/* Embedura — design system + layout */

/* ---------- Tokens ---------- */
:root {
  --bg: #060B16;
  --bg-2: #0A1324;
  --surface: #0E1A2F;
  --surface-2: #13223B;
  --line: #1E3150;
  --line-strong: #2A4268;

  --text: #E8EEF7;
  --text-2: #A9B6C9;
  --text-3: #7E8DA3;

  --cyan: #22D3EE;
  --green: #34D399;
  --grad: linear-gradient(135deg, var(--cyan) 0%, var(--green) 100%);

  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "Cascadia Code", "SF Mono", Consolas, "Liberation Mono", monospace;

  --radius: 14px;
  --radius-sm: 8px;
  --wrap: 1160px;
  --gutter: clamp(16px, 4vw, 32px);
  --section: clamp(64px, 10vw, 112px);
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.65;
  overflow-x: hidden;
}

h1, h2, h3 { line-height: 1.15; margin: 0 0 .5em; letter-spacing: -0.02em; }
h1 { font-size: clamp(2.25rem, 6vw, 3.75rem); font-weight: 800; }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); font-weight: 750; }
h3 { font-size: 1.2rem; font-weight: 700; letter-spacing: -0.01em; }
p { margin: 0 0 1em; }
a { color: var(--cyan); text-underline-offset: 3px; }
a:hover { color: var(--green); }
img, svg { max-width: 100%; display: block; }
ul, ol { margin: 0; padding: 0; }

:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; border-radius: 4px; }

.skip {
  position: absolute; left: 12px; top: -48px; z-index: 100;
  background: var(--cyan); color: var(--bg); padding: 8px 14px; border-radius: var(--radius-sm);
  font-weight: 700; text-decoration: none;
}
.skip:focus { top: 12px; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }
.grad-text {
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}
.eyebrow {
  font-family: var(--mono);
  font-size: .8rem; font-weight: 600;
  letter-spacing: .18em; text-transform: uppercase;
  color: var(--green);
  margin: 0 0 1rem;
}
.lead { font-size: clamp(1.05rem, 2.2vw, 1.2rem); color: var(--text-2); max-width: 40em; }
.muted { color: var(--text-2); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  min-height: 48px; padding: .75em 1.4em;
  border-radius: 999px; border: 1px solid transparent;
  font: inherit; font-weight: 700; font-size: 1rem; line-height: 1.2;
  text-decoration: none; cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease, background-color .15s ease, border-color .15s ease;
}
.btn-primary { background: var(--grad); color: #04101C; }
.btn-primary:hover { color: #04101C; transform: translateY(-1px); box-shadow: 0 8px 24px -8px rgba(34, 211, 238, .55); }
.btn-ghost { border-color: var(--line-strong); color: var(--text); background: rgba(255, 255, 255, .02); }
.btn-ghost:hover { color: var(--text); border-color: var(--cyan); background: rgba(34, 211, 238, .06); }
.btn-sm { min-height: 40px; padding: .5em 1.1em; font-size: .95rem; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(6, 11, 22, .85);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); }
.brand:hover { color: var(--text); }
.brand img { width: 36px; height: 36px; }
.brand span { font-weight: 800; letter-spacing: .14em; font-size: 1.05rem; }

.nav ul { list-style: none; display: flex; align-items: center; gap: 4px; }
.nav a:not(.btn) {
  display: block; padding: 8px 12px; border-radius: var(--radius-sm);
  color: var(--text-2); text-decoration: none; font-weight: 550; font-size: .97rem;
}
.nav a:not(.btn):hover, .nav a[aria-current="page"] { color: var(--text); background: rgba(255, 255, 255, .04); }
.nav .btn { margin-left: 8px; }

.nav-toggle {
  display: none;
  width: 44px; height: 44px; padding: 0;
  border: 1px solid var(--line-strong); border-radius: var(--radius-sm);
  background: transparent; color: var(--text); cursor: pointer;
}
.nav-toggle svg { margin: auto; }

@media (max-width: 860px) {
  /* Without JS the menu simply wraps below the logo. */
  .header-inner { flex-wrap: wrap; padding-block: 10px; }
  .nav { width: 100%; }
  .nav ul { flex-wrap: wrap; }
  .nav .btn { margin-left: 0; }

  .js .header-inner { flex-wrap: nowrap; padding-block: 0; }
  .js .nav-toggle { display: grid; }
  .js .nav {
    display: none;
    position: absolute; left: 0; right: 0; top: 100%;
    background: var(--bg-2); border-bottom: 1px solid var(--line);
    padding: 8px var(--gutter) 20px;
  }
  .js .nav.open { display: block; }
  .js .nav ul { flex-direction: column; align-items: stretch; gap: 2px; }
  .js .nav a:not(.btn) { padding: 12px; }
  .js .nav .btn { margin-top: 10px; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: clamp(48px, 9vw, 104px) 0 var(--section);
  background:
    radial-gradient(60% 70% at 78% 40%, rgba(34, 211, 238, .10), transparent 70%),
    radial-gradient(50% 60% at 10% 0%, rgba(52, 211, 153, .06), transparent 70%);
  overflow: hidden;
}
.hero::before {
  /* subtle PCB grid */
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(34, 211, 238, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 211, 238, .045) 1px, transparent 1px);
  background-size: 40px 40px;
  -webkit-mask-image: radial-gradient(ellipse at 70% 40%, #000 0%, transparent 70%);
  mask-image: radial-gradient(ellipse at 70% 40%, #000 0%, transparent 70%);
}
.hero-grid { position: relative; display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; }
.hero h1 { margin-bottom: .45em; }
.hero .lead { margin-bottom: 2rem; }
.hero-note { margin-top: 1.5rem; font-size: .92rem; color: var(--text-3); }
.hero-note strong { color: var(--text-2); font-weight: 600; }
.hero-art { width: 100%; max-width: 440px; margin-left: auto; }

@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; gap: 32px; }
  .hero-art { max-width: 260px; margin: 0 auto; order: -1; }
}

/* ---------- Sections ---------- */
.section { padding: var(--section) 0; }
.section-alt { background: var(--bg-2); border-block: 1px solid var(--line); }
.section-head { max-width: 46em; margin-bottom: clamp(32px, 5vw, 48px); }
.section-head p { color: var(--text-2); }

/* ---------- Cards ---------- */
.cards { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.card {
  position: relative;
  display: flex; flex-direction: column;
  padding: 28px 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color .2s ease, transform .2s ease;
}
.card:hover { border-color: var(--line-strong); }
.card p { color: var(--text-2); font-size: .98rem; }
.card .icon {
  width: 48px; height: 48px; margin-bottom: 18px;
  display: grid; place-items: center;
  border-radius: 12px;
  background: rgba(34, 211, 238, .08);
  border: 1px solid rgba(34, 211, 238, .25);
  color: var(--cyan);
}
.card .more { margin-top: auto; padding-top: 8px; font-weight: 650; text-decoration: none; }
.card .more::after { content: " →"; }

.tags { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; margin: 0 0 18px; }
.tags li {
  font-family: var(--mono); font-size: .75rem;
  padding: 3px 9px; border-radius: 999px;
  color: var(--text-2); border: 1px solid var(--line-strong);
}

/* ---------- Why list ---------- */
.why { list-style: none; display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.why li {
  display: flex; gap: 16px; align-items: flex-start;
  padding: 22px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--line);
}
.why .check {
  flex: none; width: 28px; height: 28px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--grad); color: #04101C;
}
.why h3 { font-size: 1.05rem; margin-bottom: .3em; }
.why p { margin: 0; color: var(--text-2); font-size: .97rem; }

/* ---------- Tech strip ---------- */
.stack { list-style: none; display: flex; flex-wrap: wrap; gap: 10px; }
.stack li {
  font-family: var(--mono); font-size: .9rem; font-weight: 600;
  padding: 8px 16px; border-radius: 999px;
  color: var(--cyan);
  background: rgba(34, 211, 238, .05);
  border: 1px solid rgba(34, 211, 238, .35);
}

/* ---------- Steps ---------- */
.steps { list-style: none; counter-reset: step; display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.steps li {
  counter-increment: step;
  position: relative; padding: 24px 22px 22px;
  border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--line);
}
.steps li::before {
  content: counter(step, decimal-leading-zero);
  display: block; margin-bottom: 10px;
  font-family: var(--mono); font-weight: 700; font-size: .9rem;
  color: var(--green);
}
.steps h3 { font-size: 1.05rem; margin-bottom: .3em; }
.steps p { margin: 0; color: var(--text-2); font-size: .95rem; }

/* ---------- CTA ---------- */
.cta {
  position: relative; overflow: hidden;
  padding: clamp(36px, 6vw, 64px);
  border-radius: calc(var(--radius) * 1.5);
  background:
    radial-gradient(80% 120% at 100% 0%, rgba(34, 211, 238, .16), transparent 60%),
    radial-gradient(70% 120% at 0% 100%, rgba(52, 211, 153, .12), transparent 60%),
    var(--surface);
  border: 1px solid var(--line-strong);
  text-align: center;
}
.cta h2 { max-width: 20em; margin-inline: auto; }
.cta p { color: var(--text-2); max-width: 36em; margin: 0 auto 1.75rem; }
.cta .btn-row { justify-content: center; }
.cta .small { margin: 1.5rem 0 0; font-size: .95rem; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); background: var(--bg-2); padding: 56px 0 28px; font-size: .95rem; }
.footer-grid { display: grid; gap: 32px; grid-template-columns: 1.4fr 1fr 1fr 1fr; }
.footer-grid p { color: var(--text-2); max-width: 26em; }
.footer-grid h2 { font-size: .8rem; font-family: var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--text-3); margin-bottom: 1em; }
.footer-grid ul { list-style: none; display: grid; gap: 8px; }
.footer-grid a { color: var(--text-2); text-decoration: none; }
.footer-grid a:hover { color: var(--cyan); }
.footer-bottom {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px;
  margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--line);
  color: var(--text-3); font-size: .88rem;
}
.footer-bottom p { margin: 0; }

@media (max-width: 860px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > :first-child { grid-column: 1 / -1; }
}

/* ---------- Small helpers ---------- */
.after-list { margin: 24px 0 0; }
.section-cta { padding-top: 0; }
.footer-tag { margin-top: 14px; }

/* ---------- Inner pages ---------- */
.page-hero {
  position: relative;
  padding: clamp(48px, 8vw, 88px) 0 clamp(36px, 6vw, 56px);
  border-bottom: 1px solid var(--line);
  background: radial-gradient(60% 90% at 85% 0%, rgba(34, 211, 238, .10), transparent 70%);
}
.page-hero h1 { font-size: clamp(2rem, 5vw, 3rem); max-width: 18em; }
.page-hero .lead { margin: 0; }

/* Service blocks */
.service {
  display: grid; grid-template-columns: 1.5fr 1fr; gap: clamp(24px, 4vw, 48px);
  padding: clamp(40px, 6vw, 64px) 0;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 80px;
}
.service:last-of-type { border-bottom: 0; }
.service h2 { font-size: clamp(1.6rem, 3.5vw, 2.1rem); }
.service h3 { font-size: 1rem; margin: 1.6em 0 .7em; color: var(--text); }
.service p { color: var(--text-2); }

.list-check { list-style: none; display: grid; gap: 8px; }
.list-check li { position: relative; padding-left: 28px; color: var(--text-2); }
.list-check li::before {
  content: ""; position: absolute; left: 2px; top: .5em;
  width: 14px; height: 8px;
  border-left: 2px solid var(--green); border-bottom: 2px solid var(--green);
  transform: rotate(-45deg);
}
.list-cols { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); column-gap: 24px; }

.price-box {
  align-self: start; position: sticky; top: 92px;
  padding: 28px 24px;
  border-radius: var(--radius);
  background:
    radial-gradient(90% 80% at 100% 0%, rgba(34, 211, 238, .12), transparent 70%),
    var(--surface);
  border: 1px solid var(--line-strong);
}
.price-box .label { font-family: var(--mono); font-size: .78rem; letter-spacing: .14em; text-transform: uppercase; color: var(--text-3); margin: 0 0 .4rem; }
.price-box .price { font-size: 2.2rem; font-weight: 800; line-height: 1.1; margin: 0; letter-spacing: -0.02em; }
.price-box .price-inr { color: var(--text-2); font-weight: 600; margin: .25rem 0 1.2rem; }
.price-box dl { margin: 0 0 1.4rem; display: grid; gap: 10px; font-size: .95rem; }
.price-box dt { color: var(--text-3); font-size: .85rem; }
.price-box dd { margin: 0; color: var(--text); }
.price-box .btn { width: 100%; }

@media (max-width: 860px) {
  .service { grid-template-columns: 1fr; }
  .price-box { position: static; }
}

.notice {
  padding: 20px 22px; border-radius: var(--radius);
  border: 1px solid var(--line-strong); background: var(--surface);
  color: var(--text-2);
}
.notice h2, .notice h3 { font-size: 1.05rem; color: var(--text); }
.notice p:last-child, .notice ul:last-child { margin-bottom: 0; }

/* Prose (legal, about) */
.prose { max-width: 46em; }
.prose h2 { font-size: 1.4rem; margin: 2.2em 0 .6em; }
.prose h2:first-child { margin-top: 0; }
.prose h3 { font-size: 1.1rem; margin: 1.6em 0 .5em; }
.prose p, .prose li { color: var(--text-2); }
.prose ul, .prose ol { padding-left: 1.3em; margin: 0 0 1em; }
.prose li { margin-bottom: .4em; }
.prose strong { color: var(--text); }
.updated { font-family: var(--mono); font-size: .85rem; color: var(--text-3); }

/* FAQ */
.faq { display: grid; gap: 12px; max-width: 52em; }
.faq details {
  border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--surface); padding: 0 22px;
}
.faq summary {
  cursor: pointer; list-style: none;
  padding: 18px 28px 18px 0; position: relative;
  font-weight: 650;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; position: absolute; right: 0; top: 50%; transform: translateY(-50%);
  font-family: var(--mono); font-size: 1.3rem; color: var(--cyan);
}
.faq details[open] summary::after { content: "−"; }
.faq details p { color: var(--text-2); margin: 0 0 18px; }

/* Contact */
.contact-grid { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.contact-grid .card h2 { font-size: 1.15rem; }
.big-link { font-size: 1.15rem; font-weight: 700; word-break: break-word; }

/* 404 */
.err { text-align: center; padding: clamp(72px, 14vw, 140px) 0; }
.err .code { font-family: var(--mono); font-size: clamp(4rem, 16vw, 8rem); font-weight: 800; line-height: 1; margin: 0 0 .2em; }
.err .btn-row { justify-content: center; }

.two-col { display: grid; gap: clamp(24px, 4vw, 48px); grid-template-columns: 1fr 1fr; align-items: start; }
@media (max-width: 860px) { .two-col { grid-template-columns: 1fr; } }
.err .lead { margin-inline: auto; }
.card .from { margin: 0 0 12px; font-size: .92rem; color: var(--text-3); }
.card .from strong { color: var(--text); font-size: 1.05rem; }
.notice ul + h2, .notice ul + h3 { margin-top: 1.4em; }