/* ============================================================
   RIoT IO — hybrid brand system
   Navy/gold brand frame · electric cyan reserved for live data
   ============================================================ */

:root {
  /* navy ramp */
  --navy-50:  #F4F5F8;
  --navy-100: #E4E6EE;
  --navy-200: #C0C4D8;
  --navy-300: #8B90B0;
  --navy-400: #6B7094;
  --navy-500: #4A4F72;
  --navy-600: #353958;
  --navy-700: #252840;
  --navy-800: #1A1D2E;
  --navy-900: #13162A;
  --navy-950: #0D0F18;
  /* gold ramp */
  --gold-200: #ECDF9E;
  --gold-300: #E0CC72;
  --gold-400: #D4B84A;
  --gold-500: #C4A32E;
  --gold-600: #A68A26;
  --gold-700: #8A7220;
  /* live data + semantics */
  --cyan: #4FD1FF;
  --green: #22C55E;
  --green-l: #4ADE80;
  --warn: #FFA94F;
  /* roles */
  --bg: var(--navy-950);
  --bg-alt: var(--navy-900);
  --card: var(--navy-800);
  --chipbg: #20243A;
  --border: rgba(255,255,255,.08);
  --border-soft: rgba(255,255,255,.05);
  --text: var(--navy-50);
  --text-2: #B7BCD4;
  --text-3: var(--navy-300);
  --text-4: var(--navy-400);
  --grad-gold: linear-gradient(90deg, var(--gold-300), var(--gold-500) 55%, var(--gold-600));
  /* themable surfaces & accents (overridden in light mode) */
  --wash-1: rgba(255,255,255,.03);
  --wash-2: rgba(255,255,255,.08);
  --border-strong: rgba(255,255,255,.13);
  --nav-bg: rgba(13,15,24,.82);
  --menu-bg: var(--navy-900);
  --cta-pill-bg: var(--navy-50);
  --cta-pill-fg: var(--navy-900);
  --input-bg: rgba(13,15,24,.6);
  --card-solid: rgba(26,29,46,.96);
  --chip-float-bg: rgba(32,36,58,.94);
  --chip-float-fg: var(--navy-100);
  --chip-eu-fg: var(--gold-200);
  --footer-bg: #0B0D15;
  --logo-fg: var(--navy-300);
  --contact-a: var(--navy-700);
  --contact-b: #10131F;
  --track-bg: var(--navy-700);
  --lock-fg: #86E0A8;
  --shadow-1: rgba(0,0,0,.4);
  --shadow-2: rgba(0,0,0,.5);
  --proto-http: var(--navy-200);
  --accent-1: var(--gold-300);
  --accent-2: var(--navy-300);
  --accent-3: var(--navy-400);
  --accent-4: var(--gold-600);
  --map-dot-0: #353958;
  --map-dot-1: #4A4F72;
  --map-dot-2: #6B7094;
  --map-dot-3: #2C3048;
  --map-arc-live: var(--cyan);
  --map-arc-eu: var(--gold-300);
  --check-fg: var(--navy-200);
  --ind-fg: var(--navy-100);
  --label-fg: var(--navy-100);
  --font-display: "Space Grotesk", sans-serif;
  --font-body: "Inter", sans-serif;
  --container: 1296px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

h1, h2, h3 { font-family: var(--font-display); font-weight: 700; letter-spacing: -.02em; }
h1 { font-size: clamp(2.4rem, 5vw, 3.75rem); line-height: 1.1; }
h2 { font-size: clamp(1.8rem, 3.4vw, 2.75rem); line-height: 1.15; }
h3 { font-size: 1.25rem; }

.grad-text {
  background: var(--grad-gold);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* lucide icon default sizing */
svg.lucide { width: 18px; height: 18px; stroke-width: 2; }

/* ---------- reveal-on-scroll (gated behind html.js so no-JS users see everything) ---------- */
html.js .reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
html.js .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ============ NAV ============ */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: var(--nav-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.brand { display: flex; align-items: center; gap: 12px; }
.logo-mark {
  width: 34px; height: 34px; border-radius: 10px;
  display: grid; place-items: center;
  background: var(--navy-800);
  border: 1px solid var(--gold-500);
}
.logo-mark svg { width: 17px; height: 17px; color: var(--gold-500); }
.logo-mark-sm { width: 27px; height: 27px; border-radius: 8px; }
.logo-mark-sm svg { width: 13px; height: 13px; }
.brand-text { font-family: var(--font-display); font-weight: 700; font-size: 1.05rem; letter-spacing: .2em; }
.brand-text-sm { font-size: .9rem; }
.nav-links { display: flex; align-items: center; gap: 34px; }
.nav-links a { font-size: .9rem; font-weight: 500; color: var(--text-2); transition: color .2s; }
.nav-links a:hover { color: var(--text); }
.nav-links a.nav-cta {
  background: var(--cta-pill-bg); color: var(--cta-pill-fg);
  font-weight: 600; padding: 10px 22px; border-radius: 999px;
  transition: transform .2s, box-shadow .2s;
}
.nav-links a.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 6px 24px var(--shadow-1); color: var(--cta-pill-fg); }
.nav-burger { display: none; background: none; border: 0; color: var(--text); cursor: pointer; padding: 8px; }
.nav-burger svg { width: 24px; height: 24px; }

/* ============ BUTTONS / CHIPS ============ */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 15px 28px; border-radius: 999px;
  font-weight: 600; font-size: .95rem; border: 0; cursor: pointer;
  font-family: var(--font-body);
  transition: transform .2s, box-shadow .2s, background .2s;
}
.btn svg { width: 16px; height: 16px; }
.btn-gold { background: var(--grad-gold); color: var(--navy-900); }
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 10px 32px rgba(196,163,46,.32); }
.btn-ghost { background: var(--wash-1); color: var(--text); border: 1px solid var(--border-strong); }
.btn-ghost:hover { background: var(--wash-2); }
.btn-full { width: 100%; justify-content: center; }

.chip {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 9px 16px; border-radius: 999px;
  background: var(--wash-1); border: 1px solid var(--border-strong);
  font-size: .72rem; font-weight: 600; letter-spacing: .14em; color: var(--text-2);
}
.chip-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--cyan); }
.dot { width: 6px; height: 6px; border-radius: 50%; display: inline-block; }
.dot-green { background: var(--green); animation: pulse 2s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: .35; } }

.eyebrow {
  font-size: .8rem; font-weight: 700; letter-spacing: .2em;
  background: var(--grad-gold);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  margin-bottom: 14px;
}

/* ============ HERO ============ */
.hero { position: relative; padding: 90px 0 84px; overflow: hidden; }
.hero-glow { position: absolute; border-radius: 50%; pointer-events: none; filter: blur(10px); }
.hero-glow-gold { width: 900px; height: 700px; right: -180px; top: -260px;
  background: radial-gradient(closest-side, rgba(196,163,46,.13), transparent); }
.hero-glow-navy { width: 700px; height: 600px; left: -260px; top: 60px;
  background: radial-gradient(closest-side, rgba(74,79,114,.22), transparent); }
.hero-glow-cyan { width: 600px; height: 480px; right: -60px; bottom: -160px;
  background: radial-gradient(closest-side, rgba(79,209,255,.07), transparent); }
.hero-inner { position: relative; display: grid; grid-template-columns: 1fr 560px; gap: 64px; align-items: center; }
.hero-copy h1 { margin: 26px 0 22px; }
.hero-sub { color: var(--text-2); font-size: 1.06rem; max-width: 560px; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 16px; margin: 30px 0 26px; }
.hero-proof { font-size: .82rem; color: var(--text-4); max-width: 560px; }

/* hero map */
.hero-map { position: relative; width: 560px; height: 568px; max-width: 100%; }
.hero-map svg { width: 100%; height: 100%; }
.map-chip {
  position: absolute; display: flex; align-items: center; gap: 8px;
  padding: 8px 14px; border-radius: 999px;
  background: var(--chip-float-bg); border: 1px solid var(--border);
  font-size: .75rem; font-weight: 600; color: var(--chip-float-fg);
  box-shadow: 0 10px 28px var(--shadow-1);
  white-space: nowrap;
}
.map-chip svg { width: 14px; height: 14px; }
.map-chip-a { left: 3%; top: 53%; }
.map-chip-b { right: 2%; top: 7%; border-color: rgba(196,163,46,.35); color: var(--chip-eu-fg); }
.map-chip-b svg { color: var(--chip-eu-fg); }
.map-chip-c { right: 4%; bottom: 6%; }
.map-chip-c svg { color: var(--cyan); }

/* map svg internals */
.jhb-pulse { animation: jhbPulse 2.6s ease-out infinite; transform-origin: center; transform-box: fill-box; }
@keyframes jhbPulse { 0% { transform: scale(.6); opacity: .9; } 100% { transform: scale(2.4); opacity: 0; } }
.arc-live { stroke-dasharray: 6 1200; animation: arcFlow 4.5s linear infinite; }
@keyframes arcFlow { from { stroke-dashoffset: 0; } to { stroke-dashoffset: -1206; } }
.map-dot-tw { animation: twinkle 3.2s ease-in-out infinite; }
@keyframes twinkle { 50% { opacity: .25; } }
@media (prefers-reduced-motion: reduce) {
  .jhb-pulse, .arc-live, .map-dot-tw, .dot-green { animation: none; }
}

/* ============ SECTIONS ============ */
.section { padding: 104px 0; }
.section-alt { background: var(--bg-alt); border-top: 1px solid var(--border-soft); border-bottom: 1px solid var(--border-soft); }
.section-head { max-width: 760px; margin-bottom: 52px; }
.section-head h2 { margin-bottom: 14px; }
.section-sub { color: var(--text-2); }

/* ============ STATS ============ */
.stats { background: var(--bg-alt); border-top: 1px solid var(--border-soft); border-bottom: 1px solid var(--border-soft); }
.stats-inner { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; padding-top: 44px; padding-bottom: 44px; }
.stat { display: flex; flex-direction: column; gap: 4px; }
.stat-v { font-family: var(--font-display); font-weight: 700; font-size: 2.1rem; letter-spacing: -.02em; }
.stat-l { font-size: .82rem; color: var(--text-4); }

/* ============ LOGOS ============ */
.logos { padding: 58px 0; }
.logos-inner { display: flex; flex-direction: column; align-items: center; gap: 28px; }
.logos-label { font-size: .72rem; font-weight: 600; letter-spacing: .22em; color: var(--text-4); text-align: center; }
.logos-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 28px 56px; }
.logo-word { font-weight: 700; font-size: 1.05rem; letter-spacing: .08em; color: var(--logo-fg); }
.logo-word-sg { font-family: var(--font-display); letter-spacing: .22em; }

/* ============ CARDS ============ */
.card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 20px; padding: 28px;
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.card:hover { transform: translateY(-4px); border-color: rgba(196,163,46,.28); box-shadow: 0 18px 48px var(--shadow-1); }
.icon-box {
  width: 44px; height: 44px; border-radius: 12px;
  display: grid; place-items: center; flex: none;
}
.icon-box svg { width: 20px; height: 20px; }
.icon-gold { background: rgba(196,163,46,.12); color: var(--gold-500); }
.icon-gold-light { background: rgba(212,184,74,.12); color: var(--gold-400); }
.icon-silver { background: rgba(139,144,176,.12); color: var(--navy-300); }
.icon-green { background: rgba(34,197,94,.12); color: var(--green); }
.ic-gold { color: var(--gold-500); }
.ic-gold-light { color: var(--gold-400); }
.ic-silver { color: var(--navy-300); }
.ic-green { color: var(--green); }

/* ============ SOLUTIONS ============ */
.sol-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.sol-card { padding: 32px; }
.sol-head { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.sol-head .icon-box { width: 48px; height: 48px; border-radius: 14px; }
.sol-head h3 { font-size: 1.3rem; }
.sol-card > p { color: var(--text-3); font-size: .94rem; margin-bottom: 18px; }
.chip-row { display: flex; flex-wrap: wrap; gap: 8px; }
.mini-chip {
  padding: 6px 12px; border-radius: 999px; font-size: .74rem;
  background: var(--wash-1); border: 1px solid var(--border);
  color: var(--text-2);
}
.industries { margin-top: 56px; display: flex; flex-direction: column; align-items: center; gap: 22px; }
.ind-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.ind-chip {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 18px; border-radius: 999px; font-size: .82rem; font-weight: 600;
  background: var(--wash-1); border: 1px solid var(--border);
  color: var(--ind-fg);
}
.ind-chip svg { width: 16px; height: 16px; }
.ind-chip-accent { background: rgba(196,163,46,.07); border-color: rgba(196,163,46,.35); color: var(--chip-eu-fg); }
.ind-chip-accent svg { color: var(--chip-eu-fg); }

/* ============ PROCESS ============ */
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.step-card { display: flex; flex-direction: column; gap: 12px; }
.step-num { font-family: var(--font-display); font-weight: 700; font-size: .85rem; letter-spacing: .1em; }
.step-card p { color: var(--text-3); font-size: .9rem; }

/* ============ CAPABILITIES ============ */
.caps-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 64px; margin-bottom: 52px; }
.caps-head-note { max-width: 400px; color: var(--text-2); font-size: .94rem; }
.caps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.cap-card { display: flex; flex-direction: column; gap: 14px; }
.cap-card h3 { font-size: 1.15rem; }
.cap-card p { color: var(--text-3); font-size: .9rem; }

/* ============ PLATFORM ============ */
.platform-inner { display: grid; grid-template-columns: 1fr 560px; gap: 72px; align-items: center; }
.platform-copy h2 { margin-bottom: 18px; }
.plat-group { margin-top: 26px; }
.plat-group h4 { font-family: var(--font-display); font-size: 1.05rem; margin-bottom: 12px; }
.check-list { list-style: none; display: flex; flex-direction: column; gap: 11px; }
.check-list li { display: flex; align-items: center; gap: 10px; color: var(--check-fg); font-size: .94rem; }
.check-list svg { width: 17px; height: 17px; color: var(--green); flex: none; }

.flow-card {
  background: var(--card-solid); border: 1px solid var(--border);
  border-radius: 24px; padding: 30px;
  box-shadow: 0 24px 60px var(--shadow-2);
  display: flex; flex-direction: column; align-items: center;
}
.flow-devices { display: flex; gap: 18px; }
.flow-dev {
  width: 38px; height: 38px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--chipbg); border: 1px solid var(--border-strong);
}
.flow-dev svg { width: 17px; height: 17px; }
.flow-line { width: 1px; height: 26px; background: var(--border-strong); }
.flow-core {
  border-radius: 18px; padding: 16px 26px; text-align: center;
  background: var(--chipbg);
  border: 1px solid rgba(196,163,46,.4);
  box-shadow: 0 0 36px rgba(196,163,46,.14);
}
.flow-core-title { display: flex; align-items: center; justify-content: center; gap: 9px; font-family: var(--font-display); font-weight: 700; font-size: 1.05rem; }
.flow-core-sub { font-size: .72rem; color: var(--text-2); margin-top: 5px; }
.flow-protocols { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.proto {
  padding: 6px 16px; border-radius: 999px;
  background: var(--chipbg); border: 1px solid var(--border);
  font-family: var(--font-display); font-weight: 700; font-size: .76rem; letter-spacing: .1em;
}
.flow-dests { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; }
.flow-dest {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 16px; border-radius: 16px;
  background: var(--chipbg); border: 1px solid var(--border);
  min-width: 210px;
}
.flow-dest .icon-box { width: 36px; height: 36px; border-radius: 10px; }
.flow-dest strong { display: block; font-size: .84rem; }
.flow-dest small { color: var(--text-4); font-size: .7rem; }
.flow-lock {
  margin-top: 24px; display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 16px; border-radius: 999px; font-size: .76rem; font-weight: 600;
  background: rgba(34,197,94,.05); border: 1px solid rgba(34,197,94,.18);
  color: var(--lock-fg);
}
.flow-lock svg { width: 14px; height: 14px; color: var(--green-l); }

/* ============ FEATURED WORK ============ */
.work-inner { display: grid; grid-template-columns: 560px 1fr; gap: 72px; align-items: center; }
.work-copy h2 { margin-bottom: 18px; }
.work-copy .check-list { margin-top: 22px; }
.gen-card { padding: 26px; box-shadow: 0 24px 60px var(--shadow-2); }
.gen-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 22px; gap: 12px; }
.gen-head strong { display: block; font-size: .94rem; }
.gen-head small { color: var(--text-4); font-size: .76rem; }
.badge-live {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 12px; border-radius: 999px;
  background: rgba(34,197,94,.08); border: 1px solid rgba(34,197,94,.2);
  font-size: .68rem; font-weight: 700; letter-spacing: .08em; color: var(--green-l);
  white-space: nowrap;
}
.gen-rows { display: flex; flex-direction: column; gap: 16px; }
.gen-row { display: flex; align-items: center; gap: 14px; }
.gen-name { width: 112px; flex: none; font-size: .82rem; color: var(--check-fg); }
.gen-track { flex: 1; height: 8px; border-radius: 4px; background: var(--track-bg); overflow: hidden; }
.gen-bar {
  display: block; height: 100%; border-radius: 4px;
  background: linear-gradient(90deg, #2E9BD6, var(--cyan));
  transform-origin: left; animation: barGrow 1.2s ease both;
}
.gen-bar-warn { background: linear-gradient(90deg, #E8833A, var(--warn)); }
@keyframes barGrow { from { transform: scaleX(0); } }
.gen-val { width: 64px; flex: none; text-align: right; font-family: var(--font-display); font-weight: 700; font-size: .82rem; }
.gen-val-warn { color: var(--warn); }
.gen-foot { margin-top: 22px; padding-top: 16px; border-top: 1px solid var(--border-soft); font-size: .76rem; color: var(--text-4); }

/* ============ CONTACT ============ */
.contact-card {
  position: relative; overflow: hidden;
  border-radius: 28px; padding: 72px 64px;
  background: radial-gradient(120% 130% at 50% 0%, var(--contact-a), var(--contact-b));
  border: 1px solid rgba(196,163,46,.24);
}
.contact-glow { position: absolute; border-radius: 50%; pointer-events: none; }
.contact-glow-l { width: 640px; height: 520px; left: -200px; top: -240px;
  background: radial-gradient(closest-side, rgba(224,204,114,.08), transparent); }
.contact-glow-r { width: 640px; height: 520px; right: -200px; top: -200px;
  background: radial-gradient(closest-side, rgba(79,209,255,.06), transparent); }
.contact-grid { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.contact-copy h2 { margin-bottom: 16px; }
.contact-details { margin-top: 28px; display: flex; flex-direction: column; gap: 14px; }
.contact-line { display: flex; align-items: center; gap: 12px; color: var(--text-2); font-size: .94rem; }
.contact-line svg { width: 17px; height: 17px; color: var(--gold-400); flex: none; }
a.contact-line:hover { color: var(--text); }

.contact-form { display: flex; flex-direction: column; gap: 18px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-field { display: flex; flex-direction: column; gap: 7px; }
.form-field label { font-size: .8rem; font-weight: 600; color: var(--label-fg); }
.form-field .optional { color: var(--text-4); font-weight: 400; }
.form-field input, .form-field textarea {
  background: var(--input-bg); color: var(--text);
  border: 1px solid var(--border-strong); border-radius: 12px;
  padding: 13px 16px; font-family: var(--font-body); font-size: .94rem;
  transition: border-color .2s, box-shadow .2s;
  width: 100%;
}
.form-field textarea { resize: vertical; min-height: 120px; }
.form-field input::placeholder, .form-field textarea::placeholder { color: var(--navy-500); }
.form-field input:focus, .form-field textarea:focus {
  outline: none; border-color: var(--gold-500);
  box-shadow: 0 0 0 3px rgba(196,163,46,.15);
}
.captcha-field label { display: flex; align-items: center; gap: 8px; }
.captcha-field label svg { width: 15px; height: 15px; color: var(--gold-400); }
.captcha-field input { max-width: 180px; }
/* honeypot: visually removed, still in DOM for bots */
.hp-field { position: absolute; left: -9999px; top: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-status { font-size: .85rem; min-height: 1.2em; }
.form-status.ok { color: var(--green-l); }
.form-status.err { color: var(--warn); }

/* ============ FOOTER ============ */
.footer { background: var(--footer-bg); border-top: 1px solid var(--border-soft); padding: 30px 0; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.footer-links { display: flex; gap: 26px; flex-wrap: wrap; }
.footer-links a { font-size: .82rem; color: var(--text-4); transition: color .2s; }
.footer-links a:hover { color: var(--text-2); }
.footer-copy { font-size: .75rem; color: var(--navy-500); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1100px) {
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .hero-map { margin: 0 auto; }
  .platform-inner, .work-inner { grid-template-columns: 1fr; gap: 48px; }
  .work-visual { order: 2; }
  .caps-grid { grid-template-columns: 1fr 1fr; }
  .process-grid { grid-template-columns: 1fr 1fr; }
  .caps-head { flex-direction: column; align-items: flex-start; gap: 18px; }
}

@media (max-width: 820px) {
  .section { padding: 72px 0; }
  .nav-links {
    position: fixed; inset: 76px 0 auto 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--menu-bg); border-bottom: 1px solid var(--border);
    padding: 12px 24px 22px;
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 13px 4px; font-size: 1rem; border-bottom: 1px solid var(--border-soft); }
  .nav-links a.nav-cta { margin-top: 14px; text-align: center; border-bottom: 0; }
  .nav-burger { display: block; }
  .sol-grid { grid-template-columns: 1fr; }
  .stats-inner { grid-template-columns: 1fr 1fr; gap: 26px; }
  .contact-grid { grid-template-columns: 1fr; gap: 44px; }
  .contact-card { padding: 48px 28px; }
  .hero { padding: 56px 0 64px; }
  .hero-map { width: 100%; height: auto; aspect-ratio: 560 / 568; }
  .map-chip { font-size: .68rem; padding: 7px 11px; }
}

@media (max-width: 560px) {
  .caps-grid, .process-grid, .form-row { grid-template-columns: 1fr; }
  .stats-inner { grid-template-columns: 1fr 1fr; }
  .stat-v { font-size: 1.7rem; }
  .hero-ctas .btn { width: 100%; justify-content: center; }
  .gen-name { width: 90px; font-size: .76rem; }
  .gen-val { width: 56px; font-size: .76rem; }
  .flow-dest { min-width: 0; width: 100%; }
  .flow-dests { width: 100%; flex-direction: column; }
}

/* ============ LIGHT THEME (opt-in; dark is default) ============ */
html[data-theme="light"] {
  --bg: #FBFBFD;
  --bg-alt: #F1F3F8;
  --card: #FFFFFF;
  --chipbg: #EDEFF5;
  --border: rgba(19,22,42,.10);
  --border-soft: rgba(19,22,42,.06);
  --border-strong: rgba(19,22,42,.16);
  --wash-1: rgba(19,22,42,.04);
  --wash-2: rgba(19,22,42,.08);
  --text: #13162A;
  --text-2: #3E4364;
  --text-3: #4A4F72;
  --text-4: #6B7094;
  /* gold-700 passes WCAG AA on light backgrounds */
  --grad-gold: linear-gradient(90deg, #A68A26, #8A7220 55%, #7A6518);
  --cyan: #0B87C0;
  --green-l: #15803D;
  --warn: #C2410C;
  --nav-bg: rgba(251,251,253,.86);
  --menu-bg: #FFFFFF;
  --cta-pill-bg: #13162A;
  --cta-pill-fg: #F4F5F8;
  --input-bg: #FFFFFF;
  --card-solid: rgba(255,255,255,.97);
  --chip-float-bg: rgba(255,255,255,.95);
  --chip-float-fg: #13162A;
  --chip-eu-fg: #8A7220;
  --footer-bg: #EDEFF5;
  --logo-fg: #6B7094;
  --contact-a: #FFFFFF;
  --contact-b: #E9ECF5;
  --track-bg: #E4E6EE;
  --lock-fg: #15803D;
  --shadow-1: rgba(19,22,42,.10);
  --shadow-2: rgba(19,22,42,.15);
  --proto-http: #4A4F72;
  --accent-1: #A68A26;
  --accent-2: #6B7094;
  --accent-3: #4A4F72;
  --accent-4: #8A7220;
  --map-dot-0: #C7CBDD;
  --map-dot-1: #9CA2C0;
  --map-dot-2: #6B7094;
  --map-dot-3: #DCDFEA;
  --map-arc-live: #0B87C0;
  --map-arc-eu: #A68A26;
  --check-fg: #3E4364;
  --ind-fg: #3E4364;
  --label-fg: #13162A;
}

/* theme toggle button */
.theme-toggle {
  width: 38px; height: 38px; border-radius: 999px;
  display: grid; place-items: center;
  background: var(--wash-1); border: 1px solid var(--border-strong);
  color: var(--text-2); cursor: pointer;
  transition: background .2s, color .2s;
}
.theme-toggle:hover { background: var(--wash-2); color: var(--text); }
.theme-toggle svg { width: 17px; height: 17px; }
.nav-right { display: flex; align-items: center; gap: 26px; }