/* ============================================================
   Nicolas Turnbull - shared site styles
   Design language: cinematic dark, editorial serif accents,
   restrained motion, generous whitespace.
   ============================================================ */

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

:root {
    /* palette */
    --bg:        #060607;
    --bg-2:      #0b0b0d;
    --bg-3:      #101014;
    --bg-4:      #16161c;
    --line:      rgba(255,255,255,0.06);
    --line-2:    rgba(255,255,255,0.10);

    --acc:       #00d4aa;
    --acc-hi:    #00edc0;
    --acc-d:     rgba(0,212,170,0.12);
    --acc-g:     rgba(0,212,170,0.28);
    --acc-line:  rgba(0,212,170,0.28);

    --t-1:       #f4f4f5;
    --t-2:       #a1a1aa;
    --t-3:       #71717a;
    --t-4:       #52525b;

    /* type */
    --font-display: 'Outfit', system-ui, sans-serif;
    --font-heading: 'Outfit', system-ui, sans-serif;
    --font-body:    'Inter', system-ui, sans-serif;
    --font-mono:    'JetBrains Mono', 'SF Mono', monospace;

    /* layout */
    --max:       1200px;
    --gutter:    2rem;
    --radius:    14px;
    --radius-sm: 8px;

    /* motion */
    --ease:      0.4s cubic-bezier(.22,1,.36,1);
    --ease-fast: 0.25s cubic-bezier(.4,0,.2,1);
    --ease-slow: 0.75s cubic-bezier(.22,1,.36,1);
}

html { scroll-behavior:smooth; -webkit-text-size-adjust:100%; }

body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--t-1);
    line-height: 1.55;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    font-feature-settings: "ss01", "cv01";
}

::selection { background: var(--acc); color: #000; }

/* grain overlay - subtle noise across the whole viewport */
body::before {
    content:'';
    position: fixed; inset: 0;
    pointer-events: none;
    z-index: 999;
    opacity: 0.035;
    mix-blend-mode: overlay;
    background-image: url("data:image/svg+xml;utf8,<svg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='200' height='200' filter='url(%23n)'/></svg>");
}

/* ── LOADING SCREEN ─────────────────────────────────────── */
#loader {
    position: fixed; inset: 0;
    background: #050506;
    z-index: 10000;
    display: flex; align-items: center; justify-content: center;
    flex-direction: column; gap: 2rem;
    transition: opacity 0.7s ease, visibility 0s linear 0.7s;
}
#loader.done { opacity: 0; visibility: hidden; }
#loader .loader-mark {
    font-family: var(--font-display);
    font-size: clamp(4rem, 10vw, 7rem);
    font-style: italic;
    color: var(--t-1);
    line-height: 1;
    letter-spacing: -0.04em;
    opacity: 0;
    animation: loaderIn 0.9s cubic-bezier(.22,1,.36,1) 0.1s forwards;
}
#loader .loader-mark .amp { color: var(--acc); }
#loader .loader-bar {
    width: 220px; height: 1px;
    background: rgba(255,255,255,0.08);
    position: relative;
    overflow: hidden;
}
#loader .loader-bar::after {
    content:'';
    position: absolute; top: 0; left: 0; height: 100%;
    width: 0;
    background: var(--acc);
    animation: loaderFill 1.4s cubic-bezier(.65,0,.35,1) 0.2s forwards;
}
#loader .loader-meta {
    display: flex; align-items: center; gap: 1rem;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--t-3);
    opacity: 0;
    animation: loaderIn 0.6s ease 0.35s forwards;
}
#loader .loader-pct { color: var(--acc); min-width: 34px; }
@keyframes loaderIn  { from { opacity:0; transform:translateY(8px);} to { opacity:1; transform:translateY(0);} }
@keyframes loaderFill { to { width: 100%; } }

/* ── NAV ────────────────────────────────────────────────── */
nav.site-nav {
    position: fixed; top: 0; left: 0; right: 0;
    z-index: 500;
    background: rgba(6,6,7,0.72);
    backdrop-filter: blur(24px) saturate(140%);
    -webkit-backdrop-filter: blur(24px) saturate(140%);
    border-bottom: 1px solid transparent;
    transition: border-color var(--ease-fast), background var(--ease-fast);
}
nav.site-nav.scrolled { border-bottom-color: var(--line); background: rgba(6,6,7,0.88); }

.nav-progress {
    position: absolute; top: 0; left: 0; height: 1px;
    background: var(--acc);
    width: 0%;
    transition: width 0.1s linear;
}

.nav-inner {
    max-width: var(--max);
    margin: 0 auto;
    padding: 0 var(--gutter);
    height: 68px;
    display: flex; align-items: center; justify-content: space-between;
    position: relative;
}

.logo {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.4rem;
    color: var(--t-1);
    text-decoration: none;
    letter-spacing: -0.02em;
    display: inline-flex; align-items: center; gap: 0.5rem;
    transition: color var(--ease-fast);
}
.logo .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--acc); display: inline-block; }
.logo:hover { color: var(--acc); }

.nav-links { display: flex; list-style: none; gap: 0.25rem; align-items: center; }
.nav-links a {
    color: var(--t-2);
    text-decoration: none;
    font-size: 0.83rem;
    font-weight: 400;
    padding: 0.5rem 0.85rem;
    border-radius: 6px;
    letter-spacing: 0.01em;
    position: relative;
    transition: color var(--ease-fast);
}
.nav-links a:hover, .nav-links a.active { color: var(--t-1); }
.nav-links a.active::after {
    content: ''; position: absolute; bottom: 2px; left: 50%;
    transform: translateX(-50%);
    width: 4px; height: 4px; border-radius: 50%; background: var(--acc);
}
.nav-cta {
    background: var(--t-1) !important;
    color: #050505 !important;
    font-weight: 500 !important;
    margin-left: 0.75rem;
    padding: 0.55rem 1rem !important;
    border-radius: 100px;
    display: inline-flex !important; align-items: center; gap: 0.4rem;
    transition: all var(--ease-fast) !important;
}
.nav-cta:hover { background: var(--acc) !important; transform: translateY(-1px); }
.nav-cta::after { display: none !important; }

.hamburger {
    display: none;
    flex-direction: column; gap: 5px;
    cursor: pointer; background: none; border: none; padding: 0.4rem;
}
.hamburger span { display: block; width: 22px; height: 1.5px; background: var(--t-1); border-radius: 2px; transition: transform var(--ease-fast); }

/* ── SHARED TYPE / LAYOUT ───────────────────────────────── */
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); position: relative; }

.section-num {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--t-3);
    display: inline-flex; align-items: center; gap: 0.6rem;
    margin-bottom: 1.5rem;
}
.section-num::before {
    content: ''; width: 24px; height: 1px; background: var(--acc);
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4.5vw, 3.4rem);
    font-weight: 700;
    letter-spacing: -0.035em;
    line-height: 1.05;
    margin-bottom: 1rem;
    max-width: 780px;
}
.section-title em {
    font-style: normal;
    color: var(--acc);
}
.section-sub {
    color: var(--t-2);
    font-size: 1rem;
    max-width: 560px;
    line-height: 1.7;
    margin-bottom: 3.5rem;
}

/* ── BUTTONS ────────────────────────────────────────────── */
.btn {
    display: inline-flex; align-items: center; gap: 0.5rem;
    padding: 0.85rem 1.4rem;
    border-radius: 100px;
    font-family: var(--font-body);
    font-size: 0.86rem;
    font-weight: 500;
    letter-spacing: 0.005em;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all var(--ease-fast);
    white-space: nowrap;
}
.btn-solid { background: var(--acc); color: #050505; }
.btn-solid:hover { background: var(--acc-hi); transform: translateY(-1px); box-shadow: 0 10px 32px var(--acc-g); }
.btn-light { background: var(--t-1); color: #050505; }
.btn-light:hover { background: var(--acc); transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--t-1); border: 1px solid var(--line-2); }
.btn-ghost:hover { border-color: var(--acc-line); background: rgba(255,255,255,0.02); transform: translateY(-1px); }
.btn-ghost-sm { padding: 0.65rem 1.1rem; font-size: 0.82rem; }

/* ── FOOTER ─────────────────────────────────────────────── */
footer.site-foot {
    background: var(--bg-2);
    border-top: 1px solid var(--line);
    padding: 5rem 0 2.5rem;
    margin-top: 6rem;
    position: relative;
}
.foot-lead {
    max-width: var(--max);
    margin: 0 auto 4rem;
    padding: 0 var(--gutter);
}
.foot-lead-title {
    font-family: var(--font-heading);
    font-size: clamp(2.4rem, 6vw, 5rem);
    font-weight: 700;
    letter-spacing: -0.04em;
    line-height: 1;
    margin-bottom: 1.25rem;
}
.foot-lead-title em {
    font-style: normal;
    color: var(--acc);
}
.foot-lead p { color: var(--t-2); font-size: 1rem; max-width: 540px; line-height: 1.7; margin-bottom: 2rem; }

.foot-grid {
    max-width: var(--max);
    margin: 0 auto;
    padding: 0 var(--gutter);
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid var(--line);
}
.foot-brand .logo { font-size: 1.7rem; display: block; margin-bottom: 1rem; }
.foot-brand p { color: var(--t-3); font-size: 0.86rem; line-height: 1.7; max-width: 280px; margin-bottom: 1.5rem; }
.socials { display: flex; gap: 0.5rem; }
.socials a {
    width: 36px; height: 36px;
    display: flex; align-items: center; justify-content: center;
    background: var(--bg-3); border: 1px solid var(--line);
    border-radius: 50%; color: var(--t-2);
    text-decoration: none; font-size: 0.82rem;
    transition: all var(--ease-fast);
}
.socials a:hover { border-color: var(--acc-line); color: var(--acc); transform: translateY(-2px); }

.foot-col h4 {
    font-family: var(--font-mono);
    font-size: 0.7rem; font-weight: 500;
    letter-spacing: 0.15em; text-transform: uppercase;
    color: var(--t-4); margin-bottom: 1.25rem;
}
.foot-col ul { list-style: none; display: flex; flex-direction: column; gap: 0.7rem; }
.foot-col ul a { color: var(--t-2); text-decoration: none; font-size: 0.88rem; transition: color var(--ease-fast); }
.foot-col ul a:hover { color: var(--acc); }

.foot-bottom {
    max-width: var(--max);
    margin: 2rem auto 0;
    padding: 0 var(--gutter);
    display: flex; justify-content: space-between; align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}
.foot-bottom p { color: var(--t-4); font-size: 0.78rem; font-family: var(--font-mono); letter-spacing: 0.02em; }

/* ── CONTACT MODAL ──────────────────────────────────────── */
.modal {
    display: none; position: fixed; inset: 0;
    z-index: 9500;
    background: rgba(0,0,0,0.82);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}
.modal.active { display: flex; align-items: center; justify-content: center; padding: 2rem; }
.modal-content {
    background: var(--bg-2);
    border: 1px solid var(--line-2);
    border-radius: 20px;
    max-width: 540px; width: 100%;
    max-height: 90vh; overflow-y: auto;
    box-shadow: 0 24px 80px rgba(0,0,0,0.6);
    animation: modalIn 0.4s cubic-bezier(.22,1,.36,1);
}
@keyframes modalIn { from { opacity:0; transform: translateY(12px) scale(0.98);} to { opacity:1; transform: translateY(0) scale(1);} }
.modal-header {
    padding: 1.85rem 2rem;
    border-bottom: 1px solid var(--line);
    display: flex; justify-content: space-between; align-items: center;
}
.modal-header h2 {
    font-family: var(--font-heading);
    font-size: 1.4rem; font-weight: 700; letter-spacing: -0.02em; margin: 0;
}
.modal-close {
    background: none; border: none; font-size: 1.6rem;
    color: var(--t-3); cursor: pointer;
    line-height: 1; padding: 0; width: 32px; height: 32px;
    transition: color var(--ease-fast);
}
.modal-close:hover { color: var(--t-1); }
.modal-body { padding: 2rem; }
.modal-intro { color: var(--t-2); font-size: 0.9rem; margin-bottom: 1.75rem; line-height: 1.6; }
.form-group { margin-bottom: 1.15rem; }
.form-group label {
    display: block; font-size: 0.78rem; font-weight: 500;
    color: var(--t-2); margin-bottom: 0.5rem;
    letter-spacing: 0.01em;
}
.form-group input, .form-group textarea {
    width: 100%; padding: 0.8rem 1rem;
    background: var(--bg-3);
    border: 1px solid var(--line);
    border-radius: 10px;
    color: var(--t-1);
    font-family: var(--font-body); font-size: 0.9rem;
    transition: border-color var(--ease-fast), background var(--ease-fast);
}
.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--acc-line);
    background: var(--bg-4);
}
.form-group textarea { resize: vertical; min-height: 120px; line-height: 1.55; }
.form-actions { display: flex; gap: 0.75rem; margin-top: 1.75rem; }
.form-actions .btn { flex: 1; justify-content: center; }
.modal-alt {
    margin-top: 1.5rem; padding-top: 1.5rem;
    border-top: 1px solid var(--line); text-align: center;
}
.modal-alt p { color: var(--t-3); font-size: 0.83rem; margin: 0; }
.modal-alt strong { color: var(--acc); font-weight: 500; }

/* ── MOTION UTILITIES ───────────────────────────────────── */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.9s cubic-bezier(.22,1,.36,1), transform 0.9s cubic-bezier(.22,1,.36,1); }
.reveal.in { opacity: 1; transform: translateY(0); }
.d1 { transition-delay: 0.08s; }
.d2 { transition-delay: 0.16s; }
.d3 { transition-delay: 0.24s; }
.d4 { transition-delay: 0.32s; }

/* split-text reveal for hero - chars wrap in .char span, staggered via JS or inline delay */
.split .char {
    display: inline-block;
    opacity: 0;
    transform: translateY(1em);
    animation: charIn 0.9s cubic-bezier(.22,1,.36,1) forwards;
}
@keyframes charIn { to { opacity: 1; transform: translateY(0); } }

/* ── MOBILE ─────────────────────────────────────────────── */
@media (max-width: 900px) {
    .foot-grid { grid-template-columns: 1fr 1fr; }
    .foot-brand { grid-column: 1 / -1; }
}
@media (max-width: 640px) {
    :root { --gutter: 1.25rem; }
    .nav-links { display: none; }
    .nav-links.open {
        display: flex; flex-direction: column;
        position: absolute; top: 68px; left: 0; right: 0;
        background: rgba(6,6,7,0.98);
        border-bottom: 1px solid var(--line);
        padding: 1rem;
        gap: 0.15rem;
    }
    .hamburger { display: flex; }
    .foot-grid { grid-template-columns: 1fr; gap: 2.5rem; }
    .foot-bottom { flex-direction: column; align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
    .reveal { opacity: 1; transform: none; }
}