/* ============================================
   SHARED BASE — applies to all sites (#12 onwards)
   Per-site theme.css overrides :root variables + adds layout extras
   ============================================ */

:root {
    /* These are SAFE DEFAULTS — overridden per site in theme.css */
    --bg:           #F4F4F2;
    --bg-alt:       #FFFFFF;
    --bg-dark:      #1A1A1A;
    --bg-deep:      #0E0E0E;
    --surface:      #EAEAE6;
    --ink:          #1A1A1A;
    --ink-soft:     #3A3A3A;
    --ink-muted:    #7A7A7A;
    --ink-light:    #B8B8B8;
    --line:         #D6D6D2;
    --line-soft:    #E5E5E1;
    --accent:       #4A6FA5;
    --accent-deep:  #2C4566;
    --accent-light: #7A9BCB;

    --font-display: 'Manrope', 'Inter', sans-serif;
    --font-body:    'Inter', sans-serif;

    --max-width:        1320px;
    --max-width-narrow: 920px;
    --t-fast: 200ms cubic-bezier(0.22, 0.61, 0.36, 1);
    --t-base: 450ms cubic-bezier(0.22, 0.61, 0.36, 1);
    --t-slow: 800ms cubic-bezier(0.22, 0.61, 0.36, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font-body); font-size: 16px; line-height: 1.65; color: var(--ink-soft); background: var(--bg); overflow-x: hidden; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--t-fast); }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul, ol { list-style: none; }

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 700; color: var(--ink); letter-spacing: -0.02em; line-height: 1.1; }
h1 { font-size: clamp(2.5rem, 6vw, 5rem); font-weight: 800; }
h2 { font-size: clamp(1.9rem, 4vw, 3rem); }
h3 { font-size: clamp(1.25rem, 2.2vw, 1.6rem); }
h4 { font-size: 1.1rem; }

.eyebrow { font-family: var(--font-body); font-size: 0.72rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.22em; color: var(--accent-deep); display: inline-block; margin-bottom: 1.25rem; }
.lead { font-size: 1.18rem; line-height: 1.65; color: var(--ink-soft); font-weight: 400; }
.serif-italic { font-style: italic; }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 2.5rem; }
.container-narrow { max-width: var(--max-width-narrow); margin: 0 auto; padding: 0 2.5rem; }
section { padding: 6rem 0; }
.section-head { margin-bottom: 3.5rem; max-width: 720px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }

/* NAV */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; padding: 1.4rem 0; transition: background var(--t-base), padding var(--t-base); border-bottom: 1px solid transparent; }
.nav.scrolled { background: rgba(244, 244, 242, 0.95); backdrop-filter: blur(20px); padding: 0.9rem 0; border-bottom-color: var(--line); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; max-width: var(--max-width); margin: 0 auto; padding: 0 2.5rem; }
.nav-logo { font-family: var(--font-display); font-size: 1.35rem; font-weight: 700; color: var(--ink); line-height: 1.1; letter-spacing: -0.02em; }
.nav-logo .accent { color: var(--accent); }
.nav-logo small {
    display: block; font-family: var(--font-body);
    font-size: 0.7rem; font-weight: 600; letter-spacing: 0.2em;
    color: var(--ink-muted); text-transform: uppercase; margin-top: 0.3rem;
    transition: opacity 250ms ease, max-height 250ms ease, margin-top 250ms ease;
    opacity: 1; max-height: 2em; overflow: hidden;
}
.nav.scrolled .nav-logo small { opacity: 0; max-height: 0; margin-top: 0; pointer-events: none; }
.nav.scrolled .nav-logo { line-height: 1; }
.nav-links { display: flex; gap: 2.25rem; align-items: center; }
.nav-links a { font-size: 0.82rem; font-weight: 600; color: var(--ink-soft); padding: 0.5rem 0; text-transform: none; }
.nav-links a:hover { color: var(--accent); }
.nav-cta { padding: 0.7rem 1.55rem; border: 1px solid var(--ink); color: var(--ink) !important; transition: all var(--t-fast); border-radius: 6px; margin-left: 1.5rem; }
.nav-cta:hover { background: var(--ink); color: var(--bg) !important; }
.nav-toggle { display: none; width: 28px; height: 20px; position: relative; }
.nav-toggle span { position: absolute; left: 0; right: 0; height: 1.5px; background: var(--ink); transition: all var(--t-fast); }
.nav-toggle span:nth-child(1) { top: 0; }
.nav-toggle span:nth-child(2) { top: 50%; transform: translateY(-50%); }
.nav-toggle span:nth-child(3) { bottom: 0; }

/* Visibility fix for dark heroes — when nav is over dark hero, text becomes white */
.nav.over-dark:not(.scrolled) .nav-logo,
.nav.over-dark:not(.scrolled) .nav-logo small { color: rgba(255, 255, 255, 0.95); }
.nav.over-dark:not(.scrolled) .nav-logo small { color: rgba(255, 255, 255, 0.65); }
.nav.over-dark:not(.scrolled) .nav-links > li > a { color: rgba(255, 255, 255, 0.88); }
.nav.over-dark:not(.scrolled) .nav-links > li > a:hover { color: #fff; }
.nav.over-dark:not(.scrolled) .nav-cta {
    border-color: rgba(255, 255, 255, 0.5) !important;
    background: transparent !important;
    color: rgba(255, 255, 255, 0.95) !important;
}
.nav.over-dark:not(.scrolled) .nav-cta:hover {
    background: rgba(255, 255, 255, 0.95) !important;
    color: #1A1A1A !important;
    border-color: rgba(255, 255, 255, 0.95) !important;
}
.nav.over-dark:not(.scrolled) .nav-toggle span { background: rgba(255, 255, 255, 0.95); }

/* BUTTONS */
.btn { display: inline-flex; align-items: center; gap: 0.6rem; padding: 0.95rem 2.2rem; font-size: 0.82rem; font-weight: 600; transition: all var(--t-base); border: 1px solid transparent; cursor: pointer; border-radius: 6px; }
.btn-primary { background: var(--accent); color: var(--bg); }
.btn-primary:hover { background: var(--accent-deep); transform: translateY(-2px); }
.btn-outline { background: transparent; border-color: var(--ink); color: var(--ink); }
.btn-outline:hover { background: var(--ink); color: var(--bg); }
.btn-outline.light { border-color: var(--bg); color: var(--bg); }
.btn-outline.light:hover { background: var(--bg); color: var(--ink); }
.btn-group { display: flex; flex-wrap: wrap; gap: 1rem; }
.link-arrow { display: inline-flex; align-items: center; gap: 0.5rem; font-size: 0.82rem; font-weight: 600; color: var(--ink); padding-bottom: 0.4rem; border-bottom: 1px solid var(--accent); transition: all var(--t-fast); }
.link-arrow:hover { color: var(--accent); gap: 0.8rem; }

/* HERO base — can be customized per site */
.hero { position: relative; min-height: 90vh; display: flex; align-items: center; overflow: hidden; padding-top: 7rem; background: var(--bg-dark); color: var(--bg); }
.hero-bg { position: absolute; inset: 0; background-size: cover; background-position: center; filter: brightness(0.5) saturate(0.9); }
.hero-bg::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0,0,0,0.2) 0%, rgba(0,0,0,0.55) 60%, rgba(0,0,0,0.9) 100%); }
.hero-inner { position: relative; z-index: 2; width: 100%; padding: 5rem 0 4rem; }
.hero h1 { color: var(--bg); max-width: 16ch; margin-bottom: 1.5rem; }
.hero h1 em, .hero h1 span { font-style: italic; color: var(--accent-light); font-weight: 400; }
.hero .lead { color: rgba(255, 255, 255, 0.82); max-width: 56ch; margin-bottom: 2.5rem; }
.hero .eyebrow { color: var(--accent-light); }

/* SPLIT */
.split-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: center; }
.split-image { aspect-ratio: 4/5; overflow: hidden; background: var(--surface); border-radius: 8px; }
.split-image img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--t-slow); }
.split-image-placeholder { background: linear-gradient(135deg, var(--surface) 0%, var(--line-soft) 100%); display: flex; align-items: center; justify-content: center; color: var(--ink-light); font-family: var(--font-display); font-style: italic; font-size: 4rem; }

/* SERVICES GRID — basic */
.services-section { background: var(--surface); }
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.service-card { background: var(--bg-alt); padding: 2.5rem; border: 1px solid var(--line); border-radius: 8px; transition: all var(--t-base); position: relative; overflow: hidden; }
.service-card:hover { border-color: var(--accent); transform: translateY(-3px); box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06); }
.service-num { font-family: var(--font-display); font-size: 0.78rem; color: var(--accent); margin-bottom: 1rem; font-weight: 600; letter-spacing: 0.06em; }
.service-card h3 { margin-bottom: 0.85rem; }
.service-card p { font-size: 0.95rem; color: var(--ink-muted); }
.service-card ul { font-size: 0.92rem; color: var(--ink-muted); margin-top: 0.75rem; }
.service-card ul li { padding: 0.2rem 0 0.2rem 1rem; position: relative; }
.service-card ul li::before { content: '›'; position: absolute; left: 0; color: var(--accent); font-weight: 600; }

/* SERVICES LIST style (alternative) */
.services-list { border-top: 1px solid var(--line); }
.service-item { padding: 2.25rem 0; border-bottom: 1px solid var(--line); display: grid; grid-template-columns: 80px 1fr 30px; gap: 1.75rem; align-items: center; transition: all var(--t-base); }
.service-item:hover { padding-left: 1rem; }
.service-item .num { font-family: var(--font-display); font-size: 1.4rem; color: var(--accent); font-weight: 700; }
.service-item h3 { margin: 0 0 0.45rem; }
.service-item p { font-size: 0.95rem; color: var(--ink-muted); margin: 0; }
.service-arrow { font-size: 1.2rem; color: var(--accent); transition: transform var(--t-base); }
.service-item:hover .service-arrow { transform: translateX(8px); }

/* QUOTE */
.quote-block { background: var(--bg-dark); color: var(--bg); padding: 6rem 0; text-align: center; }
.quote-block blockquote { font-size: clamp(1.65rem, 3.2vw, 2.6rem); font-style: italic; font-weight: 300; line-height: 1.3; max-width: 30ch; margin: 0 auto 1.75rem; color: var(--bg); font-family: var(--font-display); }
.quote-block cite { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.22em; color: var(--accent-light); font-style: normal; }

/* CONTACT */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: start; }
.contact-info-item { padding: 1.25rem 0; border-bottom: 1px solid var(--line); }
.contact-info-item:last-child { border-bottom: none; }
.contact-info-item .label { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.22em; color: var(--accent); margin-bottom: 0.55rem; font-weight: 700; }
.contact-info-item .value { font-family: var(--font-display); font-size: 1.4rem; color: var(--ink); line-height: 1.4; font-weight: 600; }
.contact-info-item a:hover { color: var(--accent); }
.contact-map { aspect-ratio: 1/1; background: var(--surface); overflow: hidden; border-radius: 8px; }
.contact-map iframe { width: 100%; height: 100%; border: 0; filter: grayscale(0.4) contrast(1.05); }

/* CTA */
.cta-strip { background: var(--ink); color: var(--bg); padding: 5rem 0; text-align: center; }
.cta-strip h2 { color: var(--bg); margin-bottom: 1.5rem; }
.cta-strip .lead { color: rgba(255, 255, 255, 0.78); margin: 0 auto 2.25rem; max-width: 52ch; }

/* FOOTER */
.footer { background: var(--bg-deep); color: var(--ink-light); padding: 4.5rem 0 2rem; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 3rem; margin-bottom: 3rem; }
.footer h4 { font-family: var(--font-display); font-size: 1.5rem; color: var(--bg); margin-bottom: 1rem; font-weight: 700; }
.footer h4 .accent { color: var(--accent-light); }
.footer h5 { font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.22em; color: var(--accent-light); margin-bottom: 1.25rem; }
.footer p { font-size: 0.93rem; line-height: 1.7; color: rgba(255, 255, 255, 0.55); }
.footer ul li { padding: 0.35rem 0; }
.footer ul a { font-size: 0.92rem; color: rgba(255, 255, 255, 0.7); }
.footer ul a:hover { color: var(--accent-light); }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.1); padding-top: 2rem; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; font-size: 0.8rem; color: rgba(255, 255, 255, 0.4); }

/* PLACEHOLDER */
.placeholder-banner { background: var(--surface); border-left: 3px solid var(--accent); padding: 1.4rem 1.75rem; margin: 1.75rem 0; font-size: 0.94rem; color: var(--ink-soft); border-radius: 0 6px 6px 0; }
.placeholder-banner strong { color: var(--accent-deep); }

/* RESPONSIVE */
@media (max-width: 980px) {
    .nav-links { display: none; }
    .nav-links.open { display: flex; position: absolute; top: 100%; left: 0; right: 0; background: var(--bg); flex-direction: column; padding: 2rem; gap: 1.5rem; border-bottom: 1px solid var(--line); align-items: flex-start; }
    .nav-links.open .nav-cta { margin-left: 0; margin-top: 0.5rem; }
    .nav-toggle { display: block; }
    .split-2, .contact-grid { grid-template-columns: 1fr; gap: 3rem; }
    .services-grid { grid-template-columns: 1fr; }
    .service-item { grid-template-columns: 56px 1fr 24px; gap: 1.25rem; padding: 1.75rem 0; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 2.5rem; }
    section { padding: 4.5rem 0; }
}
@media (max-width: 600px) {
    .nav-logo small { display: none; }
    .nav-logo { line-height: 1; }
}
@media (max-width: 560px) {
    .container, .container-narrow { padding: 0 1.25rem; }
    .nav-inner { padding: 0 1.25rem; }
    .footer-grid { grid-template-columns: 1fr; }
}

/* SCROLL REVEAL */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 800ms cubic-bezier(0.22,0.61,0.36,1), transform 800ms cubic-bezier(0.22,0.61,0.36,1); }
.reveal.is-visible { opacity: 1; transform: none; }