/* Batista Technologies — High-tech minimal theme (PNG logos) */

/* ---------- Theme tokens ---------- */
:root {
  --bg: #ffffff;          /* light */
  --fg: #1e1e1e;
  --muted: #565656;
  --accent: #1aa7ff;
  --line: rgba(0,0,0,0.12);
  --card: rgba(0,0,0,0.035);
  --shadow: 0 10px 30px rgba(0,0,0,.12), 0 2px 10px rgba(0,0,0,.06);

  --t-fast: 180ms cubic-bezier(.2,.7,.2,1);
  --t-slow: 360ms cubic-bezier(.2,.7,.2,1);
}

:root[data-theme="dark"] {
  --bg: #1e1e1e;          /* dark */
  --fg: #ffffff;
  --muted: #b8b8b8;
  --accent: #66c7ff;
  --line: rgba(255,255,255,0.12);
  --card: rgba(255,255,255,0.06);
  --shadow: 0 10px 30px rgba(0,0,0,.35), 0 2px 10px rgba(0,0,0,.25);
}

/* ---------- Base ---------- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: "Michroma", system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, "Noto Sans";
  letter-spacing: 0.01em;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Smooth theme transitions:
   We can’t animate CSS variables directly, but properties that use them will transition. */
body, header, section, footer, .card, .btn, input, textarea, .logo-tile, .logo-wrap {
  transition:
    background-color var(--t-slow),
    color var(--t-slow),
    border-color var(--t-slow),
    box-shadow var(--t-slow),
    opacity var(--t-fast);
}
/* Stronger transition right when toggling */
:root.theming body,
:root.theming header,
:root.theming section,
:root.theming footer,
:root.theming .card,
:root.theming .btn,
:root.theming input,
:root.theming textarea,
:root.theming .logo-tile,
:root.theming .logo-wrap {
  transition-duration: 380ms;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }

.container { width: min(1100px, 92vw); margin: 0 auto; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: saturate(140%) blur(10px);
  background: color-mix(in oklab, var(--bg) 86%, #ffffff 14%);
  border-bottom: 1px solid var(--line);
  transition: background-color var(--t-slow), border-color var(--t-slow), color var(--t-slow);
}
.nav { display: flex; align-items: center; justify-content: space-between; padding: 14px 0; }

/* Theme-aware logos: show one, hide the other */
.brand-full { height: 50px; width: auto; }
.brand-dark { display: none; }  /* default hidden in light */
.brand-light { display: block; }

:root[data-theme="dark"] .brand-dark { display: block; }
:root[data-theme="dark"] .brand-light { display: none; }

.navlinks { display: flex; gap: 18px; align-items: center; }
.navlinks a { padding: 8px 6px; opacity: .9; transition: opacity var(--t-fast); }
.navlinks a:hover { opacity: 1; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 16px; border-radius: 14px;
  border: 1px solid var(--fg); font-weight: 600;
  transition: transform var(--t-fast), background var(--t-fast), color var(--t-fast), border-color var(--t-fast);
  cursor: pointer;
}
.btn:hover { transform: translateY(-1px); background: var(--fg); color: var(--bg); }
.btn-ghost { background: transparent; border-color: var(--line); }
.btn-ghost:hover { background: var(--card); color: var(--fg); border-color: var(--fg); }

#themeIcon { display: inline-block; transform: rotate(0deg); transition: transform var(--t-fast); }
:root[data-theme="dark"] #themeIcon { transform: rotate(-20deg); }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; padding: clamp(64px, 12vw, 120px) 0 40px; }
.grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: min(6vw, 48px); align-items: center; }
.kicker { color: var(--muted); letter-spacing: .18em; text-transform: uppercase; font-size: .8rem; }
h1 { font-size: clamp(1.9rem, 4.6vw, 3.6rem); line-height: 1.15; margin: 10px 0 18px; transition: color var(--t-slow); }
.lead { color: color-mix(in oklab, var(--fg) 72%, var(--muted) 28%); max-width: 60ch; transition: color var(--t-slow); }
.cta-row { display: flex; gap: 14px; margin-top: 26px; flex-wrap: wrap; }

/* ---------- Logo tile ---------- */
.logo-tile {
  position: relative; border-radius: 24px; padding: 28px;
  background: var(--card); box-shadow: var(--shadow); border: 1px solid var(--line);
}
.logo-wrap {
  aspect-ratio: 1 / 1; display: grid; place-items: center;
  border-radius: 18px;
  background: linear-gradient(135deg, color-mix(in oklab, var(--accent) 18%, transparent), transparent);
  transition: background-color var(--t-slow), background var(--t-slow);
}
.mark-only { width: 70%; max-width: 320px; filter: drop-shadow(0 8px 24px rgba(0,0,0,.18)); opacity: .96; transition: opacity var(--t-fast); }
.pulse { animation: float 6s ease-in-out infinite; }
@keyframes float { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-6px)} }

/* ---------- Sections ---------- */
section { padding: 42px 0; border-top: 1px solid var(--line); transition: border-color var(--t-slow); }
h2 { font-size: clamp(1.3rem, 2.6vw, 2rem); margin: 0 0 10px; }
.sub { color: var(--muted); margin-bottom: 28px; transition: color var(--t-slow); }

.cards { display: grid; grid-template-columns: repeat(12, 1fr); gap: 18px; }
.card { grid-column: span 4; background: var(--card); border: 1px solid var(--line); border-radius: 20px; padding: 22px; box-shadow: var(--shadow); transition: transform var(--t-fast), background-color var(--t-slow), border-color var(--t-slow), box-shadow var(--t-slow); }
.card:hover { transform: translateY(-4px); }
.card h3 { margin: 0 0 8px; font-size: 1rem; }

/* ---------- About ---------- */
.about { display: grid; grid-template-columns: 1.1fr 1fr; gap: min(6vw, 48px); align-items: center; }
.quote { font-size: 1rem; border-left: 3px solid var(--fg); padding-left: 14px; color: color-mix(in oklab, var(--fg) 88%, var(--muted) 12%); transition: color var(--t-slow), border-color var(--t-slow); }

/* ---------- Contact ---------- */
.email-btn { margin-top: 10px; }

/* ---------- Footer ---------- */
footer { padding: 36px 0 20px; border-top: 1px solid var(--line); color: color-mix(in oklab, var(--fg) 70%, var(--muted) 30%); transition: color var(--t-slow), border-color var(--t-slow); }
.foot { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; align-items: center; text-align: center;}

.footer-brand { margin-top: 38px; display: grid; place-items: center; opacity: .9; transition: opacity var(--t-fast); }
.footer-logo { height: 50px; width: auto; }
.footer-logo.brand-dark { display: none; }  /* default hidden in light */
.footer-logo.brand-light { display: block; }
:root[data-theme="dark"] .footer-logo.brand-dark { display: block; }
:root[data-theme="dark"] .footer-logo.brand-light { display: none; }

/* ---------- Responsive ---------- */
@media (max-width: 920px) {
  .grid, .about { grid-template-columns: 1fr; }
  .cards .card { grid-column: span 12; }
  .navlinks a { display: none; }
  .navlinks .btn, .navlinks .btn-ghost { display: inline-flex; }
  .brand-full { height: 40px; }
  .logo-tile{
    width: 50%;
    margin: auto;
  }
}