/* SIMEC AUTOMATION — main stylesheet
   Vanilla CSS, mobile-first. No frameworks.
*/

/* ---------- Tokens (dark theme) ---------- */
:root {
  --c-bg: #0a0c10;           /* page background — near black */
  --c-bg-alt: #111418;       /* alternating sections — slightly lighter */
  --c-bg-card: #161a1f;      /* card surface */
  --c-ink: #f1f3f5;          /* primary text — near white */
  --c-ink-soft: #c8ced6;     /* secondary text */
  --c-muted: #8a929c;        /* muted text */
  --c-line: #232830;         /* dividers / borders */
  --c-brand: #e1142e;        /* SIMEC red, slightly brighter for dark bg */
  --c-brand-dark: #b30f24;
  --c-brand-soft: rgba(225, 20, 46, 0.14);
  --c-accent: #111418;
  --c-dark: #050608;         /* deepest black for footer */
  --c-success: #1f9d55;

  --r-sm: 6px;
  --r-md: 12px;
  --r-lg: 20px;

  --shadow-sm: 0 1px 2px rgba(15, 37, 64, 0.06), 0 1px 3px rgba(15, 37, 64, 0.05);
  --shadow-md: 0 6px 16px rgba(15, 37, 64, 0.08);
  --shadow-lg: 0 20px 50px rgba(15, 37, 64, 0.18);

  --container: 1200px;
  --gap: 1.25rem;

  --t-fast: 150ms ease;
  --t-med: 300ms ease;

  --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--c-ink);
  background: var(--c-bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; background: transparent; color: inherit; }
ul { list-style: none; padding: 0; margin: 0; }
h1, h2, h3, h4 { line-height: 1.15; margin: 0 0 .5em; letter-spacing: -0.01em; }
p { margin: 0 0 1em; color: var(--c-ink-soft); }
:focus-visible { outline: 3px solid var(--c-brand); outline-offset: 2px; border-radius: 4px; }

/* ---------- Layout helpers ---------- */
.container { width: min(100% - 2rem, var(--container)); margin-inline: auto; }
.section { padding: clamp(3rem, 6vw, 6rem) 0; }
.section--alt { background: var(--c-bg-alt); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 3rem; }
.section-head .kicker { color: var(--c-brand); font-weight: 600; letter-spacing: .12em; font-size: .8rem; text-transform: uppercase; }
.section-head h2 { font-size: clamp(1.75rem, 3vw, 2.5rem); }
.grid { display: grid; gap: var(--gap); }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 420px), 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr)); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .85rem 1.4rem;
  border-radius: 999px;
  font-weight: 600;
  letter-spacing: .01em;
  transition: transform var(--t-fast), background var(--t-med), color var(--t-med), box-shadow var(--t-med);
  white-space: nowrap;
}
.btn--primary { background: var(--c-brand); color: #fff; box-shadow: var(--shadow-md); }
.btn--primary:hover { background: var(--c-brand-dark); transform: translateY(-1px); }
.btn--ghost { color: #fff; border: 1.5px solid rgba(255,255,255,.7); }
.btn--ghost:hover { background: rgba(255,255,255,.1); }
.btn--outline { color: var(--c-brand); border: 1.5px solid var(--c-brand); }
.btn--outline:hover { background: var(--c-brand); color: #fff; }
.btn--lg { padding: 1rem 1.6rem; font-size: 1.05rem; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 12, 16, 0.85);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid transparent;
  transition: box-shadow var(--t-med), border-color var(--t-med), background var(--t-med);
}
.site-header.is-scrolled { background: rgba(10, 12, 16, 0.95); border-color: var(--c-line); }
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding: .9rem 0;
}
.brand { display: flex; align-items: center; gap: .65rem; }
.brand img { height: 38px; width: auto; }
.brand-text { font-weight: 800; letter-spacing: .04em; color: #fff; }

.site-nav { display: flex; align-items: center; gap: 1.5rem; }
.site-nav ul { display: flex; gap: 1.4rem; align-items: center; }
.site-nav a { font-weight: 600; color: var(--c-brand); padding: .5rem 0; position: relative; letter-spacing: .04em; text-transform: uppercase; font-size: .9rem; }
.site-nav a:hover { color: #fff; }
.site-nav a.btn,
.site-nav a.btn--primary { color: #fff; text-transform: none; letter-spacing: .01em; padding: .85rem 1.4rem; }
.site-nav a.btn:hover { color: #fff; }

/* Water Treatment — accent in cyan/blue for visual contrast against the red brand */
.site-nav a[data-nav="water"] {
  color: #0ea5e9;                           /* sky blue */
  text-shadow: 0 0 16px rgba(14, 165, 233, 0.35);
}
.site-nav a[data-nav="water"]:hover { color: #38bdf8; }   /* slightly lighter on hover */
.site-nav a[data-nav="water"].is-active { color: #38bdf8; }
.site-nav a[data-nav="water"].is-active::after { background: #0ea5e9; }

.has-dropdown { position: relative; }
.has-dropdown > a::after { content: "▾"; margin-left: .35rem; font-size: .75em; opacity: .7; }
.dropdown {
  position: absolute; top: 100%; left: -1rem; min-width: 240px;
  background: var(--c-bg-card); border: 1px solid var(--c-line); border-radius: var(--r-md);
  box-shadow: var(--shadow-lg); padding: .5rem;
  opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: opacity var(--t-fast), transform var(--t-fast), visibility var(--t-fast);
}
.has-dropdown:hover > .dropdown,
.has-dropdown.is-open > .dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown a { display: block; padding: .65rem .85rem; border-radius: var(--r-sm); text-transform: none; letter-spacing: 0; font-size: .92rem; color: var(--c-ink-soft); }
.dropdown a:hover { background: var(--c-brand-soft); color: var(--c-brand); }

.lang-switch { display: inline-flex; gap: .25rem; padding: .25rem; background: var(--c-bg-card); border: 1px solid var(--c-line); border-radius: 999px; }
.lang-switch button {
  padding: .35rem .75rem; border-radius: 999px; font-size: .85rem; font-weight: 600; color: var(--c-muted);
}
.lang-switch button.is-active { background: var(--c-brand); color: #fff; }

.nav-toggle {
  display: none;
  width: 42px; height: 42px;
  border-radius: var(--r-sm);
  position: relative;
}
.nav-toggle span,
.nav-toggle::before,
.nav-toggle::after {
  content: ""; position: absolute; left: 10px; right: 10px; height: 2px; background: #fff; border-radius: 2px;
  transition: transform var(--t-fast), top var(--t-fast), opacity var(--t-fast);
}
.nav-toggle::before { top: 14px; }
.nav-toggle span { top: 20px; }
.nav-toggle::after { top: 26px; }

@media (max-width: 900px) {
  .nav-toggle { display: block; }
  .site-nav {
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--c-bg); border-bottom: 1px solid var(--c-line);
    flex-direction: column; align-items: stretch; gap: 0;
    padding: 1rem; box-shadow: var(--shadow-lg);
    display: none;
  }
  .site-nav.is-open { display: flex; }
  .site-nav ul { flex-direction: column; align-items: stretch; gap: 0; }
  .site-nav ul li a { display: block; padding: .85rem 0; border-bottom: 1px solid var(--c-line); }
  .dropdown {
    position: static; box-shadow: none; border: 0; padding-left: 1rem;
    opacity: 1; visibility: visible; transform: none; display: none; min-width: 0;
  }
  .has-dropdown.is-open > .dropdown { display: block; }
  .lang-switch { align-self: flex-start; margin-top: .5rem; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative; isolation: isolate;
  min-height: clamp(520px, 78vh, 760px);
  display: grid; place-items: center;
  color: #fff; text-align: center; overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(10,12,16,.72) 0%, rgba(10,12,16,.82) 100%),
    radial-gradient(ellipse at 30% 40%, rgba(200,16,46,.35), transparent 60%),
    url("../img/uploads/canva-hero.jpg") center/cover no-repeat;
  z-index: -1;
}
.hero-inner { padding: 6rem 1rem; max-width: 880px; }
.hero .tagline {
  display: inline-block; font-weight: 700; letter-spacing: .35em; font-size: .85rem;
  padding: .4rem .9rem; border: 1px solid rgba(255,255,255,.5); border-radius: 999px; margin-bottom: 1.5rem;
}
.hero h1 { font-size: clamp(2rem, 5vw, 3.6rem); }
.hero p { color: rgba(255,255,255,.9); font-size: 1.1rem; margin-bottom: 2rem; }
.hero-actions { display: inline-flex; flex-wrap: wrap; gap: .85rem; justify-content: center; }

/* ---------- Category cards ---------- */
.cat-card {
  background: var(--c-bg-card); border: 1px solid var(--c-line); border-radius: var(--r-lg);
  padding: 2rem 1.5rem; text-align: center;
  transition: transform var(--t-med), box-shadow var(--t-med), border-color var(--t-med), background var(--t-med);
}
.cat-card:hover { transform: translateY(-4px); border-color: var(--c-brand); background: #1a1f26; }
.cat-card .icon {
  width: 72px; height: 72px; margin: 0 auto 1rem;
  display: grid; place-items: center;
  background: var(--c-brand-soft); border-radius: 50%;
}
.cat-card .icon img { filter: brightness(0) invert(1); }
.cat-card .icon img { width: 36px; height: 36px; }
.cat-card h3 { font-size: 1.2rem; }
.cat-card p { font-size: .95rem; margin: 0; }

/* ---------- About ---------- */
.about { display: grid; gap: 2.5rem; grid-template-columns: 1fr; align-items: center; }
@media (min-width: 900px) { .about { grid-template-columns: 1fr 1fr; } }
.about-img { border-radius: var(--r-lg); overflow: hidden; box-shadow: var(--shadow-lg); }
.about-img img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.about .kicker { color: var(--c-brand); font-weight: 700; letter-spacing: .12em; font-size: .85rem; text-transform: uppercase; }
.about h2 { font-size: clamp(1.75rem, 3vw, 2.4rem); margin-top: .5rem; }

/* ---------- Banner / CTA band ---------- */
.banner {
  position: relative; isolation: isolate; color: #fff; padding: 4rem 0;
  border-radius: var(--r-lg); overflow: hidden;
}
.banner::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(ellipse at 80% 50%, rgba(200,16,46,.35), transparent 60%),
    linear-gradient(135deg, #0a0c10, #1a1d22);
}
.banner--water::before {
  background: linear-gradient(135deg, rgba(10,12,16,.85), rgba(10,12,16,.65)),
              url("../img/uploads/simec-water-solution-1024x278.png") center/cover no-repeat;
}
.banner-grid { display: grid; gap: 1.5rem; grid-template-columns: 1fr; align-items: center; }
@media (min-width: 760px) { .banner-grid { grid-template-columns: 1.6fr auto; } }
.banner h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); }
.banner p { color: rgba(255,255,255,.9); margin: 0; }

/* ---------- Clients strip ---------- */
.clients-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 2rem; align-items: center; justify-items: center;
}
.clients-strip img {
  max-height: 60px; max-width: 140px; object-fit: contain;
  filter: brightness(0) invert(1) opacity(.55);
  transition: filter var(--t-med), transform var(--t-med), color var(--t-med);
}
.clients-strip img:hover { filter: brightness(0) invert(1) opacity(1); transform: scale(1.05); }

/* SVG client logos already render in white (hardcoded fill) for dark theme;
   skip the brightness/invert filter, use only opacity. */
.clients-strip img[src$=".svg"] { filter: opacity(.55); }
.clients-strip img[src$=".svg"]:hover { filter: opacity(1); transform: scale(1.05); }

/* ---------- Projects preview ---------- */
.proj-list { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); }
.proj-card {
  border: 1px solid var(--c-line); border-radius: var(--r-md); padding: 1.25rem 1.5rem;
  background: var(--c-bg-card); transition: transform var(--t-med), border-color var(--t-med), background var(--t-med);
}
.proj-card:hover { transform: translateY(-2px); border-color: var(--c-brand); background: #1a1f26; }
.proj-card .tag { display: inline-block; font-size: .7rem; letter-spacing: .12em; text-transform: uppercase; color: var(--c-brand); font-weight: 700; }
.proj-card h3 { font-size: 1.05rem; margin: .35rem 0 .35rem; }
.proj-card p { font-size: .9rem; margin: 0; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--c-dark); color: #c8d0db; padding: 4rem 0 1.5rem;
  position: relative;
}
.site-footer::before {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 3px;
  background: linear-gradient(90deg, transparent, var(--c-brand), transparent);
}
.footer-grid {
  display: grid; gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr));
}
.site-footer h4 { color: #fff; font-size: 1rem; margin-bottom: 1rem; letter-spacing: .04em; text-transform: uppercase; }
.site-footer a { color: #c8d0db; transition: color var(--t-fast); }
.site-footer a:hover { color: var(--c-brand); }
.site-footer ul li { margin-bottom: .5rem; font-size: .92rem; }
.site-footer .brand img { height: 34px; }
.site-footer p { color: var(--c-muted); font-size: .92rem; }
.footer-bottom {
  margin-top: 3rem; padding-top: 1.25rem; border-top: 1px solid rgba(255,255,255,.1);
  display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; font-size: .85rem; color: #98a3b3;
}

/* ---------- Active nav state ---------- */
.site-nav a.is-active { color: var(--c-brand); }
.site-nav a.is-active::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 2px; background: var(--c-brand); border-radius: 2px;
}

/* ---------- Sub-hero (inner pages) ---------- */
.subhero {
  position: relative; isolation: isolate; color: #fff;
  padding: clamp(4rem, 9vw, 7rem) 0 clamp(3rem, 6vw, 5rem);
  text-align: center; overflow: hidden;
}
.subhero::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    linear-gradient(180deg, rgba(10,12,16,.78), rgba(10,12,16,.88)),
    radial-gradient(ellipse at 70% 30%, rgba(200,16,46,.30), transparent 65%),
    url("../img/uploads/4.jpeg") center/cover no-repeat;
}
.subhero .kicker { color: #ffd2da; font-weight: 700; letter-spacing: .14em; font-size: .85rem; text-transform: uppercase; }
.subhero h1 { font-size: clamp(2rem, 4.5vw, 3.2rem); margin: .5rem 0 .75rem; }
.subhero p { color: rgba(255,255,255,.85); max-width: 720px; margin: 0 auto; font-size: 1.05rem; }
.subhero .breadcrumb { margin-top: 1.5rem; font-size: .9rem; color: rgba(255,255,255,.7); }
.subhero .breadcrumb a { color: rgba(255,255,255,.9); }
.subhero .breadcrumb a:hover { color: #fff; }
.subhero .breadcrumb .sep { margin: 0 .5rem; opacity: .5; }

/* ---------- Stats ---------- */
.stats { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); text-align: center; }
.stat { padding: 1.5rem 1rem; border-radius: var(--r-md); background: var(--c-bg-card); border: 1px solid var(--c-line); }
.stat .num { font-size: clamp(2rem, 4vw, 3rem); font-weight: 800; color: var(--c-brand); display: block; line-height: 1; }
.stat .label { color: var(--c-muted); font-size: .9rem; margin-top: .35rem; display: block; }

/* ---------- Service cards (inner) ---------- */
.svc-card {
  background: var(--c-bg-card); border: 1px solid var(--c-line); border-radius: var(--r-lg);
  padding: 2rem; transition: transform var(--t-med), box-shadow var(--t-med), border-color var(--t-med), background var(--t-med);
  position: relative; overflow: hidden;
}
.svc-card::before {
  content: ""; position: absolute; left: 0; top: 0; height: 4px; width: 0;
  background: var(--c-brand); transition: width var(--t-med);
}
.svc-card:hover { transform: translateY(-4px); border-color: var(--c-brand); background: #1a1f26; }
.svc-card:hover::before { width: 100%; }
.svc-card .num {
  display: inline-block; font-size: .8rem; font-weight: 700; color: var(--c-brand);
  background: var(--c-brand-soft); padding: .25rem .6rem; border-radius: 999px; margin-bottom: 1rem;
}
.svc-card h3 { font-size: 1.25rem; }

/* ---------- Project filters & cards (page) ---------- */
.proj-filters {
  display: flex; flex-wrap: wrap; gap: .5rem; justify-content: center; margin-bottom: 2rem;
}
.proj-filters button {
  padding: .55rem 1.2rem; border-radius: 999px; font-weight: 600; font-size: .9rem;
  background: var(--c-bg-alt); color: var(--c-ink-soft); transition: all var(--t-fast);
}
.proj-filters button.is-active,
.proj-filters button:hover { background: var(--c-brand); color: #fff; }

.proj-grid { display: grid; gap: 1.25rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr)); }
.proj-grid .proj-card { padding: 1.5rem; }
.proj-grid .proj-card .country { font-size: .8rem; color: var(--c-muted); display: inline-flex; align-items: center; gap: .35rem; }
.proj-grid .proj-card .country::before { content: "📍"; }

/* ---------- Forms ---------- */
.form-grid { display: grid; gap: 1rem; grid-template-columns: 1fr; }
@media (min-width: 700px) { .form-grid { grid-template-columns: 1fr 1fr; } .form-grid .full { grid-column: 1 / -1; } }
.field { display: flex; flex-direction: column; gap: .35rem; }
.field label { font-weight: 500; font-size: .9rem; color: var(--c-ink); }
.field input, .field textarea, .field select {
  font: inherit; padding: .8rem 1rem; border: 1px solid var(--c-line); border-radius: var(--r-md);
  background: var(--c-bg-card); color: var(--c-ink); transition: border-color var(--t-fast), box-shadow var(--t-fast);
}
.field input::placeholder, .field textarea::placeholder { color: var(--c-muted); }
.field input:focus, .field textarea:focus, .field select:focus {
  outline: 0; border-color: var(--c-brand); box-shadow: 0 0 0 3px var(--c-brand-soft);
}
.field textarea { min-height: 130px; resize: vertical; }
.form-status { padding: 1rem; border-radius: var(--r-md); font-weight: 500; }
.form-status.is-success { background: #e6f7ed; color: #0c6b34; }
.form-status.is-error { background: #fde7eb; color: #9a0c23; }

/* ---------- Contact info card ---------- */
.contact-info {
  background: var(--c-accent); color: #fff; padding: 2.5rem; border-radius: var(--r-lg);
}
.contact-info h3 { color: #fff; }
.contact-info ul li { margin-bottom: 1.25rem; padding-left: 2.5rem; position: relative; }
.contact-info ul li::before {
  content: ""; position: absolute; left: 0; top: 2px; width: 32px; height: 32px;
  background: rgba(255,255,255,.1); border-radius: 50%; display: flex;
}
.contact-info .label { display: block; font-size: .8rem; opacity: .7; text-transform: uppercase; letter-spacing: .08em; }
.contact-info a { color: #fff; }
.contact-info a:hover { color: #ffd2da; }

/* ---------- 404 ---------- */
.error-page { min-height: 70vh; display: grid; place-items: center; text-align: center; padding: 4rem 1rem; }
.error-page h1 { font-size: clamp(4rem, 12vw, 8rem); color: var(--c-brand); margin: 0; line-height: 1; }
.error-page h2 { font-size: 1.75rem; margin-top: .5rem; }

/* ---------- 5-card single-line row (Áreas) ---------- */
.grid-row-5 {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1rem;
}
@media (max-width: 1100px) {
  .grid-row-5 { grid-template-columns: repeat(5, minmax(180px, 1fr)); overflow-x: auto; padding-bottom: .5rem; scroll-snap-type: x mandatory; }
  .grid-row-5 .cat-card { scroll-snap-align: start; }
}
@media (max-width: 600px) {
  .grid-row-5 { grid-template-columns: repeat(5, 70%); }
}
.grid-row-5 .cat-card { padding: 1.25rem 1rem; position: relative; }
.grid-row-5 .cat-card .icon { width: 56px; height: 56px; margin-bottom: .75rem; }
.grid-row-5 .cat-card .icon img,
.grid-row-5 .cat-card .icon svg { width: 28px; height: 28px; }
.grid-row-5 .cat-card h3 { font-size: 1.05rem; margin-bottom: .35rem; }
.grid-row-5 .cat-card p { font-size: .85rem; }

/* Clickable + active states */
.cat-card { position: relative; }
.cat-card.is-clickable { cursor: pointer; }
.cat-card.is-clickable::before {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 3px;
  background: var(--c-brand); transform: scaleX(0); transform-origin: left;
  transition: transform var(--t-med); border-radius: 0 0 var(--r-lg) var(--r-lg);
}
.cat-card.is-clickable:hover { border-color: var(--c-brand); }
.cat-card.is-clickable:hover::before { transform: scaleX(1); }
.cat-card.is-clickable::after {
  content: "▸ Click"; position: absolute; right: .85rem; top: .85rem;
  color: var(--c-brand); font-size: .7rem; font-weight: 700; letter-spacing: .1em;
  opacity: 0; transition: opacity var(--t-fast);
}
.cat-card.is-clickable:hover::after { opacity: .85; }

/* Active card pulse */
.cat-card.is-active {
  border-color: var(--c-brand);
  background: linear-gradient(180deg, rgba(225,20,46,.08), var(--c-bg-card));
  box-shadow: 0 0 0 1px var(--c-brand), 0 0 24px rgba(225,20,46,.25);
}
.cat-card.is-active::before { transform: scaleX(1); }
.cat-card.is-active::after { content: "● Activo"; opacity: 1; color: var(--c-brand); }
.cat-card.is-active .icon { animation: iconPulse 2.4s ease-in-out infinite; }
@keyframes iconPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(225,20,46,.6); }
  50%      { box-shadow: 0 0 0 12px rgba(225,20,46,0); }
}
[lang="en"] .cat-card.is-active::after { content: "● Active"; }

/* ---------- Portal cards (portals.html) ---------- */
.portal-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
}
.portal-card {
  background: var(--c-bg-card);
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: .5rem;
  transition: transform var(--t-med), border-color var(--t-med), box-shadow var(--t-med);
  position: relative;
  overflow: hidden;
}
.portal-card::before {
  content: ""; position: absolute; left: 0; top: 0; height: 3px; width: 0;
  background: var(--c-brand); transition: width var(--t-med);
}
.portal-card:hover {
  transform: translateY(-4px);
  border-color: var(--c-brand);
  box-shadow: var(--shadow-lg);
}
.portal-card:hover::before { width: 100%; }

.portal-card .portal-icon {
  width: 64px; height: 64px;
  flex-shrink: 0;                     /* prevent flexbox from stretching it */
  align-self: flex-start;             /* don't fill the row width */
  display: grid; place-items: center;
  background: var(--c-brand-soft);
  border-radius: 50%;
  margin-bottom: .75rem;
  color: var(--c-brand);
}
.portal-card .portal-icon svg {
  width: 32px; height: 32px;
  display: block;
  flex-shrink: 0;
}
.portal-card h3 { font-size: 1.25rem; margin: 0; }
.portal-card .tagline {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--c-brand);
  margin: 0;
}
.portal-card > p:not(.tagline) {
  flex: 1;
  font-size: .95rem;
  margin: .25rem 0 1rem;
}
.portal-card .portal-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-top: auto;
}
.portal-card .portal-actions .btn {
  flex: 1;
  min-width: 130px;
  padding: .7rem 1rem;
  font-size: .9rem;
  justify-content: center;
}

/* Featured portal — for SYMMETRIC, the flagship product */
.portal-card--featured {
  border-color: var(--c-brand);
  background: linear-gradient(180deg, rgba(225, 20, 46, 0.06), var(--c-bg-card));
  box-shadow: 0 0 0 1px var(--c-brand), 0 0 24px rgba(225, 20, 46, 0.18);
}
.portal-card--featured::before { width: 100%; }
.portal-card--featured .portal-icon {
  background: var(--c-brand);
  color: #fff;
}

/* ---------- Inline viewer (3D / iframe) ---------- */
.viewer {
  margin-top: 2rem; background: var(--c-bg-card);
  border: 1px solid var(--c-line); border-radius: var(--r-lg);
  overflow: hidden;
}
.viewer-head {
  display: flex; align-items: center; gap: 1rem; padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--c-line); flex-wrap: wrap;
}
.viewer-head .titles { flex: 1; min-width: 0; }
.viewer-head h3 { margin: 0; font-size: 1.1rem; color: #fff; }
.viewer-head p { margin: 0; font-size: .85rem; color: var(--c-muted); }
.viewer-head .actions { display: flex; gap: .5rem; }
.icon-btn {
  width: 38px; height: 38px; border-radius: 50%;
  background: var(--c-bg-alt); color: var(--c-ink-soft);
  display: grid; place-items: center; transition: all var(--t-fast);
  border: 1px solid var(--c-line);
}
.icon-btn:hover { background: var(--c-brand); color: #fff; border-color: var(--c-brand); }
.icon-btn svg { width: 18px; height: 18px; }
.viewer-body {
  position: relative; background: #0a0c10;
  height: clamp(420px, 60vh, 720px);
}
.viewer-source { position: absolute; inset: 0; }
.viewer-source[hidden] { display: none; }
.viewer-source > model-viewer,
.viewer-source > iframe { width: 100%; height: 100%; border: 0; display: block; background: #0a0c10; }
/* Mobile/iOS fallback — replaces the entire viewer body with a polite
   "available on desktop" message when device can't handle the heavy demos. */
.viewer-fallback {
  height: 100%;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  text-align: center;
  padding: clamp(2rem, 6vw, 3rem);
  color: var(--c-ink-soft);
}
.viewer-fallback-icon {
  width: 84px; height: 84px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: var(--c-brand-soft);
  color: var(--c-brand);
  margin-bottom: 1.25rem;
}
.viewer-fallback h4 { font-size: 1.15rem; color: #fff; margin: 0 0 .5rem; }
.viewer-fallback p { font-size: .95rem; max-width: 380px; margin: 0; line-height: 1.5; }
.viewer.viewer-disabled .viewer-body { height: clamp(260px, 35vh, 360px); }
.viewer.viewer-disabled .viewer-head { padding-bottom: .5rem; }
.viewer.viewer-disabled .viewer-head .actions { display: none; }

.viewer-loading {
  position: absolute; inset: 0; display: grid; place-items: center;
  color: var(--c-ink-soft); font-size: .95rem; background: #0a0c10; z-index: 2;
  transition: opacity var(--t-med);
}
.viewer-loading.is-hidden { opacity: 0; pointer-events: none; }
.viewer-loading .text { text-align: center; padding: 0 1rem; max-width: 420px; }
.viewer-loading .hint { display: block; margin-top: .5rem; font-size: .8rem; opacity: .65; }
.spinner {
  width: 36px; height: 36px; border: 3px solid var(--c-line); border-top-color: var(--c-brand);
  border-radius: 50%; animation: spin 1s linear infinite; margin: 0 auto .75rem;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Map embed + photo gallery (contact page) ---------- */
.map-wrap {
  position: relative;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--c-line);
  box-shadow: var(--shadow-md);
  aspect-ratio: 16 / 9;
  background: var(--c-bg-card);
}
.map-wrap iframe {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  border: 0;
  filter: invert(0.92) hue-rotate(180deg) saturate(0.7);  /* darken Google Maps to fit theme */
}
.map-actions {
  display: flex; justify-content: center; margin-top: 1.5rem;
}

.gallery {
  margin-top: 2rem;
  display: grid;
  gap: .75rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr));
}
.gallery-item {
  display: block;
  aspect-ratio: 4 / 3;
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--c-line);
  background: var(--c-bg-card);
  transition: transform var(--t-med), border-color var(--t-med);
}
.gallery-item:hover { transform: translateY(-2px); border-color: var(--c-brand); }
.gallery-item img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* ---------- Reveal animation ---------- */
[data-reveal] { opacity: 0; transform: translateY(20px); transition: opacity .6s ease, transform .6s ease; }
[data-reveal].is-in { opacity: 1; transform: none; }