/* ─── OSIH shared styles ─── */
* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    background-color: #fff;
    color: #1a1a1a;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    padding: 0;
}

a { color: inherit; }

/* ── Background layers ── */
#radial-bg {
    position: fixed; inset: 0; z-index: 3; pointer-events: none;
    background: radial-gradient(ellipse at 50% 50%, rgba(255,255,255,1) 0%, rgba(255,255,255,0) 100%);
}
#glitch-overlay {
    position: fixed; inset: 0; z-index: 4; pointer-events: none;
}
#grid-wrap {
    position: fixed; inset: 0; z-index: 2; opacity: 0.3;
    pointer-events: none; will-change: opacity, transform;
    transform-origin: center center;
    animation: slalom 60s ease-in-out infinite,
               grow   480s ease-in-out infinite alternate;
}
#square-grid { display: block; width: 100vw; height: 100vh; }

@keyframes grow   { from { transform: scale(1); } to { transform: scale(2.5); } }
@keyframes slalom {
    0%   { opacity: 0.38; }
    18%  { opacity: 0.22; }
    42%  { opacity: 0.28; }
    67%  { opacity: 0.38; }
    84%  { opacity: 0.22; }
    100% { opacity: 0.35; }
}
@keyframes fadeIn {
    0% { opacity: 0; transform: translateY(20px); }
    100% { opacity: 1; transform: translateY(0); }
}

/* ── Top nav ── */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 20;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 22px 32px;
    pointer-events: none;
}
.nav a { pointer-events: auto; text-decoration: none; }
.nav-mark {
    font-weight: 500;
    letter-spacing: 0.18em;
    font-size: 0.78rem;
    color: #111;
    text-transform: uppercase;
}
.nav-links {
    display: flex;
    gap: 1.75rem;
    font-size: 0.78rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: #888;
    font-weight: 400;
}
.nav-links a { transition: color 0.2s ease; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: #111; }

@media (max-width: 600px) {
    .nav { padding: 16px 18px; }
    .nav-links { gap: 1rem; font-size: 0.7rem; letter-spacing: 0.1em; }
}

/* ── Hero (home) ── */
.hero {
    min-height: 100vh;
    display: flex; flex-direction: column;
    justify-content: center; align-items: center;
    padding: 40px 24px;
}
.container {
    position: relative;
    z-index: 10;
    max-width: 820px;
    text-align: center;
    display: flex; flex-direction: column;
    align-items: center;
    gap: 2.5rem;
    opacity: 0;
    animation: fadeIn 2s ease-out forwards;
}
.logo {
    width: 220px;
    max-width: 50vw;
    height: auto;
    display: block;
    margin-bottom: 0.5rem;
}
.manifesto {
    font-weight: 300;
    font-size: 1.6rem;
    line-height: 1.5;
    letter-spacing: -0.012em;
    color: #888;
}
.manifesto strong {
    color: #111;
    font-weight: 500;
    letter-spacing: -0.012em;
}

/* ── Email trigger / brand mark ── */
.email-trigger {
    cursor: pointer;
    display: inline-block;
    transition: transform 0.3s ease, opacity 0.3s ease;
    opacity: 0.7;
    background: none; border: none; padding: 0;
}
.email-trigger:hover { transform: scale(1.02); opacity: 1; }
.brand-name {
    font-weight: 400;
    letter-spacing: 0.32em;
    text-transform: uppercase;
    color: #555;
    font-size: 0.78rem;
    line-height: 2;
}
.brand-name small {
    font-weight: 300;
    letter-spacing: 0.28em;
    font-size: 0.78em;
    color: #aaa;
}

/* ── Page sections (subpages) ── */
.page {
    position: relative;
    z-index: 10;
    max-width: 760px;
    margin: 0 auto;
    padding: 9rem 32px 8rem;
}
.page-eyebrow {
    font-weight: 400;
    letter-spacing: 0.36em;
    text-transform: uppercase;
    color: #aaa;
    font-size: 0.72rem;
    margin-bottom: 1.5rem;
}
.page-title {
    font-weight: 400;
    font-size: 2.6rem;
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: #111;
    margin-bottom: 2rem;
}
.page-lede {
    font-weight: 300;
    font-size: 1.4rem;
    line-height: 1.5;
    letter-spacing: -0.012em;
    color: #777;
    margin-bottom: 4rem;
}
.page p {
    font-weight: 300;
    font-size: 1.05rem;
    line-height: 1.7;
    color: #444;
    margin-bottom: 1.25rem;
    letter-spacing: -0.005em;
}
.page p strong { color: #111; font-weight: 500; }
.page h2 {
    font-weight: 500;
    font-size: 1.4rem;
    color: #111;
    margin: 3rem 0 1rem;
    letter-spacing: -0.015em;
}
.page ul {
    list-style: none;
    padding: 0;
    margin: 1rem 0 2rem;
}
.page ul li {
    font-weight: 300;
    font-size: 1.05rem;
    line-height: 1.7;
    color: #444;
    padding: 0.4rem 0 0.4rem 1.5rem;
    position: relative;
    letter-spacing: -0.005em;
}
.page ul li::before {
    content: "—";
    position: absolute;
    left: 0;
    color: #bbb;
}

/* ── Selected Work list ── */
.work {
    position: relative;
    z-index: 10;
    max-width: 960px;
    margin: 0 auto;
    padding: 8rem 32px 10rem;
}
.work-label {
    font-weight: 400;
    letter-spacing: 0.36em;
    text-transform: uppercase;
    color: #aaa;
    font-size: 0.72rem;
    text-align: center;
    margin-bottom: 4rem;
}
.work-list { list-style: none; }
.work-item a {
    display: grid;
    grid-template-columns: 36px 1fr auto;
    align-items: baseline;
    gap: 1.5rem;
    padding: 2rem 0;
    border-top: 1px solid #eee;
    text-decoration: none;
    color: inherit;
    transition: opacity 0.3s ease, transform 0.3s ease;
}
.work-item:last-child a { border-bottom: 1px solid #eee; }
.work-item a:hover { opacity: 0.65; transform: translateX(2px); }
.work-item img {
    width: 20px; height: 20px;
    border-radius: 4px;
    opacity: 0.85;
    align-self: center;
}
.work-name {
    font-weight: 500;
    color: #111;
    font-size: 1.5rem;
    line-height: 1.2;
    letter-spacing: -0.015em;
}
.work-desc {
    color: #888;
    font-size: 1.05rem;
    line-height: 1.5;
    margin-top: 0.4rem;
    display: block;
    font-weight: 300;
    letter-spacing: -0.005em;
}
.work-meta {
    color: #aaa;
    font-size: 0.95rem;
    font-weight: 300;
    margin-top: 0.3rem;
    display: block;
}
.work-domain {
    font-weight: 400;
    font-size: 0.72rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: #bbb;
    white-space: nowrap;
}

/* ── Case study fact list ── */
.facts {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem 2rem;
    border-top: 1px solid #eee;
    border-bottom: 1px solid #eee;
    padding: 2rem 0;
    margin: 2.5rem 0 3rem;
}
.facts dt {
    font-size: 0.7rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: #aaa;
    margin-bottom: 0.4rem;
    font-weight: 400;
}
.facts dd {
    font-size: 1rem;
    color: #222;
    font-weight: 400;
    letter-spacing: -0.005em;
}

/* ── Contact form ── */
.form {
    display: flex; flex-direction: column;
    gap: 1.25rem;
    margin-top: 2rem;
}
.form label {
    font-size: 0.72rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: #888;
    margin-bottom: 0.4rem;
    display: block;
    font-weight: 400;
}
.form input, .form textarea {
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 1px solid #ddd;
    padding: 0.6rem 0;
    font-family: inherit;
    font-size: 1rem;
    color: #111;
    font-weight: 300;
    letter-spacing: -0.005em;
    outline: none;
    transition: border-color 0.2s ease;
}
.form input:focus, .form textarea:focus { border-color: #111; }
.form textarea { resize: vertical; min-height: 110px; }
.form button {
    align-self: flex-start;
    margin-top: 1rem;
    background: #111;
    color: #fff;
    border: none;
    padding: 0.85rem 1.6rem;
    font-family: inherit;
    font-size: 0.78rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    cursor: pointer;
    font-weight: 500;
    transition: background 0.2s ease;
}
.form button:hover { background: #000; }

/* ── Footer ── */
.footer {
    position: relative;
    z-index: 10;
    max-width: 960px;
    margin: 0 auto;
    padding: 3rem 32px 4rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid #eee;
    font-size: 0.72rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: #aaa;
    font-weight: 400;
}
.footer a { text-decoration: none; transition: color 0.2s ease; }
.footer a:hover { color: #111; }

@media (max-width: 600px) {
    .manifesto { font-size: 1.15rem; padding: 0 6px; line-height: 1.55; }
    .logo { width: 160px; }
    .work { padding: 5rem 20px 6rem; }
    .work-item a { grid-template-columns: 24px 1fr; gap: 1rem; padding: 1.5rem 0; }
    .work-name { font-size: 1.15rem; }
    .work-desc { font-size: 0.95rem; }
    .work-domain { display: none; }
    .page { padding: 6rem 20px 5rem; }
    .page-title { font-size: 1.9rem; }
    .page-lede { font-size: 1.15rem; margin-bottom: 2.5rem; }
    .facts { grid-template-columns: 1fr; }
    .footer { flex-direction: column; gap: 1rem; padding: 2rem 20px 3rem; }
}