/* =========================================================
   Perfex Data Technology — dark, mouse-reactive bento site
   ========================================================= */

:root {
  --mx: 50vw;
  --my: 40vh;

  --bg: #07070a;
  --bg-raised: #0c0c10;
  --ink: #f5f5f7;
  --ink-dim: #a2a2ad;
  --ink-dimmer: #6b6b75;
  --line: rgba(255,255,255,0.09);
  --line-strong: rgba(255,255,255,0.18);

  --c1: #8b5cf6;
  --c2: #ec4899;
  --c3: #ffb020;
  --grad: linear-gradient(120deg, var(--c1) 0%, var(--c2) 55%, var(--c3) 100%);

  --ok: #4ee08a;
  --warn: #ffb238;
  --crit: #ff5c5c;

  --display: 'Sora', 'Inter', sans-serif;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, monospace;

  --container: 1220px;
  --ease: cubic-bezier(.2,.8,.2,1);
  --radius: 18px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3 {
  font-family: var(--display);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 .4em;
  color: var(--ink);
}
.grad-text {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

p { margin: 0 0 1em; color: var(--ink-dim); }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; background: none; border: none; color: inherit; }
img { max-width: 100%; display: block; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 32px; }

/* ---------- Ambient mouse-reactive background ---------- */
.spotlight-grid {
  position: fixed; inset: 0; z-index: -2;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(420px circle at var(--mx) var(--my), black 0%, transparent 72%);
  mask-image: radial-gradient(420px circle at var(--mx) var(--my), black 0%, transparent 72%);
}
.spotlight-glow {
  position: fixed; inset: 0; z-index: -1;
  pointer-events: none;
  background: radial-gradient(650px circle at var(--mx) var(--my), rgba(139,92,246,0.16), transparent 62%);
}
.grain {
  position: fixed; inset: 0; z-index: -1;
  opacity: .035;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- Buttons ---------- */
.btn {
  position: relative;
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 26px;
  font-family: var(--sans);
  font-size: 14.5px;
  font-weight: 600;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
}
.btn span { position: relative; z-index: 1; }
.btn i { font-style: normal; }
.btn-grad {
  background: var(--grad);
  color: #0a0a0d;
  box-shadow: 0 10px 30px -10px rgba(236,72,153,0.5);
}
.btn-grad:hover { transform: translateY(-2px); box-shadow: 0 16px 38px -8px rgba(236,72,153,0.65); }
.btn-outline { border-color: var(--line-strong); color: var(--ink); }
.btn-outline:hover { border-color: rgba(255,255,255,0.4); transform: translateY(-2px); }
.btn-block { width: 100%; justify-content: center; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  padding: 22px 0;
  border-bottom: 1px solid transparent;
  transition: background .3s var(--ease), border-color .3s var(--ease), padding .3s var(--ease);
}
.site-header.scrolled {
  background: rgba(7,7,10,0.75);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--line);
  padding: 14px 0;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand-logo { height: 26px; width: auto; display: block; }

.main-nav { display: flex; align-items: center; gap: 32px; }
.main-nav a { font-size: 14px; font-weight: 500; color: var(--ink-dim); transition: color .2s; font-variant-ligatures: none; }
.main-nav a:hover { color: var(--ink); }

.header-actions { display: flex; align-items: center; gap: 18px; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 6px; }
.nav-toggle span { width: 20px; height: 1.5px; background: var(--ink); transition: transform .25s var(--ease), opacity .25s; }

/* ---------- Hero ---------- */
.hero { padding: 96px 0 120px; }
.hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center; }
.eyebrow {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--ink-dimmer);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 22px;
}
.hero h1 { font-size: clamp(2.4rem, 4.6vw, 3.9rem); }
.hero-sub { font-size: 17.5px; max-width: 50ch; margin-top: 22px; }
.hero-cta { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; margin-top: 32px; }

/* ---------- Tilt + glow bento cards ---------- */
.hero-visual { position: relative; display: flex; flex-direction: column; gap: 22px; }
.tilt-wrap { perspective: 900px; }
.bento-card {
  position: relative;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--bg-raised);
  padding: 26px;
  overflow: hidden;
  transition: transform .5s var(--ease), border-color .3s;
  transform: translateZ(0);
  will-change: transform;
}
.glow-card::before {
  content: '';
  position: absolute; inset: -1px;
  border-radius: inherit;
  background: radial-gradient(220px circle at var(--px, 50%) var(--py, 50%), rgba(139,92,246,0.35), transparent 60%);
  opacity: 0;
  transition: opacity .4s var(--ease);
  pointer-events: none;
}
.glow-card:hover::before { opacity: 1; }

.card-label, .panel-label { font-family: var(--mono); font-size: 11.5px; color: var(--ink-dimmer); text-transform: uppercase; letter-spacing: .05em; }
.card-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 22px; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 0 0 rgba(78,224,138,.6); animation: pulse 1.8s infinite; }
@keyframes pulse { 0%{box-shadow:0 0 0 0 rgba(78,224,138,.55);} 70%{box-shadow:0 0 0 8px rgba(78,224,138,0);} 100%{box-shadow:0 0 0 0 rgba(78,224,138,0);} }

.metric-row { display: flex; gap: 34px; margin-bottom: 22px; }
.metric { display: flex; flex-direction: column; }
.metric-value { font-family: var(--display); font-size: 26px; font-weight: 700; }
.metric-value small { font-size: 14px; font-weight: 500; color: var(--ink-dim); }
.metric-label { font-size: 12px; color: var(--ink-dimmer); margin-top: 3px; }

.mini-bars { display: flex; align-items: flex-end; gap: 5px; height: 46px; }
.mini-bars i { flex: 1; display: block; height: var(--h); border-radius: 3px 3px 0 0; background: linear-gradient(180deg, var(--c1), var(--c2)); opacity: .55; }

.small-card { display: flex; flex-direction: column; align-items: center; gap: 16px; }
.confidence-ring { position: relative; width: 80px; height: 80px; }
.confidence-ring svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.ring-value { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; font-family: var(--display); font-weight: 700; font-size: 16px; }

/* ---------- Sections ---------- */
.section { padding: 120px 0; }
.section-line { border-top: 1px solid var(--line); }
.section-head { margin-bottom: 56px; max-width: 660px; }
.section-head h2 { font-size: clamp(1.9rem, 3.2vw, 2.6rem); }

/* ---------- Thesis ---------- */
.thesis-grid { display: grid; grid-template-columns: .8fr 2.2fr; gap: 40px; }
.section-num { display: block; font-family: var(--mono); font-size: 13px; color: var(--ink-dimmer); margin-top: 10px; }
.thesis-statement { font-size: clamp(1.35rem, 2.2vw, 1.8rem); font-weight: 500; letter-spacing: -0.01em; color: var(--ink); font-family: var(--display); max-width: 36ch; }
.thesis-sub { font-size: 15.5px; max-width: 58ch; margin-top: 24px; }

/* ---------- Bento grid ---------- */
.bento-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.bento-span-2 { grid-column: span 2; }
.bento-grid .bento-card { height: 100%; }
.cap-num { font-family: var(--mono); font-size: 12.5px; color: var(--ink-dimmer); display: block; margin-bottom: 16px; }
.bento-card h3 { font-size: 19px; margin-bottom: .35em; }
.bento-card p { font-size: 14px; margin-bottom: 0; }

.glance-grid { grid-template-columns: repeat(3, 1fr); }
.glance-value { display: block; font-family: var(--display); font-size: 19px; font-weight: 700; margin-top: 10px; }

/* ---------- Lumaple ---------- */
.lumaple-tag { font-size: 18px; font-weight: 600; margin-top: -6px; }
.lumaple-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: start; }
.lumaple-desc { font-size: 16px; max-width: 52ch; }
.feature-list { list-style: none; margin: 26px 0 30px; padding: 0; display: flex; flex-direction: column; gap: 18px; }
.feature-list li { display: flex; gap: 16px; align-items: flex-start; }
.feature-list i { font-style: normal; font-family: var(--mono); font-size: 12px; color: var(--ink-dimmer); margin-top: 4px; }
.feature-list strong { display: block; font-size: 15px; color: var(--ink); font-weight: 600; }
.feature-list span { font-size: 13.5px; color: var(--ink-dim); }

.incident-panel { padding: 26px; }
.incident-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; padding-bottom: 18px; border-bottom: 1px solid var(--line); }
.status-chip { font-family: var(--mono); font-size: 11.5px; font-weight: 500; color: var(--ok); background: rgba(78,224,138,0.12); padding: 4px 10px; border-radius: 999px; }
.incident-timeline { list-style: none; margin: 0; padding: 0; }
.incident-timeline li { position: relative; display: grid; grid-template-columns: 44px 18px 1fr; gap: 4px; padding-bottom: 22px; }
.incident-timeline li:last-child { padding-bottom: 0; }
.it-time { font-family: var(--mono); font-size: 11px; color: var(--ink-dimmer); padding-top: 2px; }
.it-dot { width: 8px; height: 8px; border-radius: 50%; margin: 4px auto 0; position: relative; z-index: 1; }
.incident-timeline li:not(:last-child)::before { content: ''; position: absolute; left: 48px; top: 15px; bottom: -8px; width: 1px; background: var(--line-strong); }
.dot-crit { background: var(--crit); box-shadow: 0 0 0 3px rgba(255,92,92,.15); }
.dot-warn { background: var(--warn); box-shadow: 0 0 0 3px rgba(255,178,56,.15); }
.dot-ok { background: var(--ok); box-shadow: 0 0 0 3px rgba(78,224,138,.15); }
.it-text { font-size: 13.5px; color: var(--ink-dim); padding-top: 1px; }
.incident-foot { display: flex; justify-content: space-between; align-items: center; margin-top: 20px; padding-top: 18px; border-top: 1px solid var(--line); font-size: 13px; color: var(--ink-dim); }
.incident-foot strong { font-family: var(--display); font-size: 17px; }

/* ---------- Approach ---------- */
.approach-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.approach-step { padding-top: 22px; border-top: 1px solid var(--line-strong); }
.approach-num { font-family: var(--mono); font-size: 13px; color: var(--c2); }
.approach-step h3 { font-size: 18px; margin-top: 12px; font-family: var(--display); }
.approach-step p { font-size: 14.5px; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 56px; }
.contact-info { display: flex; flex-direction: column; gap: 20px; }
.info-row { display: flex; flex-direction: column; gap: 4px; padding-bottom: 18px; border-bottom: 1px solid var(--line); }
.info-label { font-family: var(--mono); font-size: 11.5px; text-transform: uppercase; letter-spacing: .05em; color: var(--ink-dimmer); }
.info-value, .info-value a { font-size: 16.5px; font-weight: 600; color: var(--ink); font-family: var(--display); }
.info-value a:hover { color: var(--c2); }

.map-embed { margin-top: 4px; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); filter: grayscale(1) invert(0.92) contrast(0.85); }
.map-embed iframe { width: 100%; height: 210px; border: 0; display: block; }

.contact-form { display: flex; flex-direction: column; gap: 24px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.field { display: flex; flex-direction: column; gap: 9px; }
.field label { font-family: var(--mono); font-size: 12px; text-transform: uppercase; letter-spacing: .05em; color: var(--ink-dimmer); }
.field .optional { text-transform: none; }
.field input, .field textarea {
  background: transparent; border: none; border-bottom: 1px solid var(--line-strong);
  border-radius: 0; padding: 8px 2px 12px; color: var(--ink);
  font-family: var(--sans); font-size: 15.5px; resize: vertical;
  transition: border-color .2s;
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--c2); }
.hp-field { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }
.form-status { font-family: var(--mono); font-size: 13px; min-height: 20px; margin: 0; }
.form-status.ok { color: var(--ok); }
.form-status.err { color: var(--crit); }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); padding-top: 50px; margin-top: 20px; }
.footer-top { padding-bottom: 30px; }
.footer-word {
  font-family: var(--display);
  font-size: clamp(2.4rem, 8.5vw, 6.5rem);
  font-weight: 800;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  opacity: .16;
  line-height: 1;
  display: block;
}
.footer-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 30px; padding: 30px 0 40px; border-top: 1px solid var(--line); }
.footer-col { display: flex; flex-direction: column; gap: 12px; }
.footer-col h4 { font-family: var(--mono); font-size: 11.5px; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-dimmer); margin-bottom: 2px; }
.footer-col a, .footer-col span { font-size: 14.5px; color: var(--ink-dim); }
.footer-col a:hover { color: var(--c2); }
.footer-bottom {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px;
  border-top: 1px solid var(--line);
  padding: 20px 0;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-dimmer);
}

/* ---------- Reveal ---------- */
[data-reveal] { opacity: 0; transform: translateY(24px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .status-dot { animation: none; }
  .spotlight-grid, .spotlight-glow { display: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1000px) {
  .hero-grid, .lumaple-grid, .contact-grid, .thesis-grid { grid-template-columns: 1fr; }
  .bento-span-2 { grid-column: span 2; }
  .bento-grid { grid-template-columns: repeat(2, 1fr); }
  .glance-grid { grid-template-columns: 1fr; }
  .approach-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 760px) {
  .main-nav { display: none; }
  .nav-toggle { display: flex; }
  .header-actions .btn-grad { display: none; }
  .section { padding: 80px 0; }
  .hero { padding: 60px 0 80px; }
  .bento-grid { grid-template-columns: 1fr; }
  .bento-span-2 { grid-column: span 1; }
  .approach-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
}

@media (max-width: 760px) {
  body.nav-open .main-nav {
    display: flex; flex-direction: column;
    position: fixed; top: 62px; left: 20px; right: 20px;
    background: rgba(12,12,16,0.98);
    border: 1px solid var(--line-strong);
    border-radius: var(--radius);
    padding: 8px 18px;
    backdrop-filter: blur(20px);
    z-index: 90;
    gap: 0;
  }
  body.nav-open .main-nav a { padding: 15px 0; border-bottom: 1px solid var(--line); }
  body.nav-open .main-nav a:last-child { border-bottom: none; }
}