/* ==========================================================================
   Blue Head Studios — site styles
   Mobile-first; the desktop container caps at 1200px.
   No inline styles anywhere (CSP style-src-attr 'none').
   ========================================================================== */

:root {
    --blue-600: #2563eb;
    --blue-700: #1d4ed8;
    --blue-50: #eff6ff;
    --blue-100: #dbeafe;
    --navy-900: #0f172a;
    --navy-800: #1e293b;
    --slate-600: #475569;
    --slate-500: #64748b;
    --slate-300: #cbd5e1;
    --slate-200: #e2e8f0;
    --slate-100: #f1f5f9;
    --slate-50: #f8fafc;
    --white: #ffffff;
    --red-600: #dc2626;
    --red-50: #fef2f2;

    --container: 1200px;
    --gutter: 1.25rem;
    --radius: 12px;
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06), 0 1px 3px rgba(15, 23, 42, 0.08);
    --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.10);
    --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

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

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

body {
    margin: 0;
    font-family: var(--font);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--navy-800);
    background: var(--white);
}

img, svg { display: block; max-width: 100%; height: auto; }

h1, h2, h3, h4 {
    color: var(--navy-900);
    line-height: 1.15;
    margin: 0 0 0.6em;
    letter-spacing: -0.015em;
}
h1 { font-size: clamp(2rem, 5vw, 3.25rem); font-weight: 800; }
h2 { font-size: clamp(1.5rem, 3.2vw, 2.125rem); font-weight: 700; }
h3 { font-size: 1.2rem; font-weight: 700; }
p { margin: 0 0 1em; }
a { color: var(--blue-700); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--blue-600); }
ul, ol { margin: 0 0 1em; padding-left: 1.25em; }

.container {
    width: 100%;
    max-width: var(--container);
    margin-inline: auto;
    padding-inline: var(--gutter);
}
.narrow { max-width: 780px; }

.visually-hidden {
    position: absolute !important;
    width: 1px; height: 1px;
    padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0 0 0 0);
    white-space: nowrap; border: 0;
}

.skip-link {
    position: absolute; left: 1rem; top: -4rem;
    background: var(--navy-900); color: var(--white);
    padding: 0.5rem 0.75rem; border-radius: 6px; z-index: 100;
}
.skip-link:focus { top: 1rem; }

.eyebrow {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--blue-700);
    margin-bottom: 0.75rem;
}
.lead { font-size: 1.15rem; color: var(--slate-600); max-width: 62ch; }

/* Buttons ---------------------------------------------------------------- */
.btn {
    display: inline-flex; align-items: center; gap: 0.5rem;
    padding: 0.8rem 1.4rem;
    border-radius: 999px;
    font-weight: 600;
    text-decoration: none;
    border: 2px solid transparent;
    cursor: pointer;
    transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease, transform 0.1s ease;
    line-height: 1.2;
    font-family: inherit;
    font-size: 1rem;
}
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--blue-600); color: var(--white); }
.btn--primary:hover { background: var(--blue-700); color: var(--white); }
.btn--ghost { background: transparent; color: var(--navy-900); border-color: var(--slate-300); }
.btn--ghost:hover { border-color: var(--navy-900); color: var(--navy-900); }
.btn--light { background: var(--white); color: var(--blue-700); }
.btn--light:hover { background: var(--blue-50); color: var(--blue-700); }
.btn--small { padding: 0.55rem 1.1rem; font-size: 0.95rem; }
.btn .icon { width: 18px; height: 18px; }

.link-arrow { display: inline-flex; align-items: center; gap: 0.4rem; font-weight: 600; text-decoration: none; }
.link-arrow .icon { width: 18px; height: 18px; transition: transform 0.15s ease; }
.link-arrow:hover .icon { transform: translateX(3px); }

/* Header ----------------------------------------------------------------- */
.site-header {
    position: sticky; top: 0; z-index: 50;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: saturate(180%) blur(8px);
    border-bottom: 1px solid var(--slate-200);
}
.site-header__inner {
    display: flex; align-items: center; justify-content: space-between;
    min-height: 68px; gap: 1rem;
}
.brand { display: inline-flex; align-items: center; gap: 0.6rem; text-decoration: none; color: var(--navy-900); }
.brand__mark { width: 40px; height: 40px; }
.brand__name { font-weight: 800; font-size: 1.15rem; letter-spacing: -0.01em; }
.brand__name span { color: var(--blue-600); }

.nav-toggle {
    display: inline-flex; flex-direction: column; justify-content: center; gap: 5px;
    width: 44px; height: 44px; padding: 10px;
    background: transparent; border: 0; cursor: pointer; border-radius: 8px;
}
.nav-toggle:hover { background: var(--slate-100); }
.nav-toggle__bar { display: block; width: 24px; height: 2px; background: var(--navy-900); border-radius: 2px; transition: transform 0.2s ease, opacity 0.2s ease; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.site-nav {
    display: none;
    position: absolute; left: 0; right: 0; top: 100%;
    background: var(--white);
    border-bottom: 1px solid var(--slate-200);
    box-shadow: var(--shadow-md);
    padding: 0.75rem var(--gutter) 1.25rem;
    flex-direction: column; gap: 0.25rem;
}
.site-nav.is-open { display: flex; }
.site-nav a {
    padding: 0.7rem 0.5rem;
    text-decoration: none; font-weight: 600; color: var(--navy-800);
    border-radius: 8px;
}
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--blue-700); background: var(--blue-50); }
.site-nav .btn { justify-content: center; margin-top: 0.5rem; color: var(--white); }
.site-nav .btn:hover { background: var(--blue-700); color: var(--white); }

@media (min-width: 820px) {
    .nav-toggle { display: none; }
    .site-nav {
        display: flex; position: static; flex-direction: row; align-items: center; gap: 0.25rem;
        background: transparent; border: 0; box-shadow: none; padding: 0;
    }
    .site-nav a { padding: 0.5rem 0.9rem; }
    .site-nav .btn { margin: 0 0 0 0.5rem; }
}

/* Hero ------------------------------------------------------------------- */
.hero {
    background: radial-gradient(1200px 500px at 85% -10%, var(--blue-100) 0%, transparent 60%), var(--slate-50);
    border-bottom: 1px solid var(--slate-200);
    padding: 3.5rem 0 3rem;
}
.hero__inner { display: grid; gap: 2.5rem; align-items: center; }
.hero__copy h1 { margin-bottom: 1rem; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin: 1.5rem 0; }
.hero__proof { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.4rem; color: var(--slate-600); font-size: 0.95rem; }
.hero__proof li { display: flex; align-items: center; gap: 0.5rem; }
.hero__proof .icon { width: 18px; height: 18px; color: var(--blue-600); flex: none; }
.hero__art { display: none; }
.hero__art img { width: 100%; max-width: 320px; margin-inline: auto; filter: drop-shadow(0 20px 30px rgba(37, 99, 235, 0.25)); }
@media (min-width: 900px) {
    .hero { padding: 5rem 0 4.5rem; }
    .hero__inner { grid-template-columns: 1.4fr 1fr; }
    .hero__art { display: block; }
}

.page-hero {
    background: var(--slate-50);
    border-bottom: 1px solid var(--slate-200);
    padding: 3rem 0 2.5rem;
}
.page-hero--center { text-align: center; padding: 5rem 0; }
.page-hero--center .lead { margin-inline: auto; }
@media (min-width: 900px) { .page-hero { padding: 4rem 0 3.5rem; } }
.page-hero__media { margin: 2rem 0 0; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--slate-200); box-shadow: var(--shadow-md); background: var(--white); }
.page-hero__media img { width: 100%; height: auto; }
.page-hero__media figcaption { font-size: 0.85rem; color: var(--slate-500); padding: 0.5rem 0.9rem; border-top: 1px solid var(--slate-200); }

/* Sections --------------------------------------------------------------- */
.section { padding: 3.5rem 0; }
.section--alt { background: var(--slate-50); border-top: 1px solid var(--slate-200); border-bottom: 1px solid var(--slate-200); }
.section__header { max-width: 720px; margin-bottom: 2rem; }
.section__intro { color: var(--slate-600); font-size: 1.05rem; }
.section__more { margin-top: 2rem; }
@media (min-width: 900px) { .section { padding: 5rem 0; } }

.grid { display: grid; gap: 1.25rem; }
@media (min-width: 640px) { .grid--2, .grid--3 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px) { .grid--3 { grid-template-columns: repeat(3, 1fr); } }

.card {
    background: var(--white);
    border: 1px solid var(--slate-200);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
}
.card h3 { margin-top: 0; }
.card h3 a { color: inherit; text-decoration: none; }
.card h3 a:hover { color: var(--blue-700); }
.card p:last-child { margin-bottom: 0; color: var(--slate-600); }

.service-card__icon {
    width: 48px; height: 48px; border-radius: 10px;
    display: grid; place-items: center;
    background: var(--blue-50); color: var(--blue-700);
    margin-bottom: 1rem;
}

.showcase-card { padding: 0; overflow: hidden; }
.showcase-card__media { display: block; aspect-ratio: 16 / 10; overflow: hidden; background: var(--slate-100); border-bottom: 1px solid var(--slate-200); }
.showcase-card__media img { width: 100%; height: 100%; object-fit: cover; object-position: top; transition: transform 0.3s ease; }
.showcase-card__media:hover img { transform: scale(1.02); }
.showcase-card h3 { margin: 1.25rem 1.5rem 0.5rem; }
.showcase-card p { margin: 0 1.5rem 1.5rem; }

/* Steps ------------------------------------------------------------------ */
.steps { list-style: none; padding: 0; margin: 0; display: grid; gap: 1.25rem; counter-reset: step; }
.steps__item { position: relative; padding: 1.5rem 1.5rem 1.5rem 4.25rem; border: 1px solid var(--slate-200); border-radius: var(--radius); background: var(--white); }
.steps__num {
    position: absolute; left: 1.25rem; top: 1.4rem;
    width: 2rem; height: 2rem; border-radius: 50%;
    display: grid; place-items: center;
    background: var(--blue-600); color: var(--white); font-weight: 700; font-size: 0.95rem;
}
.steps__item h3 { margin-bottom: 0.35rem; }
.steps__item p { margin: 0; color: var(--slate-600); }
@media (min-width: 900px) { .steps { grid-template-columns: repeat(4, 1fr); } .steps__item { padding: 3.5rem 1.5rem 1.5rem; } .steps__num { left: 1.5rem; top: 1.25rem; } }

/* Stack ------------------------------------------------------------------ */
.stack__list { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 0.6rem; }
.stack__list li {
    padding: 0.5rem 0.9rem; border-radius: 999px;
    background: var(--white); border: 1px solid var(--slate-300);
    font-weight: 600; font-size: 0.95rem; color: var(--navy-800);
}

/* CTA band --------------------------------------------------------------- */
.cta-band { background: linear-gradient(135deg, var(--blue-700), var(--blue-600)); color: var(--white); padding: 3rem 0; }
.cta-band__inner { display: flex; flex-direction: column; gap: 1.25rem; align-items: flex-start; }
.cta-band h2 { color: var(--white); margin-bottom: 0.35rem; }
.cta-band p { margin: 0; color: rgba(255, 255, 255, 0.9); }
@media (min-width: 820px) { .cta-band__inner { flex-direction: row; justify-content: space-between; align-items: center; } }

/* Services page ---------------------------------------------------------- */
.toc { margin-bottom: 2.5rem; }
.toc ul { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 0.5rem; }
.toc a { display: inline-block; padding: 0.4rem 0.85rem; border-radius: 999px; background: var(--blue-50); text-decoration: none; font-weight: 600; font-size: 0.9rem; }
.toc a:hover { background: var(--blue-100); }

.service-detail { display: grid; gap: 1rem; padding: 2rem 0; border-top: 1px solid var(--slate-200); scroll-margin-top: 90px; }
.service-detail:last-of-type { border-bottom: 1px solid var(--slate-200); }
.service-detail__icon { width: 56px; height: 56px; border-radius: 12px; display: grid; place-items: center; background: var(--blue-50); color: var(--blue-700); }
.service-detail__icon .icon { width: 32px; height: 32px; }
.service-detail__summary { font-size: 1.05rem; color: var(--slate-600); }
@media (min-width: 760px) { .service-detail { grid-template-columns: 80px 1fr; gap: 2rem; padding: 2.5rem 0; } }

.checklist { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.5rem; }
.checklist li { display: flex; align-items: flex-start; gap: 0.6rem; }
.checklist .icon { width: 20px; height: 20px; color: var(--blue-600); flex: none; margin-top: 0.2rem; }
.checklist--numbered { list-style: decimal; padding-left: 1.25rem; }
.checklist--numbered li { display: list-item; }

/* Work page -------------------------------------------------------------- */
.stats { display: grid; gap: 1rem; margin: 2rem 0 0; }
.stats div { padding: 1rem 1.25rem; background: var(--white); border: 1px solid var(--slate-200); border-radius: var(--radius); }
.stats dt { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--slate-500); font-weight: 700; }
.stats dd { margin: 0.25rem 0 0; font-weight: 600; color: var(--navy-900); }
@media (min-width: 640px) { .stats { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .stats { grid-template-columns: repeat(4, 1fr); } }

.feature { display: grid; gap: 1.5rem; padding: 2.5rem 0; border-top: 1px solid var(--slate-200); scroll-margin-top: 90px; align-items: center; }
.feature:first-of-type { border-top: 0; padding-top: 0; }
.feature__media { margin: 0; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--slate-200); box-shadow: var(--shadow-md); background: var(--slate-100); }
.feature__media img { width: 100%; height: auto; }
.feature__body p { color: var(--slate-600); }
@media (min-width: 900px) {
    .feature { grid-template-columns: 1.25fr 1fr; gap: 3rem; padding: 3.5rem 0; }
    .feature--flip .feature__media { order: 2; }
    .feature--flip .feature__body { order: 1; }
}

/* Contact ---------------------------------------------------------------- */
.contact { display: grid; gap: 2.5rem; }
@media (min-width: 960px) { .contact { grid-template-columns: 1.5fr 1fr; gap: 4rem; } }
.contact__aside h2 { font-size: 1.1rem; margin-top: 0; }
.contact__aside h2 + * { margin-bottom: 1.75rem; }
.contact__protected { display: flex; align-items: center; gap: 0.5rem; font-size: 0.9rem; color: var(--slate-500); margin-top: 1.5rem; }
.contact__protected .icon { width: 20px; height: 20px; color: var(--blue-600); flex: none; }

.form { display: grid; gap: 1.1rem; }
.form__row { display: grid; gap: 1.1rem; }
@media (min-width: 640px) { .form__row--2 { grid-template-columns: 1fr 1fr; } }
.form__group { display: grid; gap: 0.35rem; }
.form label { font-weight: 600; font-size: 0.95rem; color: var(--navy-900); }
.form input[type="text"], .form input[type="email"], .form input[type="tel"], .form select, .form textarea {
    width: 100%;
    padding: 0.7rem 0.85rem;
    border: 1px solid var(--slate-300);
    border-radius: 8px;
    font: inherit; color: var(--navy-900); background: var(--white);
}
.form input:focus, .form select:focus, .form textarea:focus { outline: 2px solid var(--blue-600); outline-offset: 1px; border-color: var(--blue-600); }
.form textarea { resize: vertical; min-height: 160px; }
.form ul { list-style: none; padding: 0; margin: 0; color: var(--red-600); font-size: 0.9rem; }
.form__group--hp { position: absolute !important; left: -10000px; top: auto; width: 1px; height: 1px; overflow: hidden; }
.form__group--turnstile { min-height: 65px; }
.form__consent { font-size: 0.9rem; color: var(--slate-500); margin: 0; }
.form .btn { justify-self: start; }

.alert { padding: 0.9rem 1.1rem; border-radius: 8px; margin-bottom: 1.25rem; font-weight: 500; }
.alert--error { background: var(--red-50); color: var(--red-600); border: 1px solid #fecaca; }

/* Legal / prose ---------------------------------------------------------- */
.prose { color: var(--navy-800); }
.prose h2 { font-size: 1.4rem; margin-top: 2.25rem; }
.prose h3 { font-size: 1.1rem; margin-top: 1.75rem; }
.prose p, .prose li { line-height: 1.7; }
.prose table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; font-size: 0.95rem; display: block; overflow-x: auto; }
.prose th, .prose td { text-align: left; padding: 0.6rem 0.75rem; border: 1px solid var(--slate-200); vertical-align: top; }
.prose th { background: var(--slate-50); }
.prose blockquote { margin: 1.5rem 0; padding: 0.75rem 1.25rem; border-left: 4px solid var(--blue-600); background: var(--blue-50); }
.prose code { background: var(--slate-100); padding: 0.1em 0.35em; border-radius: 4px; font-size: 0.9em; }

/* Footer ----------------------------------------------------------------- */
.site-footer { background: var(--navy-900); color: var(--slate-300); padding: 3rem 0 2rem; margin-top: auto; }
.site-footer__inner { display: grid; gap: 2rem; }
.site-footer .brand { color: var(--white); }
.site-footer .brand__name span { color: #93c5fd; }
.site-footer__tagline { max-width: 38ch; margin-top: 1rem; color: var(--slate-300); }
.site-footer__nav { display: flex; flex-wrap: wrap; gap: 2.5rem; }
.site-footer__nav ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.6rem; }
.site-footer__nav a { color: var(--white); text-decoration: none; font-weight: 500; }
.site-footer__nav a:hover { color: #93c5fd; text-decoration: underline; }
.site-footer__copyright { grid-column: 1 / -1; margin: 0; padding-top: 1.5rem; border-top: 1px solid var(--navy-800); font-size: 0.9rem; color: var(--slate-500); }
@media (min-width: 820px) { .site-footer__inner { grid-template-columns: 1.5fr 1fr; } }

/* Reduced motion --------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { transition: none !important; }
}