/* ==========================================================
   Home intro: ASCII loader + name screen
   ========================================================== */

/* Respira is in media/fonts. */
@font-face {
  font-family: "Respira";
  src: url("../media/fonts/Respira-Black.otf") format("opentype");
  font-weight: 900;
  font-display: block;
}

/* Roboto is in media/fonts (one file covers every weight). */
@font-face {
  font-family: "Roboto";
  src: url("../media/fonts/Roboto-VariableFont_wdth,wght.ttf") format("truetype");
  font-weight: 100 900;
  font-display: swap;
}

/* Case study titles use Publico Text Bold (media/fonts). */
@font-face {
  font-family: "Publico Text";
  src: url("../media/fonts/PublicoTextWeb-Bold.ttf") format("truetype");
  font-weight: 700;
  font-display: swap;
}

/* Other headings use Publico Banner Regular (media/fonts). */
@font-face {
  font-family: "Publico Banner";
  src: url("../media/fonts/Publico%20Banner%20Web%20Roman%20Regular.ttf") format("truetype");
  font-weight: 400;
  font-display: swap;
}

:root {
  --bg: #000;
  --fg: #fff;
  --font-name: "Respira", "UnifrakturMaguntia", serif;
  --font-text: "Publico Banner", Georgia, "Times New Roman", serif;
  --font-bold: "Publico Text", Georgia, "Times New Roman", serif;
  /* Side margin on every page: 80px on desktop, scaling down to 20px on phones. */
  --margin: clamp(20px, 12vw - 36px, 160px);
  /* Corner rounding for every image and card on the site. */
  --radius: 20px;
}
:root[data-theme="light"] {
  --bg: #fff;
  --fg: #000;
}

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-text);
  -webkit-font-smoothing: antialiased;
  transition: background-color .4s ease, color .4s ease;
}

/* ---------- Name screen ---------- */
.intro {
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0 5vw;
  text-align: center;
  transition: opacity .9s ease;
}
.intro-name {
  margin: 0;
  font-family: var(--font-name);
  font-weight: 900;
  font-size: 15vw;          /* refined by intro.js to fill the width */
  line-height: 1;
  white-space: nowrap;
}
.intro-tagline {
  margin: .9em 0 0;
  font-family: var(--font-bold);
  font-weight: 700;
  font-size: 3.6vw;          /* refined by intro.js */
  line-height: 1.2;
}
.intro-name span { display: inline-block; }   /* so home.js can move it into the nav */
.intro-tagline span { display: inline; }

/* Hidden while the ASCII plays, then fades in. No scrolling until it's done. */
.is-loading { overflow: hidden; }
.is-loading .intro { opacity: 0; }

/* ---------- ASCII canvas ---------- */
.ascii {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  transition: opacity .9s ease;
}
.is-revealing .ascii { opacity: 0; }

/* ---------- Light / dark toggle ---------- */
.theme-toggle {
  flex: none;
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 0;
  background: none;
  color: var(--fg);
  cursor: pointer;
  border-radius: 50%;
  transition: opacity .3s ease, transform .3s ease;
}
.theme-toggle:hover { transform: rotate(-15deg); }
.theme-toggle:focus-visible { outline: 2px solid var(--fg); outline-offset: 2px; }
.theme-toggle svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.icon-sun { display: none; }
:root[data-theme="light"] .icon-sun { display: block; }
:root[data-theme="light"] .icon-moon { display: none; }

/* ---------- Small screens ---------- */
@media (max-width: 700px) {
  .intro { padding: 0 16px; }
  .intro-tagline { max-width: 22em; }
}

@media (prefers-reduced-motion: reduce) {
  .intro, .ascii, body { transition: none; }
}