/* ==========================================================================
   RainaCorp — shared design system
   Warm charcoal base · single amber accent · Inter · screenshot-led
   ========================================================================== */

:root {
    --bg: #0f0e0c;
    --surface: #171510;
    --surface-2: #1e1b15;
    --border: rgba(236, 232, 225, 0.09);
    --border-strong: rgba(236, 232, 225, 0.16);
    --text: #ece8e1;
    --muted: #a39c8f;
    --accent: #d9a441;
    --accent-soft: rgba(217, 164, 65, 0.12);
    --green: #8db580;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: ui-monospace, 'SF Mono', Menlo, monospace;
    --radius: 12px;
    --maxw: 1100px;
}

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

html { scroll-behavior: smooth; }

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

h1, h2, h3, h4 { font-weight: 650; letter-spacing: -0.02em; line-height: 1.15; }

a { color: var(--text); text-decoration: none; transition: color 0.2s ease; }
a:hover { color: var(--accent); }

img { max-width: 100%; display: block; }

::selection { background: var(--accent-soft); color: var(--accent); }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 1.5rem; }

/* --- Nav ------------------------------------------------------------- */

nav {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 100;
    background: rgba(15, 14, 12, 0.8);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
}

.nav-inner {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 1.1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    font-weight: 700;
    font-size: 1.05rem;
    letter-spacing: -0.01em;
}

.nav-brand span { color: var(--accent); }

.nav-links {
    display: flex;
    gap: 2rem;
    font-size: 0.9rem;
    color: var(--muted);
}

.nav-links a { color: var(--muted); }
.nav-links a:hover { color: var(--text); }
.nav-links a.nav-cta { color: var(--accent); }

/* --- Typography helpers ---------------------------------------------- */

.eyebrow {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 1.25rem;
}

.section-title { font-size: clamp(1.8rem, 3vw, 2.4rem); margin-bottom: 1rem; }

.section-sub { color: var(--muted); max-width: 620px; font-size: 1.05rem; }

/* --- Buttons ---------------------------------------------------------- */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.8rem 1.6rem;
    border-radius: 8px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.25s ease;
}

.btn-primary { background: var(--text); color: var(--bg); }
.btn-primary:hover { background: #fff; color: var(--bg); transform: translateY(-1px); }

.btn-secondary { border-color: var(--border-strong); color: var(--text); }
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }

/* --- Status ----------------------------------------------------------- */

.status {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    font-size: 0.8rem;
    color: var(--muted);
}

.status::before {
    content: '';
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--green);
}

.status.dev::before { background: var(--accent); }
.status.case::before { background: var(--muted); }

/* --- Sections ---------------------------------------------------------- */

section { padding: 6rem 0; border-bottom: 1px solid var(--border); }
section:last-of-type { border-bottom: none; }

/* --- Hero (homepage) ---------------------------------------------------- */

.hero { padding: 11rem 0 7rem; border-bottom: 1px solid var(--border); }

.hero h1 {
    font-size: clamp(2.4rem, 5vw, 3.8rem);
    max-width: 800px;
    margin-bottom: 1.5rem;
}

.hero p { font-size: 1.15rem; color: var(--muted); max-width: 600px; margin-bottom: 2.5rem; }

.hero-buttons { display: flex; gap: 1rem; flex-wrap: wrap; }

/* --- Screenshot framing -------------------------------------------------- */

.shot {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--surface);
}

.shot img { width: 100%; height: 100%; object-fit: cover; object-position: top; }

/* --- Product cards (homepage) -------------------------------------------- */

.product-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-top: 3.5rem;
}

.product-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: border-color 0.25s ease, transform 0.25s ease;
}

.product-card:hover { border-color: var(--border-strong); transform: translateY(-3px); }
.product-card:hover .product-name { color: var(--accent); }

.product-card .shot { border: none; border-bottom: 1px solid var(--border); border-radius: 0; aspect-ratio: 16 / 9; }

.product-body { padding: 1.75rem; display: flex; flex-direction: column; gap: 0.6rem; flex: 1; }

.product-top { display: flex; justify-content: space-between; align-items: center; }

.product-name { font-size: 1.25rem; font-weight: 650; transition: color 0.25s ease; }

.product-body p { color: var(--muted); font-size: 0.95rem; }

.product-link { margin-top: auto; padding-top: 0.75rem; font-size: 0.9rem; font-weight: 600; color: var(--accent); }

/* --- Compact rows (lab) ---------------------------------------------------- */

.lab-list { margin-top: 3rem; display: flex; flex-direction: column; }

.lab-row {
    display: grid;
    grid-template-columns: 220px 1fr auto;
    gap: 2rem;
    align-items: center;
    padding: 1.75rem 1rem;
    border-top: 1px solid var(--border);
    border-radius: 8px;
    transition: background 0.25s ease;
}

.lab-row:hover { background: var(--surface); }
.lab-row:hover .lab-name { color: var(--accent); }

.lab-name { font-weight: 650; font-size: 1.1rem; transition: color 0.25s ease; }
.lab-desc { color: var(--muted); font-size: 0.95rem; }

/* --- About / stack ----------------------------------------------------------- */

.about-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 4rem; margin-top: 3rem; }

.about-grid h3 { font-size: 1.05rem; margin-bottom: 0.75rem; color: var(--accent); font-weight: 600; }

.about-grid p, .about-grid li { color: var(--muted); font-size: 0.98rem; }

.about-grid ul { list-style: none; }
.about-grid li { padding: 0.5rem 0; border-bottom: 1px solid var(--border); }
.about-grid li strong { color: var(--text); font-weight: 600; }

/* --- Contact band -------------------------------------------------------------- */

.contact-band { text-align: center; padding: 8rem 0; }

.contact-band h2 { font-size: clamp(2rem, 4vw, 3rem); max-width: 640px; margin: 0 auto 1.25rem; }

.contact-band p { color: var(--muted); margin-bottom: 2.5rem; }

/* --- Footer ----------------------------------------------------------------------- */

footer { border-top: 1px solid var(--border); padding: 3rem 0; }

.footer-inner {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 2rem;
    flex-wrap: wrap;
    font-size: 0.85rem;
    color: var(--muted);
}

.footer-links { display: flex; gap: 1.75rem; }
.footer-links a { color: var(--muted); }
.footer-links a:hover { color: var(--text); }

/* --- Project page ------------------------------------------------------------------- */

.page-hero { padding: 10rem 0 4rem; border-bottom: none; }

.crumb { font-size: 0.85rem; color: var(--muted); margin-bottom: 2.5rem; display: inline-block; }
.crumb:hover { color: var(--accent); }

.page-hero h1 { font-size: clamp(2.2rem, 4.5vw, 3.2rem); margin: 0.75rem 0 1.25rem; max-width: 760px; }

.page-hero .lede { font-size: 1.15rem; color: var(--muted); max-width: 640px; margin-bottom: 2rem; }

.meta-row {
    display: flex;
    gap: 2.5rem;
    flex-wrap: wrap;
    padding: 1.5rem 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    margin: 2.5rem 0;
    font-size: 0.9rem;
}

.meta-item span { display: block; color: var(--muted); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 0.2rem; }
.meta-item strong { font-weight: 600; }
.meta-item a { color: var(--accent); font-weight: 600; }

.hero-shot { margin-top: 1rem; }

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 3rem;
}

.feature {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.75rem;
}

.feature h3 { font-size: 1rem; margin-bottom: 0.6rem; font-weight: 600; }
.feature p { color: var(--muted); font-size: 0.92rem; }

.gallery { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; margin-top: 3rem; }

.prose { max-width: 720px; color: var(--muted); font-size: 1.05rem; }
.prose p + p { margin-top: 1.25rem; }
.prose strong { color: var(--text); }

/* --- Reveal animation ------------------------------------------------------------------ */

.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.16, 1, 0.3, 1); }
.reveal.active { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
    .reveal { opacity: 1; transform: none; transition: none; }
    html { scroll-behavior: auto; }
}

/* --- Toast -------------------------------------------------------------------------------- */

.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--surface-2);
    border: 1px solid var(--border-strong);
    color: var(--text);
    padding: 0.9rem 1.5rem;
    border-radius: 8px;
    font-size: 0.85rem;
    z-index: 1000;
    opacity: 0;
    transform: translateY(16px);
    transition: all 0.35s ease;
    pointer-events: none;
}

.toast.show { opacity: 1; transform: translateY(0); }

/* --- Responsive ------------------------------------------------------------------------------ */

@media (max-width: 900px) {
    .product-grid, .gallery { grid-template-columns: 1fr; }
    .feature-grid { grid-template-columns: 1fr 1fr; }
    .about-grid { grid-template-columns: 1fr; gap: 2.5rem; }
    .lab-row { grid-template-columns: 1fr; gap: 0.5rem; }
}

@media (max-width: 640px) {
    .nav-links { gap: 1.2rem; font-size: 0.82rem; }
    .nav-links a:not(.nav-cta):nth-child(n+4) { display: none; }
    .hero { padding: 9rem 0 5rem; }
    section { padding: 4rem 0; }
    .feature-grid { grid-template-columns: 1fr; }
    .meta-row { gap: 1.5rem; }
    .footer-inner { flex-direction: column; align-items: flex-start; }
}