/* ==========================================================================
   Lindsey Consultants — Main Stylesheet (mobile-first)
   ========================================================================== */

:root {
    --c-dark: #0f172a;
    --c-teal: #0ea5e9;
    --c-teal-light: #38bdf8;
    --c-teal-deep: #0284c7;
    --c-mid: #334155;
    --c-bg-light: #f8fafc;
    --c-text: #1e293b;
    --c-text-muted: #475569;
    --c-border: #e2e8f0;
    --c-white: #ffffff;
    --c-success: #10b981;
    --c-error: #ef4444;

    --font-body: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    --font-display: 'Syne', 'Inter', system-ui, sans-serif;

    --fs-xs: .8125rem;
    --fs-sm: .9375rem;
    --fs-base: 1rem;
    --fs-lg: 1.125rem;
    --fs-xl: 1.375rem;
    --fs-2xl: clamp(1.6rem, 1.2rem + 1.6vw, 2.25rem);
    --fs-3xl: clamp(2rem, 1.4rem + 2.6vw, 3rem);
    --fs-hero: clamp(2.4rem, 1.5rem + 4.4vw, 4.5rem);

    --radius-sm: 8px;
    --radius: 14px;
    --radius-lg: 22px;
    --shadow-sm: 0 1px 3px rgba(15, 23, 42, .08);
    --shadow: 0 10px 30px -10px rgba(15, 23, 42, .18);
    --shadow-lg: 0 25px 50px -12px rgba(15, 23, 42, .28);
    --ease: cubic-bezier(.22, .61, .36, 1);
    --section-y: 4.5rem;
    --nav-h: 72px;
    --container: 1200px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    font-family: var(--font-body);
    font-size: var(--fs-base);
    line-height: 1.65;
    color: var(--c-text);
    background: var(--c-white);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
body.nav-open { overflow: hidden; }
img, svg { display: block; max-width: 100%; height: auto; }
a { color: var(--c-teal-deep); text-decoration: none; transition: color .2s; }
a:hover { color: var(--c-teal); }
ul { list-style: none; }
button, input, select, textarea { font: inherit; color: inherit; }
h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.15; color: var(--c-dark); font-weight: 700; letter-spacing: -.01em; }
h1 { font-size: var(--fs-hero); }
h2 { font-size: var(--fs-3xl); }
h3 { font-size: var(--fs-xl); }
p { color: var(--c-text-muted); }
:focus-visible { outline: 3px solid var(--c-teal-light); outline-offset: 3px; }

.skip-link { position: absolute; left: -999px; top: 0; background: var(--c-teal); color: #fff; padding: .6rem 1rem; z-index: 2000; }
.skip-link:focus { left: 1rem; top: 1rem; }

/* ---------- Layout ---------- */
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 1.25rem; }
.section { padding: var(--section-y) 0; }
.section-light { background: var(--c-bg-light); }
.section-dark { background: var(--c-dark); color: #cbd5e1; }
.section-dark h2, .section-dark h3 { color: var(--c-white); }
.section-dark p { color: #94a3b8; }

.section-head { max-width: 720px; margin: 0 auto 3rem; text-align: center; }
.section-head p { font-size: var(--fs-lg); margin-top: 1rem; }
.section-head.left { margin-left: 0; text-align: left; }

.eyebrow {
    display: inline-flex; align-items: center; gap: .5rem;
    font-size: var(--fs-xs); font-weight: 600; letter-spacing: .14em; text-transform: uppercase;
    color: var(--c-teal-deep); margin-bottom: .9rem;
}
.eyebrow::before { content: ""; width: 24px; height: 2px; background: var(--c-teal); }
.section-dark .eyebrow, .hero .eyebrow, .cta-banner .eyebrow { color: var(--c-teal-light); }

.grid { display: grid; gap: 1.5rem; }
.grid-2, .grid-3, .grid-4, .grid-5 { grid-template-columns: 1fr; }

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
    padding: .9rem 1.6rem; border-radius: 999px; border: 2px solid transparent;
    font-weight: 600; font-size: var(--fs-sm); cursor: pointer; white-space: nowrap;
    transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s, color .25s, border-color .25s;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--c-teal); color: var(--c-white); box-shadow: 0 8px 20px -8px rgba(14, 165, 233, .7); }
.btn-primary:hover { background: var(--c-teal-deep); color: var(--c-white); box-shadow: 0 12px 26px -8px rgba(14, 165, 233, .8); }
.btn-outline { border-color: rgba(255, 255, 255, .55); color: var(--c-white); background: rgba(255, 255, 255, .04); backdrop-filter: blur(4px); }
.btn-outline:hover { border-color: var(--c-white); background: var(--c-white); color: var(--c-dark); }
.btn-dark { background: var(--c-dark); color: var(--c-white); }
.btn-dark:hover { background: var(--c-mid); color: var(--c-white); }
.btn-sm { padding: .6rem 1.2rem; }
.btn[disabled] { opacity: .7; cursor: wait; transform: none; }
.btn-group { display: flex; flex-wrap: wrap; gap: 1rem; }

.link-arrow { display: inline-flex; align-items: center; gap: .4rem; font-weight: 600; font-size: var(--fs-sm); color: var(--c-teal-deep); }
.link-arrow::after { content: "→"; transition: transform .25s var(--ease); }
.link-arrow:hover::after { transform: translateX(4px); }

/* ---------- Header / Nav ---------- */
.site-header {
    position: fixed; inset: 0 0 auto 0; z-index: 1000; height: var(--nav-h);
    display: flex; align-items: center;
    background: linear-gradient(to bottom, rgba(15, 23, 42, .65), rgba(15, 23, 42, 0));
    transition: background .35s var(--ease), box-shadow .35s var(--ease), height .35s var(--ease);
}
.site-header.scrolled {
    background: rgba(15, 23, 42, .94); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 6px 24px -10px rgba(0, 0, 0, .5); height: 64px;
}
.nav-wrap { display: flex; align-items: center; justify-content: space-between; }
.brand-logo { height: 42px; width: auto; }

.nav-toggle {
    width: 44px; height: 44px; display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 5px;
    background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .15); border-radius: 10px; cursor: pointer; z-index: 1101;
}
.nav-toggle span { display: block; width: 20px; height: 2px; background: var(--c-white); border-radius: 2px; transition: transform .3s var(--ease), opacity .3s; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.primary-nav {
    position: fixed; top: 0; right: 0; height: 100vh; height: 100dvh; width: min(320px, 85vw);
    background: var(--c-dark); padding: calc(var(--nav-h) + 1.5rem) 1.5rem 2rem;
    transform: translateX(100%); transition: transform .4s var(--ease); z-index: 1100;
    box-shadow: -20px 0 40px rgba(0, 0, 0, .3); overflow-y: auto;
}
.primary-nav.open { transform: translateX(0); }
.primary-nav ul { display: flex; flex-direction: column; gap: .25rem; }
.primary-nav a:not(.btn) {
    display: block; padding: .85rem 1rem; border-radius: var(--radius-sm);
    color: #cbd5e1; font-weight: 500; position: relative;
}
.primary-nav a:not(.btn):hover { color: var(--c-white); background: rgba(255, 255, 255, .05); }
.primary-nav a.active:not(.btn) { color: var(--c-teal-light); background: rgba(14, 165, 233, .1); }
.primary-nav .nav-cta { margin-top: 1rem; width: 100%; }
.nav-overlay { position: fixed; inset: 0; background: rgba(2, 6, 23, .6); opacity: 0; visibility: hidden; transition: opacity .3s; z-index: 1050; }
.nav-overlay.show { opacity: 1; visibility: visible; }

/* ---------- Hero ---------- */
.hero {
    position: relative; min-height: 100vh; min-height: 100svh;
    display: flex; align-items: center; color: var(--c-white);
    background-color: var(--c-dark); background-size: cover; background-position: center;
    overflow: hidden; isolation: isolate;
    padding: calc(var(--nav-h) + 3rem) 0 4rem;
}
.hero-bg {
    position: absolute; inset: -10% 0; z-index: -2;
    background-size: cover; background-position: center; will-change: transform;
}
.hero::before {
    content: ""; position: absolute; inset: 0; z-index: -1;
    background:
        radial-gradient(ellipse at 80% 20%, rgba(14, 165, 233, .22), transparent 55%),
        linear-gradient(105deg, rgba(15, 23, 42, .94) 0%, rgba(15, 23, 42, .78) 45%, rgba(15, 23, 42, .45) 100%);
}
.hero-inner { max-width: 780px; }
.hero h1 { color: var(--c-white); margin-bottom: 1.25rem; }
.hero h1 .accent { color: var(--c-teal-light); }
.hero p.lead { font-size: var(--fs-lg); color: #cbd5e1; max-width: 620px; margin-bottom: 2.25rem; }
.hero-page { min-height: 62vh; min-height: 62svh; padding-bottom: 3.5rem; }
.hero-page .hero-inner { max-width: 720px; }
.breadcrumb { display: flex; gap: .5rem; font-size: var(--fs-xs); color: #94a3b8; margin-bottom: 1rem; text-transform: uppercase; letter-spacing: .12em; }
.breadcrumb a { color: var(--c-teal-light); }
.scroll-cue {
    position: absolute; bottom: 1.75rem; left: 50%; transform: translateX(-50%);
    width: 26px; height: 42px; border: 2px solid rgba(255, 255, 255, .45); border-radius: 20px; display: none;
}
.scroll-cue::after {
    content: ""; position: absolute; left: 50%; top: 8px; width: 4px; height: 8px; margin-left: -2px;
    background: var(--c-teal-light); border-radius: 2px; animation: cue 1.8s infinite;
}
@keyframes cue { 0% { opacity: 0; transform: translateY(0); } 40% { opacity: 1; } 100% { opacity: 0; transform: translateY(14px); } }

/* ---------- Stats bar ---------- */
.stats-bar { position: relative; z-index: 5; margin-top: -3.5rem; }
.stats-inner {
    display: grid; grid-template-columns: repeat(2, 1fr);
    background: var(--c-white); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); overflow: hidden;
}
.stat { padding: 1.75rem 1rem; text-align: center; border-bottom: 1px solid var(--c-border); }
.stat:nth-child(odd) { border-right: 1px solid var(--c-border); }
.stat-num { font-family: var(--font-display); font-size: clamp(1.8rem, 1.3rem + 2vw, 2.6rem); font-weight: 800; color: var(--c-dark); line-height: 1; }
.stat-num .suffix { color: var(--c-teal); }
.stat-label { margin-top: .5rem; font-size: var(--fs-xs); text-transform: uppercase; letter-spacing: .1em; color: var(--c-text-muted); font-weight: 600; }

/* ---------- Cards ---------- */
.card {
    position: relative; background: var(--c-white); border: 1px solid var(--c-border); border-radius: var(--radius);
    padding: 2rem 1.75rem; transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s;
    display: flex; flex-direction: column; overflow: hidden;
}
.card::before {
    content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: linear-gradient(90deg, var(--c-teal), var(--c-teal-light)); transform: scaleX(0); transform-origin: left;
    transition: transform .45s var(--ease);
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; }
.card:hover::before { transform: scaleX(1); }
.card h3 { margin-bottom: .75rem; }
.card p { flex: 1; margin-bottom: 1.25rem; }
.card p:last-child { margin-bottom: 0; }
.icon {
    width: 56px; height: 56px; border-radius: 14px; display: grid; place-items: center; margin-bottom: 1.4rem;
    background: linear-gradient(135deg, rgba(14, 165, 233, .14), rgba(56, 189, 248, .06)); color: var(--c-teal-deep);
}
.icon svg { width: 28px; height: 28px; }
.card-dark { background: rgba(255, 255, 255, .03); border-color: rgba(255, 255, 255, .08); }
.card-dark h3 { color: var(--c-white); }
.card-dark .icon { background: rgba(14, 165, 233, .15); color: var(--c-teal-light); }
.card-dark:hover { background: rgba(255, 255, 255, .06); box-shadow: 0 20px 40px -15px rgba(0, 0, 0, .6); }
.card-num { font-family: var(--font-display); font-size: var(--fs-xs); color: var(--c-teal); font-weight: 700; letter-spacing: .15em; margin-bottom: .5rem; }

/* ---------- Split (image/text) ---------- */
.split { display: grid; gap: 2.5rem; align-items: center; }
.split-media { position: relative; }
.split-media img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }
.split-media::after {
    content: ""; position: absolute; inset: auto -14px -14px auto; width: 45%; height: 45%;
    border: 2px solid var(--c-teal); border-radius: var(--radius-lg); z-index: -1;
}
.split-media .badge {
    position: absolute; left: 1rem; bottom: 1rem; background: rgba(15, 23, 42, .9); backdrop-filter: blur(6px);
    color: var(--c-white); padding: .9rem 1.2rem; border-radius: var(--radius); font-size: var(--fs-sm); border-left: 3px solid var(--c-teal);
}
.split-media .badge strong { display: block; font-family: var(--font-display); font-size: var(--fs-xl); color: var(--c-teal-light); }
.split-body h2 { margin-bottom: 1.25rem; }
.split-body > p { margin-bottom: 1.25rem; font-size: var(--fs-lg); }
.section-dark .split-media::after { border-color: var(--c-teal-light); }

.check-list { display: grid; gap: .75rem; margin: 1.5rem 0 2rem; }
.check-list li { position: relative; padding-left: 2rem; color: var(--c-text); font-weight: 500; }
.check-list li::before {
    content: ""; position: absolute; left: 0; top: .2rem; width: 1.25rem; height: 1.25rem; border-radius: 50%;
    background: var(--c-teal) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center / 60% no-repeat;
}
.section-dark .check-list li { color: #e2e8f0; }

.sub-services { display: grid; grid-template-columns: 1fr; gap: .75rem; margin: 1.75rem 0 2rem; }
.sub-service {
    display: flex; gap: .85rem; align-items: flex-start; padding: 1rem 1.1rem; border-radius: var(--radius-sm);
    background: var(--c-white); border: 1px solid var(--c-border); transition: border-color .25s, transform .25s;
}
.section-light .sub-service { background: var(--c-white); }
.sub-service:hover { border-color: var(--c-teal); transform: translateX(4px); }
.sub-service .dot { flex: none; width: 10px; height: 10px; margin-top: .45rem; border-radius: 3px; background: var(--c-teal); transform: rotate(45deg); }
.sub-service strong { display: block; color: var(--c-dark); font-size: var(--fs-sm); }
.sub-service span { font-size: var(--fs-xs); color: var(--c-text-muted); }

/* ---------- Testimonials ---------- */
.testimonial {
    background: var(--c-white); border-radius: var(--radius); padding: 2rem; box-shadow: var(--shadow-sm);
    border: 1px solid var(--c-border); display: flex; flex-direction: column; gap: 1.25rem;
}
.testimonial .quote-mark { font-family: Georgia, serif; font-size: 3.5rem; line-height: .6; color: var(--c-teal); height: 1.5rem; }
.testimonial blockquote { color: var(--c-text); font-size: var(--fs-base); flex: 1; }
.testimonial .who { display: flex; align-items: center; gap: .85rem; }
.avatar {
    flex: none; width: 46px; height: 46px; border-radius: 50%; display: grid; place-items: center;
    background: linear-gradient(135deg, var(--c-dark), var(--c-mid)); color: var(--c-teal-light);
    font-family: var(--font-display); font-weight: 700; font-size: var(--fs-sm);
}
.who strong { display: block; color: var(--c-dark); font-size: var(--fs-sm); }
.who span { font-size: var(--fs-xs); color: var(--c-text-muted); }

.trust-logos { display: flex; flex-wrap: wrap; justify-content: center; gap: 1rem 2.5rem; margin-top: 3rem; }
.trust-logos span { font-family: var(--font-display); font-weight: 700; font-size: var(--fs-lg); color: #94a3b8; letter-spacing: .04em; opacity: .85; }

/* ---------- CTA banner ---------- */
.cta-banner {
    position: relative; overflow: hidden; border-radius: var(--radius-lg); padding: 3rem 1.75rem; text-align: center;
    background: radial-gradient(circle at 15% 20%, rgba(56, 189, 248, .35), transparent 45%),
                radial-gradient(circle at 85% 90%, rgba(14, 165, 233, .35), transparent 50%), var(--c-dark);
    color: var(--c-white);
}
.cta-banner::after {
    content: ""; position: absolute; inset: 0; opacity: .12; pointer-events: none;
    background-image: linear-gradient(rgba(255, 255, 255, .5) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .5) 1px, transparent 1px);
    background-size: 40px 40px; mask-image: radial-gradient(ellipse at center, #000 20%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, #000 20%, transparent 70%);
}
.cta-banner > * { position: relative; z-index: 1; }
.cta-banner h2 { color: var(--c-white); margin-bottom: 1rem; }
.cta-banner p { color: #cbd5e1; max-width: 580px; margin: 0 auto 2rem; font-size: var(--fs-lg); }
.cta-banner .btn-group { justify-content: center; }

/* ---------- About: values, offices, team ---------- */
.story-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; margin-top: 2rem; }
.story-stats div { padding: 1.25rem; border-radius: var(--radius); background: var(--c-bg-light); border-left: 3px solid var(--c-teal); }
.story-stats strong { display: block; font-family: var(--font-display); font-size: var(--fs-2xl); color: var(--c-dark); }
.story-stats span { font-size: var(--fs-xs); color: var(--c-text-muted); text-transform: uppercase; letter-spacing: .08em; font-weight: 600; }

.office-card { padding: 0; }
.office-card .office-media { position: relative; height: 190px; overflow: hidden; background: var(--c-dark); }
.office-card .office-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.office-card:hover .office-media img { transform: scale(1.06); }
.office-media.pattern {
    background:
        radial-gradient(circle at 30% 30%, rgba(56, 189, 248, .45), transparent 50%),
        radial-gradient(circle at 75% 70%, rgba(14, 165, 233, .35), transparent 55%), var(--c-dark);
}
.office-media.pattern::after {
    content: ""; position: absolute; inset: 0; opacity: .18;
    background-image: radial-gradient(rgba(255, 255, 255, .9) 1px, transparent 1px); background-size: 18px 18px;
}
.office-media .city {
    position: absolute; left: 1.25rem; bottom: 1rem; z-index: 2; font-family: var(--font-display);
    font-size: var(--fs-2xl); color: var(--c-white); font-weight: 800; text-shadow: 0 2px 12px rgba(0, 0, 0, .5);
}
.office-tag {
    position: absolute; top: 1rem; right: 1rem; z-index: 2; background: var(--c-teal); color: var(--c-white);
    font-size: .7rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; padding: .3rem .7rem; border-radius: 999px;
}
.office-tag.new { background: var(--c-white); color: var(--c-dark); }
.office-body { padding: 1.5rem 1.6rem 1.75rem; display: flex; flex-direction: column; gap: .9rem; flex: 1; }
.office-body address { font-style: normal; font-size: var(--fs-sm); color: var(--c-text); line-height: 1.6; }
.office-body .focus { font-size: var(--fs-sm); }
.office-meta { font-size: var(--fs-xs); color: var(--c-text-muted); display: flex; flex-direction: column; gap: .25rem; padding-top: .9rem; border-top: 1px dashed var(--c-border); }
.office-meta b { color: var(--c-dark); font-weight: 600; }

.team-card { text-align: center; align-items: center; }
.team-avatar {
    width: 120px; height: 120px; border-radius: 50%; margin-bottom: 1.25rem; display: grid; place-items: center;
    background: linear-gradient(135deg, var(--c-dark) 0%, var(--c-mid) 100%); color: var(--c-teal-light);
    font-family: var(--font-display); font-size: 2.2rem; font-weight: 800; position: relative;
    box-shadow: 0 0 0 5px var(--c-white), 0 0 0 7px rgba(14, 165, 233, .35);
}
.team-card .role { font-size: var(--fs-xs); text-transform: uppercase; letter-spacing: .12em; color: var(--c-teal-deep); font-weight: 600; margin-bottom: .9rem; }

/* ---------- AI: framework, industries, FAQ ---------- */
.framework { display: grid; gap: 1.25rem; counter-reset: step; position: relative; }
.step {
    position: relative; padding: 2rem 1.5rem; border-radius: var(--radius); background: rgba(255, 255, 255, .04);
    border: 1px solid rgba(255, 255, 255, .1); transition: background .3s, transform .3s var(--ease);
}
.step:hover { background: rgba(14, 165, 233, .08); transform: translateY(-4px); }
.step-num {
    width: 54px; height: 54px; border-radius: 50%; display: grid; place-items: center; margin-bottom: 1.25rem;
    background: linear-gradient(135deg, var(--c-teal), var(--c-teal-light)); color: var(--c-white);
    font-family: var(--font-display); font-weight: 800; font-size: var(--fs-lg);
    box-shadow: 0 0 0 6px rgba(14, 165, 233, .15);
}
.step h3 { color: var(--c-white); margin-bottom: .6rem; }
.step ul { margin-top: 1rem; display: grid; gap: .35rem; }
.step li { font-size: var(--fs-xs); color: #94a3b8; padding-left: 1rem; position: relative; }
.step li::before { content: "›"; position: absolute; left: 0; color: var(--c-teal-light); }

.industry {
    display: flex; gap: 1rem; align-items: flex-start; padding: 1.5rem; border-radius: var(--radius);
    background: var(--c-white); border: 1px solid var(--c-border); transition: box-shadow .3s, transform .3s var(--ease);
}
.industry:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.industry .icon { margin: 0; flex: none; width: 48px; height: 48px; }
.industry .icon svg { width: 24px; height: 24px; }
.industry h3 { font-size: var(--fs-lg); margin-bottom: .35rem; }
.industry p { font-size: var(--fs-sm); }

.faq { max-width: 860px; margin: 0 auto; display: grid; gap: .9rem; }
.faq-item { border: 1px solid var(--c-border); border-radius: var(--radius); background: var(--c-white); overflow: hidden; transition: border-color .25s, box-shadow .25s; }
.faq-item.open { border-color: var(--c-teal); box-shadow: var(--shadow-sm); }
.faq-q {
    width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 1rem; text-align: left;
    padding: 1.25rem 1.5rem; background: none; border: 0; cursor: pointer; font-weight: 600; color: var(--c-dark); font-size: var(--fs-base);
}
.faq-q .plus { flex: none; width: 28px; height: 28px; border-radius: 50%; background: var(--c-bg-light); position: relative; transition: background .25s, transform .3s var(--ease); }
.faq-q .plus::before, .faq-q .plus::after { content: ""; position: absolute; left: 50%; top: 50%; width: 12px; height: 2px; margin: -1px 0 0 -6px; background: var(--c-teal-deep); }
.faq-q .plus::after { transform: rotate(90deg); transition: transform .3s var(--ease); }
.faq-item.open .plus { background: var(--c-teal); transform: rotate(180deg); }
.faq-item.open .plus::before, .faq-item.open .plus::after { background: var(--c-white); }
.faq-item.open .plus::after { transform: rotate(0); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .4s var(--ease); }
.faq-a p { padding: 0 1.5rem 1.4rem; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; gap: 2.5rem; }
.form-card { background: var(--c-white); border-radius: var(--radius-lg); padding: 2rem 1.5rem; box-shadow: var(--shadow); border: 1px solid var(--c-border); }
.form-card h2 { font-size: var(--fs-2xl); margin-bottom: .5rem; }
.form-card > p { margin-bottom: 1.75rem; }
.form-row { display: grid; gap: 1.1rem; grid-template-columns: 1fr; }
.form-group { display: flex; flex-direction: column; gap: .4rem; margin-bottom: 1.1rem; }
.form-row .form-group { margin-bottom: 0; }
.form-row + .form-group, .form-row + .form-row { margin-top: 1.1rem; }
.form-group label { font-size: var(--fs-sm); font-weight: 600; color: var(--c-dark); }
.form-group label .req { color: var(--c-teal-deep); }
.form-group label .opt { color: #94a3b8; font-weight: 400; font-size: var(--fs-xs); }
.form-control {
    width: 100%; padding: .85rem 1rem; border: 1.5px solid var(--c-border); border-radius: var(--radius-sm);
    background: var(--c-bg-light); font-size: var(--fs-base); transition: border-color .2s, box-shadow .2s, background .2s;
}
.form-control:hover { border-color: #cbd5e1; }
.form-control:focus { outline: none; border-color: var(--c-teal); background: var(--c-white); box-shadow: 0 0 0 4px rgba(14, 165, 233, .15); }
.form-control.invalid { border-color: var(--c-error); box-shadow: 0 0 0 4px rgba(239, 68, 68, .1); }
textarea.form-control { min-height: 150px; resize: vertical; }
select.form-control {
    appearance: none; -webkit-appearance: none; padding-right: 2.5rem; cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23475569' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat; background-position: right 1rem center; background-size: 16px;
}
.field-error { font-size: var(--fs-xs); color: var(--c-error); min-height: 0; }
.hp-field { position: absolute !important; left: -9999px !important; width: 1px; height: 1px; overflow: hidden; }
.form-consent { font-size: var(--fs-xs); color: var(--c-text-muted); margin: .5rem 0 1.5rem; }
.form-submit { width: 100%; }
.spinner { width: 18px; height: 18px; border: 2.5px solid rgba(255, 255, 255, .4); border-top-color: var(--c-white); border-radius: 50%; animation: spin .8s linear infinite; display: none; }
.btn.loading .spinner { display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }
.form-alert { display: none; padding: 1rem 1.2rem; border-radius: var(--radius-sm); margin-bottom: 1.25rem; font-size: var(--fs-sm); font-weight: 500; }
.form-alert.show { display: flex; gap: .6rem; align-items: flex-start; animation: fadeIn .4s var(--ease); }
.form-alert.success { background: #ecfdf5; color: #065f46; border: 1px solid #a7f3d0; }
.form-alert.error { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }

.contact-info h2 { font-size: var(--fs-2xl); margin-bottom: 1rem; }
.contact-info > p { margin-bottom: 2rem; }
.info-office { display: flex; gap: 1rem; padding: 1.25rem 0; border-bottom: 1px solid var(--c-border); }
.info-office:last-of-type { border-bottom: 0; }
.info-office .icon { margin: 0; width: 46px; height: 46px; flex: none; }
.info-office .icon svg { width: 22px; height: 22px; }
.info-office h3 { font-size: var(--fs-lg); margin-bottom: .25rem; display: flex; align-items: center; gap: .5rem; flex-wrap: wrap; }
.info-office h3 small { font-family: var(--font-body); font-size: .68rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--c-teal-deep); background: rgba(14, 165, 233, .1); padding: .15rem .5rem; border-radius: 999px; }
.info-office address { font-style: normal; font-size: var(--fs-sm); color: var(--c-text-muted); }
.info-box { margin-top: 1.75rem; padding: 1.5rem; border-radius: var(--radius); background: var(--c-dark); color: #cbd5e1; }
.info-box h3 { color: var(--c-white); font-size: var(--fs-lg); margin-bottom: .75rem; }
.info-box p { color: #94a3b8; font-size: var(--fs-sm); margin-bottom: .5rem; }
.info-box a { color: var(--c-teal-light); font-weight: 600; }

.map-placeholder {
    position: relative; height: 380px; border-radius: var(--radius-lg); overflow: hidden; background: var(--c-dark);
    background-image:
        linear-gradient(rgba(56, 189, 248, .08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(56, 189, 248, .08) 1px, transparent 1px);
    background-size: 36px 36px;
}
.map-placeholder svg.world { position: absolute; inset: 0; width: 100%; height: 100%; }
.map-pin { position: absolute; transform: translate(-50%, -100%); text-align: center; }
.map-pin .pin-dot { width: 16px; height: 16px; border-radius: 50%; background: var(--c-teal); margin: 0 auto; position: relative; box-shadow: 0 0 0 4px rgba(14, 165, 233, .3); }
.map-pin .pin-dot::after { content: ""; position: absolute; inset: -4px; border-radius: 50%; border: 2px solid var(--c-teal-light); animation: ping 2s infinite; }
@keyframes ping { 0% { transform: scale(1); opacity: 1; } 100% { transform: scale(2.6); opacity: 0; } }
.map-pin .pin-label { display: inline-block; margin-bottom: .5rem; background: var(--c-white); color: var(--c-dark); font-weight: 700; font-size: var(--fs-xs); padding: .3rem .7rem; border-radius: 999px; box-shadow: var(--shadow); white-space: nowrap; }
.map-caption { position: absolute; left: 1.25rem; bottom: 1.25rem; color: #94a3b8; font-size: var(--fs-xs); letter-spacing: .1em; text-transform: uppercase; }

/* ---------- Footer ---------- */
.site-footer { background: var(--c-dark); color: #94a3b8; padding-top: 4rem; font-size: var(--fs-sm); }
.footer-grid { display: grid; gap: 2.5rem; grid-template-columns: 1fr; padding-bottom: 3rem; }
.footer-logo { height: 44px; width: auto; margin-bottom: 1.25rem; }
.footer-brand p { color: #94a3b8; max-width: 340px; }
.footer-col h4 { color: var(--c-white); font-family: var(--font-body); font-size: var(--fs-xs); text-transform: uppercase; letter-spacing: .14em; margin-bottom: 1.1rem; font-weight: 600; }
.footer-col ul { display: grid; gap: .65rem; }
.footer-col a { color: #94a3b8; }
.footer-col a:hover { color: var(--c-teal-light); }
.footer-offices li { display: flex; flex-direction: column; }
.footer-offices strong { color: #e2e8f0; font-weight: 600; }
.footer-offices span { font-size: var(--fs-xs); }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .08); padding: 1.5rem 0; }
.footer-bottom-inner { display: flex; flex-direction: column; gap: .5rem; text-align: center; }
.footer-bottom p { color: #64748b; font-size: var(--fs-xs); }
.footer-tag { color: var(--c-teal-light) !important; font-weight: 600; letter-spacing: .06em; }

.back-to-top {
    position: fixed; right: 1.25rem; bottom: 1.25rem; z-index: 900; width: 46px; height: 46px; border-radius: 50%;
    border: 0; background: var(--c-teal); color: var(--c-white); font-size: 1.2rem; cursor: pointer; box-shadow: var(--shadow);
    opacity: 0; visibility: hidden; transform: translateY(12px); transition: all .3s var(--ease);
}
.back-to-top.show { opacity: 1; visibility: visible; transform: none; }
.back-to-top:hover { background: var(--c-teal-deep); }

/* ---------- Scroll animations ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.reveal-left { transform: translateX(-36px); }
.reveal.reveal-right { transform: translateX(36px); }
.reveal.visible { opacity: 1; transform: none; }
.delay-1 { transition-delay: .1s; } .delay-2 { transition-delay: .2s; } .delay-3 { transition-delay: .3s; }
.delay-4 { transition-delay: .4s; } .delay-5 { transition-delay: .5s; }
.no-js .reveal { opacity: 1; transform: none; }

/* ==========================================================================
   Breakpoints
   ========================================================================== */
@media (min-width: 600px) {
    .grid-2, .grid-3, .grid-4, .grid-5 { grid-template-columns: repeat(2, 1fr); }
    .sub-services { grid-template-columns: repeat(2, 1fr); }
    .form-row { grid-template-columns: 1fr 1fr; }
    .framework { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 768px) {
    :root { --section-y: 6rem; }
    .container { padding: 0 2rem; }
    .stats-inner { grid-template-columns: repeat(4, 1fr); }
    .stat { border-bottom: 0; border-right: 1px solid var(--c-border); }
    .stat:last-child { border-right: 0; }
    .story-stats { grid-template-columns: repeat(4, 1fr); }
    .form-card { padding: 2.75rem; }
    .cta-banner { padding: 4.5rem 3rem; }
    .scroll-cue { display: block; }
    .footer-bottom-inner { flex-direction: row; justify-content: space-between; text-align: left; }
}

@media (min-width: 1024px) {
    .nav-toggle { display: none; }
    .nav-overlay { display: none; }
    .primary-nav {
        position: static; height: auto; width: auto; padding: 0; background: none; transform: none; box-shadow: none; overflow: visible;
    }
    .primary-nav ul { flex-direction: row; align-items: center; gap: .35rem; }
    .primary-nav a:not(.btn) { padding: .5rem .9rem; color: #e2e8f0; font-size: var(--fs-sm); background: none !important; }
    .primary-nav a:not(.btn)::after {
        content: ""; position: absolute; left: .9rem; right: .9rem; bottom: .2rem; height: 2px; background: var(--c-teal-light);
        transform: scaleX(0); transform-origin: left; transition: transform .3s var(--ease);
    }
    .primary-nav a:not(.btn):hover::after, .primary-nav a.active:not(.btn)::after { transform: scaleX(1); }
    .primary-nav a.active:not(.btn) { color: var(--c-white); }
    .primary-nav .nav-cta { margin: 0 0 0 .75rem; width: auto; }
    .primary-nav .nav-cta.active { background: var(--c-white); color: var(--c-dark); }

    .grid-3 { grid-template-columns: repeat(3, 1fr); }
    .grid-4 { grid-template-columns: repeat(4, 1fr); }
    .grid-5 { grid-template-columns: repeat(3, 1fr); }
    .framework { grid-template-columns: repeat(4, 1fr); }
    .framework::before {
        content: ""; position: absolute; top: calc(2rem + 27px); left: 12%; right: 12%; height: 2px; z-index: 0;
        background: linear-gradient(90deg, transparent, rgba(56, 189, 248, .5), transparent);
    }
    .step { z-index: 1; }
    .split { grid-template-columns: 1fr 1fr; gap: 4.5rem; }
    .split.reverse .split-media { order: 2; }
    .split.reverse .split-media::after { inset: auto auto -14px -14px; }
    .contact-grid { grid-template-columns: 1.35fr 1fr; gap: 3.5rem; align-items: start; }
    .footer-grid { grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 3rem; }
}

@media (min-width: 1280px) {
    .container { padding: 0 2.5rem; }
    .grid-5 { grid-template-columns: repeat(5, 1fr); }
    .grid-5 .industry { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
    .reveal { opacity: 1; transform: none; }
}