/* Brightdawn Project — portfolio styles
   One stylesheet, no external fonts, light/dark via prefers-color-scheme. */

:root {
  --bg: #fdfdfc;
  --surface: #ffffff;
  --text: #1c1b19;
  --muted: #5b5850;
  --border: #e4e1da;
  --accent: #b4531f;
  --accent-text: #ffffff;
  --focus: #1a73c2;
  --maxw: 46rem;
  --pad: clamp(1rem, 4vw, 2rem);
  --radius: 10px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial,
    sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16150f;
    --surface: #1f1e17;
    --text: #f2efe6;
    --muted: #b3ac9c;
    --border: #35332a;
    --accent: #e8853f;
    --accent-text: #1c1b19;
    --focus: #7cc0ff;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  font-size: 1.0625rem;
  -webkit-text-size-adjust: 100%;
}

h1, h2, h3 { line-height: 1.25; font-weight: 650; }
h1 { font-size: clamp(2rem, 6vw, 2.75rem); margin: 0 0 0.5rem; }
h2 { font-size: 1.5rem; margin: 0 0 1rem; }
h3 { font-size: 1.15rem; margin: 0 0 0.5rem; }

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { text-decoration: none; }

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

/* Skip link */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--surface);
  color: var(--text);
  padding: 0.6rem 1rem;
  z-index: 10;
}
.skip-link:focus { left: 0; }

/* Layout wrappers */
.site-header,
.hero,
.section,
.site-footer { padding-left: var(--pad); padding-right: var(--pad); }

.hero,
.section { max-width: var(--maxw); margin: 0 auto; }

/* Header / nav */
.site-header {
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}
.nav {
  max-width: var(--maxw);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1rem;
  padding: 0.9rem 0;
}
.nav__brand { font-weight: 650; text-decoration: none; color: var(--text); }
.nav__toggle {
  margin-left: auto;
  display: none;
  font: inherit;
  padding: 0.35rem 0.75rem;
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
}
.nav__menu {
  margin-left: auto;
  display: flex;
  gap: 1.25rem;
  list-style: none;
  padding: 0;
}
.nav__menu a { color: var(--muted); text-decoration: none; }
.nav__menu a:hover { color: var(--text); }

@media (max-width: 34rem) {
  .nav__toggle { display: block; }
  .nav__menu {
    flex-basis: 100%;
    flex-direction: column;
    gap: 0.75rem;
    margin: 0.5rem 0 0.25rem;
    display: none;
  }
  /* Shown when JS adds .nav--open; if JS never runs, .no-js keeps it visible */
  .nav--open .nav__menu { display: flex; }
  .no-js .nav__toggle { display: none; }
  .no-js .nav__menu { display: flex; }
}

/* Hero */
.hero { padding-top: clamp(2.5rem, 9vw, 5rem); padding-bottom: clamp(2rem, 7vw, 4rem); }
.hero__eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  color: var(--muted);
  margin: 0 0 0.75rem;
}
.hero__lead { font-size: 1.15rem; color: var(--muted); max-width: 38rem; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.75rem; }

.btn {
  display: inline-block;
  padding: 0.6rem 1.15rem;
  border-radius: var(--radius);
  background: var(--accent);
  color: var(--accent-text);
  text-decoration: none;
  font-weight: 600;
  border: 1px solid var(--accent);
}
.btn:hover { filter: brightness(1.06); }
.btn--ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}

/* Sections */
.section { padding-top: 2.5rem; padding-bottom: 2.5rem; border-top: 1px solid var(--border); }

.skills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
  padding: 0;
  margin: 1.25rem 0 0;
}
.skills li {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.3rem 0.8rem;
  font-size: 0.9rem;
  color: var(--muted);
}

/* Project cards */
.cards { display: grid; gap: 1rem; }
@media (min-width: 40rem) {
  .cards { grid-template-columns: repeat(2, 1fr); }
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
}
.card__desc { color: var(--muted); }
.card__meta { font-size: 0.85rem; color: var(--muted); margin: 0.75rem 0 0.5rem; }
.card__links { display: flex; gap: 1rem; margin: 0; }

/* Home: the lander with two centred buttons */
.lander {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--pad);
}
.lander__choices {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin: 0;
}
.btn--lg { padding: 1rem 2.25rem; font-size: 1.2rem; }
@media (max-width: 34rem) {
  .lander__choices { flex-direction: column; align-items: stretch; width: 100%; max-width: 20rem; }
  .btn--lg { text-align: center; }
}

/* Text for screen readers only */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Contact */
.contact-list { list-style: none; padding: 0; display: grid; gap: 0.5rem; }

/* Footer */
.site-footer {
  max-width: var(--maxw);
  margin: 0 auto;
  padding-top: 2rem;
  padding-bottom: 3rem;
  color: var(--muted);
  font-size: 0.9rem;
  border-top: 1px solid var(--border);
}

/* 404 */
.notfound { max-width: var(--maxw); margin: 0 auto; padding-top: 4rem; border-top: 0; }