/* ============================================
   AD ASTRUM — main.css
   Dark, animation-heavy, tiwis.fr-inspired
   ============================================ */

/* --- @font-face --- */
@font-face {
    font-family: 'Mostra Nuova';
    src: url('../fonts/MostraNuova-Bold.woff2') format('woff2'),
         url('../fonts/MostraNuova-Bold.woff') format('woff');
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}

/* --- CSS Variables --- */
:root {
    --color-bg: #000;
    --color-surface: #0a0a0a;
    --color-text: #fff;
    --color-muted: #888;
    --color-white: #fff;
    --font-heading: 'Mostra Nuova', Helvetica, Arial, sans-serif;
    --font-body: Helvetica, Arial, sans-serif;
    --ease-smooth: cubic-bezier(0.77, 0, 0.175, 1);
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
.lenis.lenis-smooth [data-lenis-prevent] { overscroll-behavior: contain; }
.lenis.lenis-stopped { overflow: hidden; }
body {
    font-family: var(--font-body);
    background: var(--color-bg);
    color: var(--color-text);
    overflow-x: hidden;
    line-height: 1.6;
}

/* --- Animated silk/gradient background --- */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background:
        radial-gradient(ellipse 80% 50% at 20% 50%, rgba(30, 30, 40, 0.4) 0%, transparent 70%),
        radial-gradient(ellipse 60% 80% at 80% 30%, rgba(20, 25, 35, 0.3) 0%, transparent 70%);
    background-size: 200% 200%, 200% 200%;
    animation: silkDrift 20s ease-in-out infinite alternate;
}
@keyframes silkDrift {
    0%   { background-position: 0% 0%, 100% 0%; }
    50%  { background-position: 30% 60%, 70% 40%; }
    100% { background-position: 60% 30%, 40% 70%; }
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; color: inherit; }

/* --- Typography --- */
.font-heading { font-family: var(--font-heading); font-weight: 700; text-transform: uppercase; }
.heading-xl {
    font-family: var(--font-heading);
    font-weight: 700;
    text-transform: uppercase;
    font-size: clamp(3rem, 5.556vw, 6rem);
    line-height: 1.05;
    letter-spacing: -0.02em;
}
.heading-lg {
    font-family: var(--font-heading);
    font-weight: 700;
    text-transform: uppercase;
    font-size: clamp(2rem, 3.5vw, 4rem);
    line-height: 1.1;
}

/* --- Navigation --- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 0 clamp(1.5rem, 4vw, 3rem);
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: background 0.3s ease, backdrop-filter 0.3s ease;
}
.nav.scrolled {
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
}
.nav__logo {
    height: 36px;
    width: auto;
    opacity: 0;
    transition: opacity 0.25s ease;
}
.nav__logo.visible { opacity: 1; }

/* Fixed logo that transforms from hero-size to nav-size */
.site-logo {
    position: fixed;
    z-index: 1001;
    will-change: width, top, left;
    pointer-events: none;
    height: auto;
    visibility: hidden;
}
.nav__logo-space {
    display: block;
    width: 120px;
    height: 36px;
}
.nav__links {
    display: flex;
    gap: 2rem;
    align-items: center;
}
.nav__links a {
    font-size: 0.875rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-muted);
    transition: color 0.3s ease;
}
.nav__links a:hover { color: var(--color-white); }

/* Burger */
.burger {
    display: none;
    flex-direction: column;
    gap: 6px;
    width: 28px;
    z-index: 1100;
    padding: 4px 0;
}
.burger span {
    display: block;
    height: 2px;
    background: var(--color-white);
    border-radius: 2px;
    transition: transform 0.4s var(--ease-smooth), opacity 0.3s ease;
}
.burger.active span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.burger.active span:nth-child(2) { opacity: 0; }
.burger.active span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* Mobile Nav Panel */
.nav-panel {
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    height: 100vh;
    height: 100dvh;
    background: var(--color-bg);
    z-index: 950;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    transform: translateX(100%);
    transition: transform 0.6s var(--ease-smooth);
}
.nav-panel.open { transform: translateX(0); }
.nav-panel a {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 6vw, 3.5rem);
    text-transform: uppercase;
    color: var(--color-white);
    letter-spacing: 0.05em;
}

/* --- Z-index layering (above body::before gradient) --- */
.hero, .approach, .horizontal-section, .services, .marquee, .cases, .footer,
.page-hero, .legal-content, .contact-section, .contact-info, .support-grid, .help-section {
    position: relative;
    z-index: 1;
}
.nav { z-index: 1000; }

/* --- Hero Section --- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: clamp(8rem, 12vh, 12rem) clamp(1.5rem, 4vw, 3rem) 5vh;
    overflow: hidden;
    background: var(--color-bg);
}
.hero__tagline-wrap {
    position: absolute;
    top: clamp(8rem, 12vh, 12rem);
    right: clamp(1.5rem, 4vw, 3rem);
    width: 40vw;
}
.hero__tagline {
    font-family: var(--font-body);
    font-size: 2.083vw;
    font-weight: 300;
    line-height: 1.1;
    color: var(--color-text);
}
.hero__cta {
    display: inline-block;
    padding: 1rem 2.5rem;
    border: 1px solid rgba(255,255,255,0.3);
    font-family: var(--font-heading);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-white);
    transition: background 0.3s ease, border-color 0.3s ease;
    align-self: flex-end;
    margin-top: auto;
}
.hero__cta:hover {
    background: var(--color-white);
    color: var(--color-bg);
    border-color: var(--color-white);
}

/* --- Manifesto text (tiwis-inspired: large, light weight) --- */
.manifesto {
    font-family: var(--font-body);
    font-size: 3.5vw;
    font-weight: 300;
    line-height: 0.95;
    letter-spacing: 0.083vw;
    color: var(--color-text);
}

/* --- Approach Section (tiwis-inspired, centered layout) --- */
.approach {
    padding: 8vw 8vw 0;
    background: var(--color-bg);
}
.approach__inner {
    max-width: 1400px;
    margin: 0 auto;
}
.approach-block {
    margin-bottom: 16vw;
}
.approach-block:last-child {
    margin-bottom: 0;
    padding-bottom: 8vw;
}

/* Horizontal divider line (animates width 0→100%) */
.h-line {
    background: rgba(255, 255, 255, 0.2);
    width: 0;
    height: 1px;
}

/* 12-column grid — centered, not edge-to-edge */
.approach-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 1.389vw;
    padding-top: 2.5rem;
}
.approach-grid__tag {
    grid-column: 1 / 5;
}
.approach-grid__text {
    grid-column: 5 / 13;
}

/* Tag label (tiwis: .694vw, uppercase) */
.div-hide {
    overflow: hidden;
}
.split-tag {
    display: block;
    font-family: var(--font-body);
    font-size: 0.85vw;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05vw;
    line-height: 1.4;
    color: var(--color-text);
}

/* --- Horizontal Scroll Section --- */
.horizontal-section {
    position: relative;
    overflow: hidden;
    background: transparent;
}
.horizontal-wrapper {
    display: flex;
    width: max-content;
    will-change: transform;
}
.horizontal-scale {
    transform: scale(0);
    transform-origin: 100% 100%;
    position: relative;
    z-index: 1;
}
.h-tile {
    width: 50vw;
    height: 100vh;
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
    padding: clamp(2.5rem, 3.5vw, 4rem);
}
.h-tile--white {
    background: #fff;
    color: #000;
}
.h-tile--dark {
    background: var(--color-bg);
    width: 25vw;
    display: flex;
    justify-content: center;
    align-items: center;
}
/* Brief description — upper left, absolutely positioned */
.h-tile__brief {
    position: absolute;
    top: clamp(6rem, 8vw, 8rem);
    left: clamp(2.5rem, 3.5vw, 4rem);
    max-width: 22vw;
    font-size: clamp(0.8rem, 0.95vw, 1.05rem);
    font-weight: 400;
    line-height: 1.55;
    color: #444;
}
/* Bottom group — subtitle + title, pinned bottom-left */
.h-tile__bottom {
    position: absolute;
    bottom: clamp(2.5rem, 3.5vw, 4rem);
    left: clamp(2.5rem, 3.5vw, 4rem);
    right: clamp(2.5rem, 3.5vw, 4rem);
}
.h-tile__subtitle {
    display: block;
    font-size: clamp(0.7rem, 0.8vw, 0.9rem);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #999;
    margin-bottom: 0.75rem;
}
.h-tile__title {
    display: block;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: clamp(2.5rem, 5.5vw, 7rem);
    text-transform: uppercase;
    line-height: 0.9;
    color: #000;
    margin: 0;
    letter-spacing: -0.02em;
}
.h-tile__icon {
    width: 80px;
    height: 80px;
}
.h-tile__icon svg {
    width: 100%;
    height: 100%;
    stroke: var(--color-white);
    fill: none;
    stroke-width: 1;
}
.h-tile__icon svg path,
.h-tile__icon svg circle,
.h-tile__icon svg line,
.h-tile__icon svg rect {
    stroke-dasharray: 500;
    stroke-dashoffset: 500;
}

/* --- Services Section --- */
.services {
    background: var(--color-white);
    color: #000;
    padding: clamp(4rem, 10vw, 8rem) clamp(1.5rem, 4vw, 3rem);
}
.services__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}
.services__title {
    text-align: center;
    margin-bottom: clamp(3rem, 6vw, 5rem);
}
.service-card {
    padding: clamp(2rem, 3vw, 3rem);
    border: 1px solid #e0e0e0;
    border-radius: 4px;
}
.service-card__icon {
    width: 48px;
    height: 48px;
    margin-bottom: 1.5rem;
}
.service-card__icon svg {
    width: 100%;
    height: 100%;
    stroke: #000;
    fill: none;
    stroke-width: 1.5;
}
.service-card__icon svg path,
.service-card__icon svg circle,
.service-card__icon svg line,
.service-card__icon svg rect,
.service-card__icon svg polyline {
    stroke-dasharray: 300;
    stroke-dashoffset: 300;
}
.service-card__title {
    font-family: var(--font-heading);
    font-size: clamp(1.25rem, 2vw, 1.75rem);
    text-transform: uppercase;
    margin-bottom: 0.75rem;
    line-height: 1.2;
}
.service-card__desc {
    font-size: 0.9375rem;
    color: #555;
    line-height: 1.6;
}

/* --- Marquee --- */
.marquee {
    padding: clamp(2rem, 4vw, 4rem) 0;
    overflow: hidden;
    background: var(--color-bg);
}
.marquee__track {
    display: flex;
    width: max-content;
    animation: scroll-marquee 12s linear infinite;
}
.marquee__item {
    display: flex;
    align-items: center;
    gap: clamp(1rem, 2vw, 2rem);
    padding: 0 clamp(1rem, 2vw, 2rem);
    white-space: nowrap;
}
.marquee__text {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: clamp(4rem, 8vw, 10rem);
    text-transform: uppercase;
    color: var(--color-white);
    line-height: 1;
}
.marquee__star {
    width: clamp(1.5rem, 3vw, 3rem);
    height: clamp(1.5rem, 3vw, 3rem);
    flex-shrink: 0;
}
.marquee__star svg {
    width: 100%;
    height: 100%;
    fill: var(--color-white);
}
@keyframes scroll-marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* --- Case Studies --- */
.cases {
    padding: clamp(4rem, 10vw, 8rem) clamp(1.5rem, 4vw, 3rem);
    background: var(--color-bg);
}
.cases__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    max-width: 1400px;
    margin: 0 auto;
}
.case-card {
    position: relative;
    aspect-ratio: 4/5;
    border-radius: 4px;
    overflow: hidden;
    clip-path: inset(30%);
    cursor: pointer;
}
.case-card__bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    transition: transform 0.6s ease;
}
.case-card:hover .case-card__bg { transform: scale(1.05); }
.case-card__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.2) 50%, transparent 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: clamp(1.5rem, 3vw, 2.5rem);
}
.case-card__category {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-muted);
    margin-bottom: 0.5rem;
}
.case-card__name {
    font-family: var(--font-heading);
    font-size: clamp(1.25rem, 2vw, 1.75rem);
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}
.case-card__desc {
    font-size: 0.875rem;
    color: var(--color-muted);
    line-height: 1.5;
}

/* --- Footer --- */
.footer {
    background: var(--color-surface);
    padding: clamp(4rem, 8vw, 6rem) clamp(1.5rem, 4vw, 3rem) 2rem;
}
.footer__inner {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
}
.footer__logo {
    height: 40px;
    width: auto;
    margin-bottom: 1rem;
}
.footer__tagline {
    font-size: 0.875rem;
    color: var(--color-muted);
    line-height: 1.6;
    max-width: 400px;
}
.footer__heading {
    font-family: var(--font-heading);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1.5rem;
    color: var(--color-white);
}
.footer__links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}
.footer__links a {
    font-size: 0.875rem;
    color: var(--color-muted);
    transition: color 0.3s ease;
}
.footer__links a:hover { color: var(--color-white); }
.footer__address {
    font-size: 0.875rem;
    color: var(--color-muted);
    line-height: 1.6;
    margin-top: 1rem;
}
.footer__bottom {
    max-width: 1200px;
    margin: 3rem auto 0;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    text-align: center;
    font-size: 0.8125rem;
    color: var(--color-muted);
}

/* --- About Page (white background) --- */
.about {
    background: #fff;
    color: #000;
}
.about::before {
    display: none;
}
.about .nav.scrolled {
    background: rgba(255, 255, 255, 0.9);
}
.about .nav a,
.about .nav__links a {
    color: #999;
}
.about .nav__links a:hover {
    color: #000;
}
.about .burger span {
    background: #000;
}

/* About — top section: 2-column */
.about-hero {
    padding: clamp(10rem, 14vh, 14rem) clamp(2rem, 6vw, 6rem) clamp(4rem, 8vw, 8rem);
    max-width: 1300px;
    margin: 0 auto;
}
.about-hero__grid {
    display: grid;
    grid-template-columns: 7fr 5fr;
    gap: clamp(3rem, 6vw, 7rem);
    align-items: start;
}
.about-hero__text {
    padding-top: 2rem;
}
.about-hero__label {
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: #999;
    margin-bottom: 1.5rem;
}
.about-hero__name {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 4vw, 4rem);
    font-weight: 700;
    text-transform: uppercase;
    line-height: 1;
    color: #000;
    margin-bottom: 0.5rem;
}
.about-hero__role {
    font-size: clamp(1rem, 1.3vw, 1.25rem);
    font-weight: 400;
    color: #666;
    margin-bottom: 2.5rem;
    line-height: 1.4;
}
.about-hero__body {
    font-size: clamp(0.95rem, 1.1vw, 1.1rem);
    font-weight: 400;
    color: #444;
    line-height: 1.75;
}
.about-hero__body p {
    margin-bottom: 1.25rem;
}
.about-hero__socials {
    display: flex;
    gap: 1rem;
    margin: 2.5rem auto 0;
    width: fit-content;
}
.about-hero__socials a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1.5px solid #000;
    color: #000;
    transition: background 0.3s ease, color 0.3s ease;
}
.about-hero__socials a:hover {
    background: #000;
    color: #fff;
}
.about-hero__socials svg {
    width: 18px;
    height: 18px;
}
.about-hero__image {
    position: relative;
}
.about-hero__image img {
    width: 100%;
    border-radius: 1rem;
    display: block;
}

/* About — bottom section: bio */
.about-bio {
    background: #fff;
    padding: clamp(4rem, 8vw, 8rem) clamp(2rem, 6vw, 6rem);
    border-top: 1px solid #eee;
}
.about-bio__inner {
    max-width: 800px;
    margin: 0 auto;
}
.about-bio__heading {
    font-family: var(--font-heading);
    font-size: clamp(1.5rem, 2.5vw, 2.5rem);
    font-weight: 700;
    text-transform: uppercase;
    color: #000;
    margin-bottom: 2.5rem;
    line-height: 1.1;
}
.about-bio__text {
    font-size: clamp(0.95rem, 1.1vw, 1.1rem);
    font-weight: 400;
    color: #444;
    line-height: 1.85;
}
.about-bio__text p {
    margin-bottom: 1.5rem;
}
.about-bio__signature {
    margin-top: 3rem;
}
.about-bio__signature img {
    height: clamp(50px, 5vw, 70px);
    width: auto;
    filter: invert(0);
}

/* About footer override — dark footer on white page */
.about .footer {
    background: #000;
}

/* About responsive */
@media (max-width: 991px) {
    .about-hero__grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    .about-hero__image {
        max-width: 500px;
    }
}

/* --- Page Hero (subpages) --- */
.page-hero {
    padding: 10rem clamp(1.5rem, 4vw, 3rem) 4rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 50%, #1a1a1a 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, #111 0%, transparent 50%);
    z-index: 0;
}
.page-hero > * { position: relative; z-index: 1; }
.page-hero__title {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}
.page-hero__sub {
    font-size: 1rem;
    color: var(--color-muted);
}

/* --- Legal / Content pages --- */
.legal-content {
    max-width: 800px;
    margin: 0 auto;
    padding: clamp(3rem, 6vw, 5rem) clamp(1.5rem, 4vw, 3rem);
}
.legal-content h2 {
    font-family: var(--font-heading);
    font-size: 1.375rem;
    text-transform: uppercase;
    margin-top: 3rem;
    margin-bottom: 1rem;
    color: var(--color-white);
}
.legal-content h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-top: 2rem;
    margin-bottom: 0.75rem;
    color: var(--color-white);
}
.legal-content p {
    font-size: 0.9375rem;
    color: var(--color-muted);
    line-height: 1.8;
    margin-bottom: 1rem;
}
.legal-content ul {
    margin: 0.5rem 0 1rem 1.5rem;
    list-style: disc;
}
.legal-content li {
    font-size: 0.9375rem;
    color: var(--color-muted);
    line-height: 1.8;
    margin-bottom: 0.25rem;
}
.legal-content strong { color: var(--color-white); }
.legal-content a {
    color: var(--color-white);
    text-decoration: underline;
    text-underline-offset: 2px;
}
.legal-content a:hover { color: var(--color-muted); }
.legal-contact-box {
    background: var(--color-surface);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 8px;
    padding: 1.5rem 2rem;
    margin-top: 1rem;
}
.legal-contact-box p {
    margin-bottom: 0.25rem;
}

/* --- Contact Form --- */
.contact-section {
    padding: clamp(3rem, 6vw, 5rem) clamp(1.5rem, 4vw, 3rem);
    max-width: 700px;
    margin: 0 auto;
}
.form-group { margin-bottom: 1.5rem; }
.form-label {
    display: block;
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-muted);
    margin-bottom: 0.5rem;
}
.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--color-surface);
    border: 1px solid rgba(255,255,255,0.1);
    color: var(--color-white);
    font-family: var(--font-body);
    font-size: 0.9375rem;
    border-radius: 4px;
    outline: none;
    transition: border-color 0.3s ease;
}
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: rgba(255,255,255,0.4);
}
.form-input::placeholder,
.form-textarea::placeholder { color: #444; }
.form-select option { background: #111; color: #fff; }
.form-textarea { resize: vertical; min-height: 140px; }
.form-submit {
    width: 100%;
    padding: 1rem;
    background: var(--color-white);
    color: var(--color-bg);
    font-family: var(--font-heading);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: opacity 0.3s ease;
}
.form-submit:hover { opacity: 0.85; }
.form-status {
    padding: 1rem;
    border-radius: 4px;
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
    display: none;
}
.form-status--success { background: rgba(34,197,94,0.15); border: 1px solid rgba(34,197,94,0.3); color: #4ade80; }
.form-status--error { background: rgba(239,68,68,0.15); border: 1px solid rgba(239,68,68,0.3); color: #f87171; }
.form-status--ratelimited { background: rgba(234,179,8,0.15); border: 1px solid rgba(234,179,8,0.3); color: #facc15; }

/* --- Contact info --- */
.contact-info {
    max-width: 700px;
    margin: 0 auto;
    padding: 0 clamp(1.5rem, 4vw, 3rem) clamp(3rem, 6vw, 5rem);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}
.contact-info__block h3 {
    font-family: var(--font-heading);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.5rem;
}
.contact-info__block p {
    font-size: 0.875rem;
    color: var(--color-muted);
    line-height: 1.6;
}

/* --- Support page cards --- */
.support-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    max-width: 900px;
    margin: 0 auto;
    padding: 0 clamp(1.5rem, 4vw, 3rem) clamp(3rem, 6vw, 5rem);
}
.support-card {
    padding: 2rem;
    background: var(--color-surface);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 4px;
}
.support-card h3 {
    font-family: var(--font-heading);
    font-size: 1rem;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}
.support-card p {
    font-size: 0.875rem;
    color: var(--color-muted);
    line-height: 1.6;
    margin-bottom: 0.75rem;
}
.support-card a {
    font-size: 0.8125rem;
    color: var(--color-white);
    text-decoration: underline;
    text-underline-offset: 2px;
}

/* --- Help section (support) --- */
.help-section {
    max-width: 900px;
    margin: 0 auto;
    padding: clamp(3rem, 6vw, 5rem) clamp(1.5rem, 4vw, 3rem);
}
.help-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: 3rem;
}
.help-card {
    padding: 2rem;
    background: var(--color-surface);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 4px;
    text-align: center;
}
.help-card__icon {
    width: 40px;
    height: 40px;
    margin: 0 auto 1rem;
}
.help-card__icon svg {
    width: 100%;
    height: 100%;
    stroke: var(--color-white);
    fill: none;
    stroke-width: 1.5;
}
.help-card h3 {
    font-family: var(--font-heading);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}
.help-card p {
    font-size: 0.8125rem;
    color: var(--color-muted);
    line-height: 1.5;
}

/* --- Responsive --- */
@media (max-width: 991px) {
    .nav__links { display: none; }
    .burger { display: flex; }

    .heading-xl { font-size: 10vw; }

    .hero__tagline-wrap { position: relative; top: auto; right: auto; width: 100%; }
    .hero__tagline { font-size: 4vw; }

    .approach { padding: 10vw 6vw 0; }
    .approach-grid { grid-template-columns: 1fr; gap: 5vw; }
    .approach-grid__tag { grid-column: 1; }
    .approach-grid__text { grid-column: 1; }
    .approach-block { margin-bottom: 16vw; }
    .manifesto { font-size: 5vw; }
    .split-tag { font-size: 2.5vw; }

    /* Horizontal → vertical stack */
    .horizontal-section { overflow: visible; }
    .horizontal-wrapper {
        flex-direction: column;
        width: 100%;
    }
    .horizontal-scale { transform: scale(1) !important; }
    .h-tile {
        width: 100vw;
        height: auto;
        min-height: 70vh;
    }
    .h-tile--dark { width: 100vw; }
    .h-tile__title { font-size: 12vw; }
    .h-tile__brief { max-width: 75vw; font-size: 0.875rem; position: static; margin-bottom: 2rem; }
    .h-tile__bottom { position: static; margin-top: auto; }
    .h-tile--white { display: flex; flex-direction: column; }

    .services__grid { grid-template-columns: 1fr; }
    .cases__grid { grid-template-columns: repeat(2, 1fr); }

    .footer__inner {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .contact-info { grid-template-columns: 1fr; }
    .support-grid { grid-template-columns: 1fr; }
    .help-grid { grid-template-columns: 1fr; }
}

@media (max-width: 479px) {
    .heading-xl { font-size: 15vw; }
    .hero__tagline { font-size: 5vw; }
    .manifesto { font-size: 7vw; }
    .split-tag { font-size: 3.5vw; }
    .h-tile__title { font-size: 15vw; }
    .cases__grid { grid-template-columns: 1fr; }
    .hero { padding-bottom: 3vh; }
}