; gap: var(--s-3); padding: var(--s-5) 0; }
    .service:nth-child(even) .service__image { order: 0; }
}

/* ==== About page ==== */
.about-lede {
    font-family: var(--font-serif);
    font-size: clamp(1.75rem, 3.5vw, 2.75rem);
    line-height: 1.3;
    max-width: 32ch;
    margin-bottom: var(--s-5);
}
.about-section {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--s-5);
    padding: var(--s-5) 0;
    border-top: 1px solid var(--color-line);
}
.about-section h3 { font-size: var(--step-3); }
@media (max-width: 820px) {
    .about-section { grid-template-columns: 1fr; gap: var(--s-2); padding: var(--s-4) 0; }
}

/* ==== Legal page ==== */
.legal { max-width: 68ch; padding: var(--s-6) 0; }
.legal h2 { font-size: var(--step-3); margin: var(--s-4) 0 var(--s-2); }
.legal h3 { font-size: var(--step-2); margin: var(--s-3) 0 var(--s-2); }

/* ==== Enquiry band ==== */
.enquiry-band {
    background: var(--color-navy);
    color: #fff;
    padding: var(--s-6) 0;
    text-align: center;
}
.enquiry-band h2 {
    color: #fff;
    max-width: 18ch;
    margin: 0 auto var(--s-3);
}
.enquiry-band p { max-width: 42ch; margin: 0 auto var(--s-4); opacity: 0.85; }
.enquiry-band .btn {
    background: #fff;
    color: var(--color-navy);
}
.enquiry-band .btn:hover { background: var(--color-warm); }

/* ==== Footer ==== */
.footer {
    background: var(--color-text);
    color: #fff;
    padding: var(--s-5) 0 var(--s-3);
}
.footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--s-4);
    margin-bottom: var(--s-4);
}
.footer__brand {
    font-family: var(--font-serif);
    font-size: var(--step-3);
    margin-bottom: var(--s-2);
}
.footer__tagline {
    opacity: 0.7;
    font-size: 0.9375rem;
    max-width: 32ch;
}
.footer h4 {
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    opacity: 0.7;
    margin-bottom: var(--s-2);
}
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer li { padding: 0.25rem 0; }
.footer li a { opacity: 0.85; font-size: 0.9375rem; }
.footer li a:hover { opacity: 1; }
.footer__base {
    border-top: 1px solid rgba(255,255,255,0.12);
    padding-top: var(--s-2);
    font-size: 0.8125rem;
    opacity: 0.6;
    display: flex;
    justify-content: space-between;
}
@media (max-width: 820px) {
    .footer__grid { grid-template-columns: 1fr; gap: var(--s-3); }
    .footer__base { flex-direction: column; gap: var(--s-1); }
}

/* ==== Utilities ==== */
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.muted { color: var(--color-muted); }
.text-center { text-align: center; }

/* ==== Reveal on scroll (motion-safe: content always renders) ==== */
.reveal { opacity: 1; transform: none; }
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        transition: opacity 0.6s ease, transform 0.6s ease;
    }
}