/* =========================================================
   YACHAY HUB XYZ — style.css
   Estilo HMI / Industrial
========================================================= */

/* ================== RESET ================== */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  line-height: 1.55;
  background: var(--bg);
  color: var(--fg);
  overflow-x: hidden;
}

/* ================== THEME VARIABLES ================== */

:root {
  --bg: #0b0c10;
  --panel: #12131a;
  --panel-2: #181a24;
  --fg: #e6e7eb;
  --muted: #9aa0b2;

  --accent: #00ebff;
  --accent-2: #ff00be;

  --border: rgba(255,255,255,.08);
  --grid: rgba(255,255,255,.06);

  --btn-bg: #1c1e2b;
  --btn-fg: #ffffff;

  --radius: 14px;
  --radius-sm: 10px;
}

html[data-theme="light"] {
  --bg: #ffffff;
  --panel: #f4f5f8;
  --panel-2: #eceef3;
  --fg: #1e1f46;
  --muted: #4a4f7a;

  --accent: #2b5b2c;
  --accent-2: #1e1f46;

  --border: rgba(30,31,70,.15);
  --grid: rgba(30,31,70,.08);

  --btn-bg: #e9ebf2;
  --btn-fg: #1e1f46;
}

/* ================== BACKGROUND ================== */

.bg {
  position: fixed;
  inset: 0;
  background: radial-gradient(1200px 600px at 70% -20%, rgba(0,235,255,.06), transparent 60%);
  z-index: -3;
}

html[data-theme="light"] .bg {
  background: radial-gradient(1200px 600px at 70% -20%, rgba(43,91,44,.08), transparent 60%);
}

.grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--grid) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid) 1px, transparent 1px);
  background-size: 48px 48px;
  z-index: -2;
}

/* Cursor glow (desktop only, subtle) */
.cursor-glow {
  position: fixed;
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, rgba(0,235,255,.12), transparent 65%);
  pointer-events: none;
  transform: translate(-50%, -50%);
  z-index: -1;
}

/* ================== LAYOUT ================== */

.wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px;
}

header {
  border-bottom: 1px solid var(--border);
  background: rgba(0,0,0,.35);
  backdrop-filter: blur(6px);
}

html[data-theme="light"] header {
  background: rgba(255,255,255,.6);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
}

.brand .name {
  font-weight: 700;
  letter-spacing: .3px;
}

.sup {
  font-size: .6em;
  vertical-align: super;
  opacity: .8;
}

/* ================== BUTTONS ================== */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  background: var(--btn-bg);
  color: var(--btn-fg);
  border: 1px solid var(--border);
  text-decoration: none;
  font-weight: 500;
  cursor: pointer;
}

.btn.primary {
  background: var(--accent);
  color: #000;
  border-color: transparent;
}

.theme-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--fg);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

/* ================== HERO ================== */

.hero {
  padding: 96px 0 72px;
}

.hero-shell {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 48px;
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--muted);
}

.kicker .dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
}

.h1 {
  margin: 18px 0 8px;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.15;
}

.tagline {
  color: var(--muted);
  margin-bottom: 22px;
}

.lead {
  max-width: 680px;
  color: var(--fg);
}

/* ================== CARDS ================== */

.cards {
  display: grid;
  gap: 20px;
  margin: 36px 0;
}

.cards-3mt {
  grid-template-columns: repeat(auto-fit, minmax(220px,1fr));
}

.card {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 22px;
}

.card h3 {
  margin: 0 0 6px;
}

/* ================== ACTIONS & CHIPS ================== */

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
  font-size: .85rem;
}

.chips span {
  background: var(--accent-2);
  color: #fff;
  padding: 6px 10px;
  border-radius: 999px;
}

.chips code {
  background: transparent;
  border: 1px dashed var(--border);
  padding: 6px 10px;
  border-radius: 999px;
  color: var(--muted);
}

/* ================== CONTACT ================== */

.section-title {
  margin: 72px 0 28px;
}

.contact {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(260px,1fr));
}

.box {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 24px;
}

.label {
  display: block;
  font-size: .8rem;
  margin: 14px 0 6px;
  color: var(--muted);
}

input,
textarea {
  width: 100%;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  color: var(--fg);
}

textarea {
  min-height: 96px;
  resize: vertical;
}

.copied {
  display: none;
  margin-left: 10px;
  color: var(--accent);
}

/* ================== FOOTER ================== */

footer {
  margin-top: 96px;
  border-top: 1px solid var(--border);
}

.footer-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  padding: 22px 0;
  color: var(--muted);
}

.footer-tag {
  font-size: .8rem;
  letter-spacing: .12em;
}

/* ================== REVEAL ================== */

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .6s ease, transform .6s ease;
}

.reveal.on {
  opacity: 1;
  transform: translateY(0);
}

/* ================== RESPONSIVE ================== */

@media (max-width: 680px) {
  .hero-shell {
    padding: 28px;
  }

  .hero {
    padding: 72px 0 56px;
  }
}