/* === RESET === */
* { margin: 0; padding: 0; box-sizing: border-box; }

/* === TOKENS === */
:root {
    --black: #0A0A0A;
    --near-black: #111111;
    --surface: #181816;
    --surface-light: #222220;
    --border: #2A2A28;

    --text-warm: #E8E4DF;
    --text-secondary: #8A857F;
    --text-muted: #6B6860;

    --off-white: #F2EFEA;
    --warm-white: #FAF9F7;
    --warm-mid: #B8B2A9;

    --text-on-light-strong: #1A1816;
    --text-on-light: #3A3632;
    --text-on-light-soft: #5A5750;
    --border-light: #D4D0CB;

    --red: #E23636;
    --red-hover: #CC2E2E;
    --red-glow: #FF4040;
    --red-label: #FF5050;
    --red-subtle: rgba(226, 54, 54, 0.08);

    --display: 'Bricolage Grotesque', sans-serif;
    --body: 'Inter', sans-serif;
}

/* === BASE === */
html {
    scroll-behavior: smooth;
}

body {
    background: var(--black);
    color: var(--text-warm);
    font-family: var(--body);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    line-height: 1.6;
    overflow-x: hidden;
}

/* === NAV === */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 20px 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: background 0.3s ease, backdrop-filter 0.3s ease;
}

nav.scrolled {
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.nav-logo {
    font-family: var(--display);
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1;
    text-decoration: none;
    color: var(--text-warm);
}

.nav-logo .prefix {
    color: var(--red);
    font-weight: 800;
    margin-right: 0.08em;
}

.nav-logo .variable-word {
    font-weight: 500;
    color: var(--warm-mid);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.nav-links a:hover {
    color: var(--text-warm);
}

.nav-links a.nav-cta {
    color: var(--red-label);
}

.nav-links a.nav-cta:hover {
    color: var(--red-glow);
}

.nav-links a.nav-current {
    color: var(--text-warm);
}

/* === MOBILE HAMBURGER === */
.nav-hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 101;
}

.nav-hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-warm);
    margin: 5px 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-hamburger.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-hamburger.open span:nth-child(2) {
    opacity: 0;
}

.nav-hamburger.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* === SHARED SECTION STYLES === */
.section-label {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--red-label);
    margin-bottom: 16px;
}

.section-heading {
    font-family: var(--display);
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.15;
    color: var(--text-warm);
    margin-bottom: 16px;
}

.section-intro {
    font-size: 17px;
    font-weight: 300;
    line-height: 1.7;
    color: var(--text-secondary);
    max-width: 560px;
    margin-bottom: 64px;
}

/* === GRAIN TEXTURE OVERLAYS === */
.grain {
    position: relative;
    overflow: hidden;
}

.grain::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
    background-size: 256px;
    pointer-events: none;
    opacity: 0.5;
}

.grain-fine {
    position: relative;
}

.grain-fine::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.025'/%3E%3C/svg%3E");
    background-size: 256px;
    pointer-events: none;
    opacity: 0.6;
}

/* === SPECIALIST CARD GRID (three-column team/lens cards) === */
.specialist-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
}

.specialist-card {
    padding: 48px 40px;
    transition: border-color 0.3s ease, background 0.3s ease;
    position: relative;
}

.specialist-card::after {
    content: '';
    position: absolute;
    top: 48px;
    bottom: 48px;
    right: 0;
    width: 1px;
}

.specialist-card:last-child::after {
    display: none;
}

.specialist-card:hover {
    background: rgba(226, 54, 54, 0.03);
}

.specialist-card-label {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.specialist-card h3 {
    font-family: var(--display);
    letter-spacing: -0.01em;
    margin-bottom: 20px;
    line-height: 1.2;
}

.specialist-card h3 .prefix {
    color: var(--red);
    font-weight: 800;
    margin-right: 0.08em;
}

.specialist-card h3 .fixed {
    font-weight: 700;
}

.specialist-card h3 .variable {
    font-weight: 500;
}

/* Dark background variant (homepage) */
.specialist-grid--dark .specialist-card {
    border-top: 1px solid var(--border);
}

.specialist-grid--dark .specialist-card::after {
    background: var(--border);
}

.specialist-grid--dark .specialist-card:hover {
    border-top-color: var(--red);
}

.specialist-grid--dark .specialist-card h3 {
    font-size: clamp(22px, 2.2vw, 28px);
}

.specialist-grid--dark .specialist-card h3 .fixed {
    color: var(--text-warm);
}

.specialist-grid--dark .specialist-card h3 .variable {
    color: var(--warm-mid);
}

.specialist-grid--dark .specialist-card-body {
    font-size: 15px;
    font-weight: 400;
    line-height: 1.7;
    color: var(--text-secondary);
}

/* Light background variant (how-it-works, pricing) */
.specialist-grid--light .specialist-card {
    border-top: 3px solid transparent;
}

.specialist-grid--light .specialist-card::after {
    background: var(--border-light);
}

.specialist-grid--light .specialist-card:hover {
    border-top-color: var(--red);
}

.specialist-grid--light .specialist-card h3 {
    font-size: clamp(24px, 2.5vw, 30px);
}

.specialist-grid--light .specialist-card h3 .fixed {
    color: var(--black);
}

.specialist-grid--light .specialist-card h3 .variable {
    color: var(--text-muted);
}

.specialist-grid--light .specialist-card-body {
    font-size: 15px;
    font-weight: 400;
    line-height: 1.7;
    color: var(--text-muted);
}

.specialist-card-uses {
    list-style: none;
}

.specialist-card-uses li {
    font-size: 15px;
    font-weight: 400;
    line-height: 1.6;
    color: var(--text-muted);
    padding: 8px 0;
    border-bottom: 1px solid rgba(0,0,0,0.06);
}

.specialist-card-uses li:last-child {
    border-bottom: none;
}

@media (max-width: 900px) {
    .specialist-grid {
        grid-template-columns: 1fr;
    }

    .specialist-card::after {
        display: none;
    }

    .specialist-grid--dark .specialist-card {
        border-top: 1px solid var(--border);
    }

    .specialist-grid--light .specialist-card {
        padding: 32px 24px;
        border-top: 1px solid var(--border-light);
    }

    .specialist-grid--light .specialist-card:hover {
        border-top-color: var(--border-light);
    }
}

/* === CTA LINK (red uppercase arrow pattern) === */
.cta-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--red-label);
    text-decoration: none;
    transition: color 0.25s ease;
}

.cta-link:hover {
    color: var(--red-glow);
}

.cta-link .arrow {
    transition: transform 0.25s ease;
}

.cta-link:hover .arrow {
    transform: translateX(4px);
}

/* === UTILITY CLASSES === */
.section-label--red {
    color: var(--red);
}

.text-center {
    text-align: center;
}

.img-profile {
    width: 100%;
    height: auto;
    object-fit: contain;
    border-radius: 8px;
    mix-blend-mode: lighten;
}

.link-subtle {
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border);
    text-decoration: none;
}

.link-red {
    color: var(--red);
    font-weight: 500;
    text-decoration: none;
    border-bottom: 1px solid var(--red);
}

/* === CONTACT (shared across pages) === */
.contact {
    background: var(--off-white);
    padding: 120px 48px;
}

.contact-inner {
    max-width: 720px;
    margin: 0 auto;
    text-align: center;
}

.contact .section-label {
    color: var(--red);
}

.contact h2 {
    font-family: var(--display);
    font-size: clamp(36px, 5vw, 56px);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.1;
    color: var(--black);
    margin-bottom: 20px;
}

.contact-sub {
    font-size: 17px;
    font-weight: 400;
    line-height: 1.7;
    color: var(--text-muted);
    margin-bottom: 48px;
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
}

.contact-email {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-family: var(--display);
    font-size: clamp(20px, 3vw, 28px);
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--black);
    text-decoration: none;
    padding-bottom: 4px;
    border-bottom: 2px solid var(--red);
    transition: all 0.2s ease;
}

.contact-email:hover {
    color: var(--red);
}

.contact-or {
    font-size: 14px;
    color: var(--text-muted);
    margin: 32px 0;
}

.contact-form {
    text-align: left;
    max-width: 480px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    font-family: var(--body);
    font-size: 15px;
    color: var(--black);
    background: var(--warm-white);
    border: 1px solid #DAD7D2;
    border-radius: 4px;
    outline: none;
    transition: border-color 0.2s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--red);
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

.form-submit {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--body);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.06em;
    color: white;
    background: var(--red);
    border: none;
    padding: 16px 32px;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.2s ease;
}

.form-submit:hover {
    background: var(--red-hover);
}

/* === FOOTER === */
footer {
    background: var(--black);
    padding: 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.footer-left {
    display: flex;
    align-items: center;
    gap: 24px;
}

.footer-logo {
    font-family: var(--display);
    font-size: 18px;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-secondary);
}

.footer-logo .prefix {
    color: var(--red);
    font-weight: 800;
    margin-right: 0.08em;
    opacity: 0.6;
}

.footer-right {
    display: flex;
    align-items: center;
    gap: 24px;
}

.footer-links {
    display: flex;
    align-items: center;
    gap: 20px;
}

.footer-links a {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-links a:hover {
    color: var(--text-secondary);
}

.footer-copy {
    font-size: 13px;
    color: var(--text-muted);
}

/* === SCROLL ANIMATIONS === */
.reveal {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* === RESPONSIVE (shared) === */
@media (max-width: 900px) {
    nav { padding: 16px 24px; }
    .nav-links { gap: 20px; }
    .contact { padding: 80px 24px; }
    footer {
        padding: 32px 24px;
        flex-direction: column;
        align-items: flex-start;
        gap: 24px;
    }
    .footer-right {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
}

@media (max-width: 600px) {
    .nav-hamburger { display: block; }

    .nav-links {
        position: fixed;
        top: 0;
        right: 0;
        width: 260px;
        height: 100vh;
        background: rgba(10, 10, 10, 0.97);
        backdrop-filter: blur(24px);
        -webkit-backdrop-filter: blur(24px);
        flex-direction: column;
        align-items: flex-start;
        justify-content: flex-start;
        padding: 80px 32px 48px;
        gap: 0;
        transform: translateX(100%);
        transition: transform 0.3s ease;
        z-index: 100;
    }

    .nav-links.open {
        transform: translateX(0);
    }

    .nav-links a {
        font-size: 15px;
        padding: 16px 0;
        width: 100%;
        border-bottom: 1px solid var(--border);
    }

    .nav-links a:last-child {
        border-bottom: none;
        margin-top: 16px;
    }

    .section-heading { font-size: 28px; }
}

/* === CASE STUDY PAGES === */
.cs-hero {
    padding: 160px 48px 100px;
    max-width: 1200px;
    margin: 0 auto;
}

.cs-hero h1 {
    font-family: var(--display);
    font-size: clamp(42px, 6vw, 72px);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.05;
    color: var(--text-warm);
    max-width: 860px;
    margin-bottom: 32px;
}

.cs-hero-sub {
    font-size: clamp(17px, 2vw, 20px);
    font-weight: 300;
    line-height: 1.6;
    color: var(--text-secondary);
    max-width: 640px;
    margin-bottom: 40px;
}

.cs-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.cs-tag {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    padding: 8px 16px;
    border: 1px solid var(--border);
    border-radius: 4px;
}

.cs-challenge {
    background: var(--off-white);
    padding: 120px 48px;
}

.cs-challenge-inner {
    max-width: 720px;
    margin: 0 auto;
}

.cs-challenge .section-heading {
    color: var(--text-on-light-strong);
}

.cs-challenge p {
    font-size: 17px;
    font-weight: 400;
    line-height: 1.8;
    color: var(--text-on-light);
    margin-bottom: 24px;
}

.cs-challenge p:last-child {
    margin-bottom: 0;
}

.cs-challenge p strong {
    font-weight: 600;
    color: var(--text-on-light-strong);
}

.cs-approach {
    background: var(--near-black);
    padding: 120px 48px;
}

.cs-approach-inner {
    max-width: 1200px;
    margin: 0 auto;
}

.cs-approach-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    margin-top: 64px;
}

.cs-approach-left {
    max-width: 520px;
}

.cs-move {
    margin-bottom: 48px;
}

.cs-move:last-child {
    margin-bottom: 0;
}

.cs-move-label {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.cs-move h3 {
    font-family: var(--display);
    font-size: 24px;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--text-warm);
    margin-bottom: 12px;
}

.cs-move p {
    font-size: 15px;
    font-weight: 400;
    line-height: 1.7;
    color: var(--text-secondary);
}

.cs-approach-right {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.cs-pullquote {
    font-family: var(--display);
    font-size: clamp(26px, 3vw, 36px);
    font-weight: 600;
    font-style: italic;
    letter-spacing: -0.02em;
    line-height: 1.3;
    color: var(--text-warm);
    border-left: 3px solid var(--red);
    padding-left: 32px;
}

.cs-build {
    background: var(--black);
    padding: 120px 48px;
}

.cs-build-inner {
    max-width: 1200px;
    margin: 0 auto;
}

.cs-build-iframe {
    width: 100%;
    border-radius: 8px;
    overflow: hidden;
    background: var(--surface);
    aspect-ratio: 16 / 9;
    position: relative;
    margin-top: 64px;
}

.cs-build-iframe iframe {
    width: 142.85%;
    height: 142.85%;
    border: none;
    pointer-events: none;
    transform: scale(0.7);
    transform-origin: top left;
}

.cs-deliverables {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 48px;
}

.cs-deliverable {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 8px 16px;
    background: var(--surface);
    border-radius: 4px;
    border: 1px solid var(--border);
}

.cs-response {
    background: var(--near-black);
    padding: 120px 48px;
}

.cs-response-inner {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.cs-quote {
    font-family: var(--display);
    font-size: clamp(32px, 5vw, 56px);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.1;
    color: var(--text-warm);
    margin-bottom: 32px;
}

.cs-quote-mark {
    color: var(--red);
    display: block;
    font-size: 72px;
    line-height: 0.5;
    margin-bottom: 24px;
}

.cs-attribution {
    font-size: 15px;
    font-weight: 400;
    color: var(--text-secondary);
    line-height: 1.6;
}

.cs-attribution strong {
    color: var(--text-warm);
    font-weight: 600;
}

@media (max-width: 900px) {
    .cs-hero { padding: 140px 24px 80px; }
    .cs-challenge { padding: 80px 24px; }
    .cs-approach { padding: 80px 24px; }
    .cs-build { padding: 80px 24px; }
    .cs-response { padding: 80px 24px; }

    .cs-approach-content {
        grid-template-columns: 1fr;
        gap: 48px;
    }
}

@media (max-width: 600px) {
    .cs-hero h1 { font-size: 36px; }
    .cs-quote { font-size: 28px; }
}

/* === LEGAL PAGES === */
.legal-page {
    padding: 160px 48px 120px;
    max-width: 720px;
    margin: 0 auto;
}

.legal-page h1 {
    font-family: var(--display);
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-warm);
    margin-bottom: 16px;
}

.legal-page .legal-updated {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 48px;
}

.legal-page h2 {
    font-family: var(--display);
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--text-warm);
    margin-top: 48px;
    margin-bottom: 16px;
}

.legal-page p {
    font-size: 16px;
    font-weight: 400;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.legal-page a {
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border);
    text-decoration: none;
}

.legal-page dt {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--text-muted);
    margin-bottom: 8px;
    margin-top: 32px;
}

.legal-page dt:first-of-type {
    margin-top: 0;
}

.legal-page dd {
    font-size: 16px;
    font-weight: 400;
    line-height: 1.7;
    color: var(--text-secondary);
}

.legal-page ul {
    list-style: none;
    padding: 0;
    margin-bottom: 16px;
}

.legal-page ul li {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-secondary);
    padding-left: 20px;
    position: relative;
}

.legal-page ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 12px;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--text-muted);
}

@media (max-width: 600px) {
    .legal-page { padding: 140px 24px 80px; }
}