/* REAL3D — site design system (dark luxe / chrome + electric blue). */

:root {
  --bg: #050708;
  --bg2: #080b0e;
  --panel: #0c1014;
  --panel2: #10151b;
  --line: #1c242e;
  --line2: #26313e;
  --txt: #e7edf5;
  --dim: #8b98a9;
  --dim2: #5d6a7a;
  --brand: #1e9bff;
  --brand2: #6fc0ff;
  --brand-ink: #04121f;
  --chrome: linear-gradient(175deg, #f8fafc 0%, #c3ccd6 16%, #eef2f6 30%, #97a2b0 48%,
                            #f4f8fb 64%, #a9b4c0 80%, #e8eef4 100%);
  --silver-text: linear-gradient(180deg, #f4f7fa 0%, #c6cfd9 55%, #8f9aa8 100%);
  --ok: #7ec98f;
  --err: #ff9c9c;
  --font-display: "Sora", "Segoe UI", system-ui, sans-serif;
  --font-body: "Inter", "Segoe UI", system-ui, sans-serif;
  --radius: 14px;
  --shadow: 0 24px 70px rgba(0, 0, 0, .5);
  --nav-bg: rgba(5, 7, 8, .72);
  --chip-bg: rgba(12, 16, 20, .5);
  --ghost-bg: rgba(12, 16, 20, .6);
  --brand-glow: rgba(30, 155, 255, .4);
  --art-ink: #e8eef4;
  --art-ink2: #97a2b0;
  --art-num: rgba(231, 237, 245, .55);
  --art-bg1: #10161d;
  --art-bg2: #0a0e12;
  --art-bg3: #070a0d;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  background: var(--bg);
  color: var(--txt);
  font: 16px/1.65 var(--font-body);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body::before { /* page-wide vignette + blue aura, sits under everything */
  content: "";
  position: fixed; inset: 0; z-index: -2; pointer-events: none;
  background:
    radial-gradient(900px 520px at 50% -8%, rgba(30, 155, 255, .16), transparent 65%),
    radial-gradient(1200px 800px at 85% 115%, rgba(30, 155, 255, .07), transparent 60%),
    radial-gradient(1000px 700px at 8% 100%, rgba(120, 160, 200, .05), transparent 55%);
}
#stars { position: fixed; inset: 0; z-index: -1; pointer-events: none; }

::selection { background: rgba(30, 155, 255, .35); }
img { max-width: 100%; display: block; }
a { color: var(--brand2); text-decoration: none; }
h1, h2, h3 { font-family: var(--font-display); font-weight: 700; line-height: 1.14; letter-spacing: -.01em; }

.wrap { width: min(1180px, 92vw); margin: 0 auto; }
section { position: relative; padding: clamp(64px, 9vw, 120px) 0; }

.kicker {
  display: inline-flex; align-items: center; gap: 10px;
  font: 600 11px/1 var(--font-display); letter-spacing: .34em; text-transform: uppercase;
  color: var(--brand2); margin-bottom: 18px;
}
.kicker::before { content: ""; width: 26px; height: 1px; background: linear-gradient(90deg, transparent, var(--brand)); }
.h2 { font-size: clamp(28px, 4vw, 44px); }
.h2 em { font-style: normal; color: transparent; background: var(--silver-text); -webkit-background-clip: text; background-clip: text; }
.lead { color: var(--dim); max-width: 640px; margin-top: 14px; font-size: 17px; }

/* ---------- nav ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  background: var(--nav-bg);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, background .3s;
}
.nav.scrolled { border-bottom-color: var(--line); }
.nav-in { display: flex; align-items: center; justify-content: space-between; height: 66px; }
.logo { font: 700 19px/1 var(--font-display); letter-spacing: -.01em; color: var(--txt); display: inline-flex; align-items: baseline; }
.logo-mark { height: 34px; width: auto; align-self: center; margin-right: 10px;
             filter: drop-shadow(0 2px 12px rgba(30, 155, 255, .28)); }
.logo .r3 { background: var(--silver-text); -webkit-background-clip: text; background-clip: text; color: transparent; }
.logo .b3 { color: var(--brand); }
.logo .app { color: var(--dim2); font-weight: 600; font-size: 14px; margin-left: 1px; }
.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links a { color: var(--dim); font-size: 14px; font-weight: 500; transition: color .2s; position: relative; }
.nav-links a:hover { color: var(--txt); }
.nav-links a.active { color: var(--txt); }
.nav-links a.active::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -6px; height: 2px;
  border-radius: 2px; background: linear-gradient(90deg, var(--brand), transparent);
}
.nav-links a.ghost-btn {
  color: var(--brand-ink); background: linear-gradient(180deg, var(--brand2), var(--brand));
  padding: 9px 18px; border-radius: 8px; font-weight: 700;
  box-shadow: 0 6px 24px var(--brand-glow);
}
.nav-links a.ghost-btn:hover { filter: brightness(1.08); color: var(--brand-ink); }
.nav-links a.active.ghost-btn::after { display: none; }
@media (max-width: 860px) { .nav-links a:not(.ghost-btn) { display: none; } }

/* theme toggle */
.theme-btn {
  width: 38px; height: 38px; border-radius: 10px; cursor: pointer;
  border: 1px solid var(--line2); background: var(--panel); color: var(--txt);
  display: grid; place-items: center; transition: border-color .2s, color .2s, background .35s;
}
.theme-btn:hover { border-color: var(--brand); color: var(--brand2); }
[data-theme="light"] .theme-btn .ic-moon { display: none; }
[data-theme="light"] .theme-btn .ic-sun { display: block; }
.theme-btn .ic-sun { display: none; }

/* ---------- hero ---------- */
.hero { padding: clamp(96px, 12vh, 140px) 0 40px; text-align: center; }

.hero-mark { display: flex; justify-content: center; align-items: stretch; gap: clamp(8px, 1.6vw, 20px); position: relative; }
.hero-3 {
  font: 800 clamp(110px, 16.5vw, 195px)/0.82 var(--font-display);
  background: var(--chrome); -webkit-background-clip: text; background-clip: text; color: transparent;
  filter: drop-shadow(0 10px 34px rgba(110, 150, 195, .28));
  transform: translateY(2px);
  user-select: none;
}
.hero-d {
  position: relative;
  width: clamp(96px, 14.5vw, 172px);
  border-radius: clamp(14px, 2vw, 24px) 999px 999px clamp(14px, 2vw, 24px);
  padding: 3px;
  background: var(--chrome);
  box-shadow:
    0 0 70px rgba(30, 155, 255, .38),
    0 0 160px rgba(30, 155, 255, .18),
    0 24px 60px rgba(0, 0, 0, .55);
}
.window-in {
  position: relative; width: 100%; height: 100%;
  border-radius: inherit;
  overflow: hidden;
  background: radial-gradient(120% 90% at 70% 10%, #14202c 0%, #07090c 62%);
  isolation: isolate;
}
.window-in canvas { position: absolute; inset: 0; display: block; touch-action: pan-y; cursor: grab; }
.window-in canvas:active { cursor: grabbing; }
.window-in::after { /* glass sheen over the 3D room */
  content: ""; position: absolute; inset: 0; pointer-events: none; border-radius: inherit;
  background:
    linear-gradient(115deg, rgba(255, 255, 255, .16) 0%, transparent 26%),
    linear-gradient(300deg, rgba(30, 155, 255, .1) 0%, transparent 30%);
  mix-blend-mode: screen;
}
.hero-d .drag-hint, .concept-window .drag-hint {
  position: absolute; left: 50%; bottom: 10px; transform: translateX(-50%); z-index: 2;
  font: 600 9.5px/1 var(--font-display); letter-spacing: .28em; text-transform: uppercase;
  color: rgba(231, 237, 245, .78);
  background: rgba(4, 8, 12, .5); border: 1px solid rgba(231, 237, 245, .16);
  padding: 6px 12px; border-radius: 999px; pointer-events: none;
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
}
.no3d .window-in::before {
  content: "3D"; position: absolute; inset: 0; display: grid; place-items: center;
  font: 800 30vw/1 var(--font-display); color: rgba(30, 155, 255, .16); z-index: 1;
}

.roofline { /* chrome house outline crowning the D */
  position: absolute; top: -clamp(18px, 2.8vw, 34px); left: 18%;
  width: clamp(38px, 4.8vw, 58px); height: auto; z-index: 2;
  filter: drop-shadow(0 4px 14px rgba(120, 160, 200, .35));
  animation: bob 7s ease-in-out infinite;
}
@keyframes bob { 50% { transform: translateY(-7px); } }
@media (prefers-reduced-motion: reduce) { .roofline { animation: none; } }

.wordmark { margin-top: clamp(18px, 2.6vw, 30px); font: 700 clamp(24px, 3.8vw, 38px)/1 var(--font-display); }
.wordmark .r3 { background: var(--silver-text); -webkit-background-clip: text; background-clip: text; color: transparent; }
.wordmark .b3 { color: var(--brand); }
.wordmark .app { color: var(--txt); font-weight: 600; opacity: .92; }

.tagline {
  margin-top: 14px; font: 600 clamp(10px, 1.25vw, 12.5px)/1 var(--font-display);
  letter-spacing: .46em; text-transform: uppercase; color: var(--dim);
  text-indent: .46em;
}
.tagline b { color: var(--brand2); font-weight: 600; }

.hero h1 {
  margin-top: clamp(20px, 3vw, 32px);
  font-size: clamp(30px, 4.6vw, 54px); font-weight: 800; letter-spacing: -.015em;
  background: var(--chrome); -webkit-background-clip: text; background-clip: text; color: transparent;
  filter: drop-shadow(0 6px 26px rgba(110, 150, 195, .22));
}
.hero .sub { color: var(--dim); max-width: 660px; margin: 18px auto 0; font-size: clamp(15px, 1.6vw, 17.5px); }
.hero .sub strong { color: var(--txt); font-weight: 600; }

.cta-row { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; margin-top: clamp(26px, 3.6vw, 38px); }
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font: 700 15px/1 var(--font-display); padding: 16px 28px; border-radius: 12px;
  border: 1px solid transparent; cursor: pointer; transition: transform .18s, box-shadow .18s, filter .18s;
}
.btn-primary {
  color: var(--brand-ink);
  background: linear-gradient(180deg, var(--brand2), var(--brand));
  box-shadow: 0 10px 34px var(--brand-glow), inset 0 1px 0 rgba(255, 255, 255, .35);
}
.btn-primary:hover { transform: translateY(-2px); filter: brightness(1.07); }
.btn-ghost { color: var(--txt); border-color: var(--line2); background: var(--ghost-bg); }
.btn-ghost:hover { border-color: var(--brand); color: var(--brand2); transform: translateY(-2px); }
.btn .hint { font: 500 11.5px/1 var(--font-body); opacity: .75; }

.chips { display: flex; justify-content: center; align-items: center; gap: 10px; flex-wrap: wrap; margin-top: clamp(30px, 4.4vw, 46px); }
.chip {
  display: inline-flex; align-items: center; gap: 8px;
  font: 600 11px/1 var(--font-display); letter-spacing: .22em; text-transform: uppercase;
  color: var(--dim); border: 1px solid var(--line); border-radius: 999px;
  padding: 10px 16px; background: var(--chip-bg);
}
.chip::before { content: ""; width: 5px; height: 5px; border-radius: 50%;
  background: var(--brand); box-shadow: 0 0 10px var(--brand); }
.chip.more { color: var(--brand2); border-color: rgba(30, 155, 255, .4); }

/* ---------- concept dioramas ---------- */
.concept-grid { grid-template-columns: repeat(2, 1fr); gap: clamp(18px, 3vw, 34px); margin-top: 44px; }
@media (max-width: 820px) { .concept-grid { grid-template-columns: 1fr; } }
.concept-window {
  position: relative;
  height: clamp(300px, 34vw, 420px);
  border-radius: 20px;
  padding: 3px;
  background: var(--chrome);
  box-shadow:
    0 0 44px rgba(30, 155, 255, .16),
    0 24px 60px rgba(0, 0, 0, .5);
  transition: box-shadow .3s;
}
.concept-window:hover {
  box-shadow:
    0 0 64px rgba(30, 155, 255, .3),
    0 28px 70px rgba(0, 0, 0, .55);
}
.concept-cap { padding: 18px 4px 0; }
.concept-cap h3 { font-size: 19px; }
.concept-cap p { color: var(--dim); font-size: 14px; margin-top: 6px; max-width: 46ch; }
.kitchen-feature { grid-column: 1 / -1; }
.kitchen-feature .concept-window { height: clamp(340px, 42vw, 500px); }
.kitchen-feature .flag {
  display: inline-block; vertical-align: 3px; margin-left: 10px;
  font: 700 9.5px/1 var(--font-display); letter-spacing: .24em; text-transform: uppercase;
  color: var(--brand-ink); background: linear-gradient(180deg, var(--brand2), var(--brand));
  padding: 6px 11px; border-radius: 999px;
}
@media (min-width: 821px) {
  .kitchen-feature .concept-cap { display: flex; align-items: flex-end; gap: 44px; padding-bottom: 6px; }
  .kitchen-feature .cap-text { flex: 1; }
  .kitchen-feature .linklike { white-space: nowrap; margin-top: 0; }
}
.linklike {
  margin-top: 12px; background: none; border: 0; padding: 0; cursor: pointer;
  font: 600 13.5px/1 var(--font-display); color: var(--brand2);
  display: inline-flex; gap: 8px; align-items: center;
}
.linklike span { transition: transform .2s; }
.linklike:hover { color: #9fd2ff; }
.linklike:hover span { transform: translateX(4px); }

.api-note { margin-top: clamp(40px, 6vw, 64px); }
.api-note-in {
  border: 1px solid rgba(30, 155, 255, .28);
  border-radius: 18px;
  background:
    radial-gradient(600px 200px at 12% 0%, rgba(30, 155, 255, .1), transparent 60%),
    var(--panel);
  padding: clamp(24px, 3.4vw, 40px);
  display: flex; flex-direction: column; gap: 14px; align-items: flex-start;
}
.api-note-in > b { font: 700 18px/1.3 var(--font-display); }
.api-note-in p { color: var(--dim); max-width: 72ch; font-size: 15px; }
.api-note-in em { color: var(--txt); font-style: normal; font-weight: 600; }
.api-note-in .btn { margin-top: 6px; }

/* ---------- spaces ---------- */
.grid { display: grid; gap: 16px; margin-top: 44px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 1020px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .grid-4, .grid-2 { grid-template-columns: 1fr; } }

.space-card {
  position: relative; border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--line); background: var(--panel);
  padding: 22px; min-height: 230px;
  display: flex; flex-direction: column; justify-content: flex-end; gap: 8px;
  transition: transform .25s, border-color .25s, box-shadow .25s;
}
.space-card:hover { transform: translateY(-4px); border-color: rgba(30, 155, 255, .45);
  box-shadow: 0 18px 50px rgba(0, 0, 0, .45), 0 0 40px rgba(30, 155, 255, .1); }
.space-card .art { position: absolute; inset: 0; z-index: -1; opacity: .9; }
.space-card h3 { font-size: 18px; letter-spacing: .01em; }
.space-card p { font-size: 13.5px; color: var(--dim); }
.space-card .n { position: absolute; top: 16px; left: 18px;
  font: 700 11px/1 var(--font-display); letter-spacing: .3em; color: var(--art-num); }

/* ---------- process ---------- */
.steps { counter-reset: step; }
.step-card { border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel);
  padding: 24px; counter-increment: step; position: relative; }
.step-card::before {
  content: "0" counter(step);
  font: 800 34px/1 var(--font-display);
  background: var(--silver-text); -webkit-background-clip: text; background-clip: text; color: transparent;
  opacity: .8;
}
.step-card h3 { margin: 12px 0 8px; font-size: 17px; }
.step-card p { color: var(--dim); font-size: 14px; }
.step-3d { position: relative; height: 150px; border-radius: 12px; padding: 2px;
           background: var(--chrome); box-shadow: 0 10px 28px rgba(0, 0, 0, .35); }
.step-3d .window-in { border-radius: 10px; }
[data-theme="light"] .step-3d {
  box-shadow: 0 0 24px rgba(10, 123, 224, .1), 0 14px 34px rgba(23, 34, 48, .14);
}

/* ---------- pricing ---------- */
.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 46px; align-items: stretch; }
@media (max-width: 960px) { .price-grid { grid-template-columns: 1fr; max-width: 460px; margin-left: auto; margin-right: auto; } }
.price-card {
  position: relative; display: flex; flex-direction: column;
  border: 1px solid var(--line); border-radius: 18px; background: var(--panel);
  padding: 30px 28px 26px;
  transition: transform .25s, border-color .25s, box-shadow .25s;
}
.price-card:hover { transform: translateY(-4px); border-color: var(--line2); }
.price-card.featured {
  border-color: rgba(30, 155, 255, .55);
  background: linear-gradient(180deg, rgba(30, 155, 255, .08), rgba(12, 16, 20, 0) 34%), var(--panel);
  box-shadow: 0 0 60px rgba(30, 155, 255, .12), var(--shadow);
}
.price-card .badge {
  position: absolute; top: -13px; left: 26px;
  font: 700 10.5px/1 var(--font-display); letter-spacing: .2em; text-transform: uppercase;
  color: var(--brand-ink); background: linear-gradient(180deg, var(--brand2), var(--brand));
  padding: 7px 12px; border-radius: 999px;
}
.price-card h3 { font-size: 21px; }
.price-card .tag { color: var(--dim); font-size: 13.5px; margin-top: 4px; }
.price-block { margin: 22px 0 6px; }
.price-line .amt { font: 800 34px/1 var(--font-display); color: var(--txt); }
.price-line .amt small { font-size: 15px; font-weight: 600; color: var(--dim); }
.price-line .from { display: block; font: 600 10px/1.6 var(--font-display); letter-spacing: .26em;
  text-transform: uppercase; color: var(--brand2); }
.price-sub { color: var(--dim2); font-size: 12.5px; margin-top: 4px; }
.price-card ul { list-style: none; margin: 18px 0 26px; display: grid; gap: 10px; }
.price-card li { display: flex; gap: 10px; font-size: 14px; color: var(--dim); }
.price-card li svg { flex: none; margin-top: 3px; }
.price-card .btn { margin-top: auto; justify-content: center; }

/* ---------- faq ---------- */
.faq { max-width: 760px; margin: 40px auto 0; display: grid; gap: 10px; }
.faq details { border: 1px solid var(--line); border-radius: 12px; background: var(--panel); overflow: hidden; }
.faq summary { cursor: pointer; list-style: none; padding: 18px 20px;
  font: 600 15px/1.4 var(--font-display); color: var(--txt); display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--brand); font-size: 18px; line-height: 1; transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq .a { padding: 0 20px 18px; color: var(--dim); font-size: 14.5px; }

/* ---------- contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: clamp(24px, 4vw, 56px); margin-top: 44px; align-items: start; }
@media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-facts { display: grid; gap: 14px; }
.fact { border: 1px solid var(--line); border-radius: 12px; background: var(--panel); padding: 18px 20px; }
.fact b { display: block; font: 600 11px/1 var(--font-display); letter-spacing: .24em;
  text-transform: uppercase; color: var(--brand2); margin-bottom: 6px; }
.fact p { color: var(--dim); font-size: 14px; }
.fact-mail, .foot-mail { color: var(--brand2); text-decoration: none; font-weight: 600; }
.fact-mail:hover, .foot-mail:hover { color: var(--brand); text-decoration: underline; }

.quote-card { border: 1px solid var(--line2); border-radius: 18px; background: var(--panel);
  padding: clamp(22px, 3vw, 34px); box-shadow: var(--shadow); }
.quote-card h3 { font-size: 20px; margin-bottom: 4px; }
.quote-card .qsub { color: var(--dim); font-size: 14px; margin-bottom: 22px; }
.f-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.f-grid .full { grid-column: 1 / -1; }
@media (max-width: 620px) { .f-grid { grid-template-columns: 1fr; } }
.field label { display: block; font: 600 10.5px/1 var(--font-display); letter-spacing: .18em;
  text-transform: uppercase; color: var(--dim); margin-bottom: 7px; }
.field input, .field select, .field textarea {
  width: 100%; background: var(--bg2); color: var(--txt);
  border: 1px solid var(--line2); border-radius: 10px;
  padding: 12px 14px; font: 400 14.5px/1.5 var(--font-body);
  transition: border-color .2s, box-shadow .2s;
}
.field textarea { min-height: 110px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(30, 155, 255, .18);
}
.hp { position: absolute; left: -4000px; top: -4000px; opacity: 0; pointer-events: none; }
.quote-card .btn { width: 100%; justify-content: center; margin-top: 20px; }
.form-msg { margin-top: 14px; font-size: 14px; border-radius: 10px; padding: 13px 16px; display: none; }
.form-msg.ok { display: block; color: var(--ok); border: 1px solid rgba(126, 201, 143, .4); background: rgba(126, 201, 143, .07); }
.form-msg.err { display: block; color: var(--err); border: 1px solid rgba(255, 156, 156, .4); background: rgba(255, 156, 156, .07); }

/* ---------- footer ---------- */
footer { border-top: 1px solid var(--line); padding: 56px 0 40px; background: linear-gradient(180deg, transparent, rgba(8, 11, 14, .8)); }
.foot { display: flex; justify-content: space-between; gap: 30px; flex-wrap: wrap; align-items: flex-start; }
.foot-links { display: flex; gap: 26px; flex-wrap: wrap; }
.foot-links a { color: var(--dim); font-size: 13.5px; }
.foot-links a:hover { color: var(--txt); }
.foot-note { margin-top: 26px; color: var(--dim2); font-size: 12.5px; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

/* ---------- reveal on scroll ---------- */
.rv { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.rv.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .rv { opacity: 1; transform: none; transition: none; } }

/* ---------- a11y & anchors ---------- */
section[id], header[id] { scroll-margin-top: 84px; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible,
textarea:focus-visible, summary:focus-visible {
  outline: 2px solid var(--brand); outline-offset: 2px; border-radius: 4px;
}

/* smooth theme swap */
body, .nav, footer, .fact, .quote-card, .faq details, .api-note-in, .concept-cap,
.chip, .step-card, .kicker { transition: background-color .35s ease, color .35s ease, border-color .35s ease; }

/* ================================================================
 * LIGHT THEME — bright gallery skin (dark is the default identity)
 * The 3D vitrines stay dark inside: showroom windows on a light wall.
 * ================================================================ */
[data-theme="light"] {
  --bg: #eef1f4;
  --bg2: #ffffff;
  --panel: #ffffff;
  --panel2: #f7f9fb;
  --line: #dbe2ea;
  --line2: #c6d2df;
  --txt: #161d26;
  --dim: #4d5a6a;
  --dim2: #6a7a8c;
  --brand: #0a7be0;
  --brand2: #0a7be0;
  --brand-ink: #ffffff;
  --chrome: linear-gradient(175deg, #3e4956 0%, #1b232e 16%, #46525f 30%,
                            #232d39 48%, #4d5a68 64%, #1f2833 80%, #3b4653 100%);
  --silver-text: linear-gradient(180deg, #2b3440 0%, #4d5a6a 55%, #232c37 100%);
  --ok: #1e7d3f;
  --err: #c0392b;
  --shadow: 0 24px 60px rgba(23, 34, 48, .14);
  --nav-bg: rgba(244, 246, 248, .8);
  --chip-bg: rgba(255, 255, 255, .72);
  --ghost-bg: rgba(255, 255, 255, .8);
  --brand-glow: rgba(10, 123, 224, .28);
  --art-ink: #1d2733;
  --art-ink2: #5b6c7f;
  --art-num: rgba(30, 42, 54, .68);
  --art-bg1: #e6ecf2;
  --art-bg2: #f2f6fa;
  --art-bg3: #f7fafc;
}

[data-theme="light"] body { -webkit-font-smoothing: auto; }
[data-theme="light"] body::before {
  background:
    radial-gradient(900px 520px at 50% -8%, rgba(10, 123, 224, .09), transparent 65%),
    radial-gradient(1200px 800px at 85% 115%, rgba(10, 123, 224, .05), transparent 60%),
    radial-gradient(1000px 700px at 8% 100%, rgba(38, 66, 110, .04), transparent 55%);
}
[data-theme="light"] ::selection { background: rgba(10, 123, 224, .22); }
[data-theme="light"] .hero-3,
[data-theme="light"] .hero h1 { filter: drop-shadow(0 8px 22px rgba(35, 48, 62, .18)); }
[data-theme="light"] .roofline { filter: drop-shadow(0 4px 12px rgba(35, 48, 62, .25)) brightness(.62); }
[data-theme="light"] .hero-d {
  box-shadow:
    0 0 44px rgba(10, 123, 224, .22),
    0 0 120px rgba(10, 123, 224, .1),
    0 20px 50px rgba(23, 34, 48, .22);
}
[data-theme="light"] .concept-window {
  box-shadow:
    0 0 30px rgba(10, 123, 224, .12),
    0 20px 48px rgba(23, 34, 48, .16);
}
[data-theme="light"] .concept-window:hover {
  box-shadow:
    0 0 44px rgba(10, 123, 224, .2),
    0 24px 56px rgba(23, 34, 48, .2);
}
[data-theme="light"] .space-card:hover {
  box-shadow: 0 18px 44px rgba(23, 34, 48, .12), 0 0 34px rgba(10, 123, 224, .08);
}
[data-theme="light"] .price-card.featured {
  background: linear-gradient(180deg, rgba(10, 123, 224, .06), rgba(255, 255, 255, 0) 34%), var(--panel);
  box-shadow: 0 0 44px rgba(10, 123, 224, .1), var(--shadow);
}
[data-theme="light"] .api-note-in {
  border-color: rgba(10, 123, 224, .35);
  background:
    radial-gradient(600px 200px at 12% 0%, rgba(10, 123, 224, .07), transparent 60%),
    var(--panel);
}
[data-theme="light"] .form-msg.ok { color: var(--ok); border-color: rgba(30, 125, 63, .35); background: rgba(30, 125, 63, .06); }
[data-theme="light"] .form-msg.err { color: var(--err); border-color: rgba(192, 57, 43, .35); background: rgba(192, 57, 43, .06); }
[data-theme="light"] footer { background: linear-gradient(180deg, transparent, rgba(224, 230, 237, .7)); }
[data-theme="light"] .window-in { background: radial-gradient(120% 90% at 70% 10%, #16222e 0%, #06090c 62%); }