/* =========================================================
   Daybreak — "Soft Sunrise OS"
   Case-study page for the Rasveda Labs portfolio
   ========================================================= */

:root {
  --db-bg:        #fbf4e8;   /* cream sunrise */
  --db-bg-tint:   #f6ead6;   /* warmer band   */
  --db-card:      rgba(255, 252, 246, 0.66);
  --db-line:      rgba(120, 84, 48, 0.16);

  --db-ink:       #2e2620;   /* deep warm brown */
  --db-ink-soft:  #6b5d4d;
  --db-ink-dim:   #9a8b78;

  --db-accent:    #c8763c;   /* terracotta sunrise */
  --db-accent-2:  #e2a065;   /* light ray          */

  --db-radius:    20px;
  --db-maxw:      940px;

  --db-serif:  "Playfair Display", Georgia, "Times New Roman", serif;
  --db-serif2: "Cormorant Garamond", Georgia, serif;
  --db-sans:   "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --db-ease:   cubic-bezier(0.22, 1, 0.36, 1);
}

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

body {
  margin: 0;
  font-family: var(--db-sans);
  color: var(--db-ink);
  background: var(--db-bg);
  /* almost-invisible grain */
  background-image:
    radial-gradient(120% 90% at 50% -10%, rgba(226, 160, 101, 0.18), transparent 60%),
    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'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.035'/%3E%3C/svg%3E");
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

.skip-link {
  position: absolute; left: -999px; top: 0;
}
.skip-link:focus {
  position: fixed; left: 12px; top: 12px;
  background: var(--db-accent); color: #fff;
  padding: 10px 16px; border-radius: 10px; z-index: 100;
}

.db-container {
  width: 100%;
  max-width: var(--db-maxw);
  margin-inline: auto;
  padding-inline: clamp(20px, 5vw, 40px);
}

/* ---------- Topbar ---------- */
.db-topbar {
  position: sticky; top: 0; z-index: 20;
  backdrop-filter: blur(10px);
  background: rgba(251, 244, 232, 0.72);
  border-bottom: 1px solid var(--db-line);
}
.db-topbar__inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 60px;
}
.db-back {
  font-weight: 600; font-size: 0.95rem; color: var(--db-ink);
  display: inline-flex; align-items: center; gap: 0.45em;
  transition: color 0.2s var(--db-ease);
}
.db-back:hover { color: var(--db-accent); }
.db-topbar__tag {
  font-size: 0.72rem; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--db-ink-dim);
}

/* ---------- Hero ---------- */
.db-hero { padding: clamp(2.5rem, 7vw, 5rem) 0 clamp(2.5rem, 6vw, 4rem); }
.db-hero__inner { text-align: center; }
.db-hero__logo {
  width: clamp(220px, 40vw, 340px); height: auto;
  margin: 0 auto clamp(1rem, 3vw, 2rem);
  mix-blend-mode: multiply;   /* melt the cream logo bg into the page */
}
.db-eyebrow {
  font-size: 0.78rem; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--db-accent); font-weight: 600; margin: 0 0 1rem;
}
.db-hero__title {
  font-family: var(--db-serif);
  font-weight: 600;
  font-size: clamp(2.8rem, 8vw, 5rem);
  line-height: 1.02; letter-spacing: -0.01em;
  margin: 0 0 1.25rem;
}
.db-hero__lead {
  font-family: var(--db-serif2);
  font-size: clamp(1.25rem, 3vw, 1.7rem);
  line-height: 1.5; color: var(--db-ink-soft);
  max-width: 34ch; margin: 0 auto;
}

/* ---------- Meta ---------- */
.db-meta {
  display: flex; flex-wrap: wrap; justify-content: center;
  gap: clamp(1.5rem, 5vw, 3.5rem);
  margin: clamp(2.5rem, 5vw, 3.5rem) 0 0;
  padding-top: 2rem;
  border-top: 1px solid var(--db-line);
}
.db-meta div { margin: 0; max-width: 22ch; }
.db-meta dt {
  font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--db-ink-dim); margin-bottom: 0.35rem;
}
.db-meta dd { margin: 0; font-weight: 500; color: var(--db-ink); }

/* ---------- Sections ---------- */
.db-section { padding: clamp(3rem, 8vw, 5.5rem) 0; }
.db-section--tint {
  background: var(--db-bg-tint);
  border-block: 1px solid var(--db-line);
}
.db-prose { max-width: 680px; margin-inline: auto; }
.db-kicker {
  display: inline-block;
  font-size: 0.75rem; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--db-accent); font-weight: 600; margin-bottom: 0.9rem;
}
.db-h2 {
  font-family: var(--db-serif);
  font-weight: 500;
  font-size: clamp(1.9rem, 4.6vw, 2.9rem);
  line-height: 1.1; letter-spacing: -0.01em;
  margin: 0 0 1.25rem;
}
.db-prose p {
  font-family: var(--db-serif2);
  font-size: clamp(1.15rem, 2.4vw, 1.4rem);
  line-height: 1.6; color: var(--db-ink-soft);
  margin: 0 0 1.1rem;
}
.db-prose p em { color: var(--db-accent); font-style: italic; }
.db-prose code {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 0.86em; background: rgba(200, 118, 60, 0.12);
  color: var(--db-accent); padding: 0.1em 0.4em; border-radius: 6px;
}

/* ---------- Feature cards ---------- */
.db-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.1rem;
  margin-top: clamp(2rem, 4vw, 3rem);
}
.db-card {
  background: var(--db-card);
  border: 1px solid var(--db-line);
  border-radius: var(--db-radius);
  padding: 1.6rem 1.5rem;
  backdrop-filter: blur(6px);
  transition: transform 0.35s var(--db-ease), box-shadow 0.35s var(--db-ease);
}
.db-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 40px -24px rgba(120, 70, 30, 0.5);
}
.db-card h3 {
  font-family: var(--db-serif);
  font-weight: 500; font-size: 1.3rem;
  margin: 0 0 0.6rem;
}
.db-card p {
  margin: 0; color: var(--db-ink-soft); font-size: 1rem; line-height: 1.6;
}

/* ---------- Chips / tokens ---------- */
.db-chips, .db-stack {
  list-style: none; padding: 0; margin: 1.75rem 0 0;
  display: flex; flex-wrap: wrap; gap: 0.6rem;
}
.db-chips li, .db-stack span {
  font-family: var(--db-sans);
  font-size: 0.85rem; font-weight: 500;
  padding: 0.45em 0.95em;
  border: 1px solid var(--db-line);
  border-radius: 999px;
  background: var(--db-card);
  color: var(--db-ink-soft);
}

/* ---------- Roadmap ---------- */
.db-roadmap {
  margin: 0.5rem 0 0; padding: 0; list-style: none;
  font-family: var(--db-serif2);
  font-size: clamp(1.15rem, 2.4vw, 1.4rem);
  color: var(--db-ink-soft);
}
.db-roadmap li {
  position: relative; padding-left: 1.6em; margin-bottom: 0.6rem;
}
.db-roadmap li::before {
  content: "☀"; position: absolute; left: 0; top: 0;
  color: var(--db-accent); font-size: 0.85em;
}

/* ---------- CTA ---------- */
.db-cta {
  text-align: center;
  padding: clamp(4rem, 9vw, 6.5rem) 0;
  background:
    radial-gradient(90% 120% at 50% 120%, rgba(226, 160, 101, 0.35), transparent 60%),
    var(--db-bg);
}
.db-cta__mark { font-size: 2rem; color: var(--db-accent); margin: 0 0 0.5rem; }
.db-cta__title {
  font-family: var(--db-serif);
  font-weight: 500; font-style: italic;
  font-size: clamp(2rem, 5vw, 3.2rem);
  margin: 0 0 0.9rem;
}
.db-cta__lead { font-family: var(--db-serif2); color: var(--db-ink-soft); font-size: 1.2rem; margin: 0 0 2rem; }
.db-btn {
  display: inline-flex; align-items: center; gap: 0.5em;
  padding: 0.85em 1.6em; border-radius: 999px;
  font-weight: 600; font-family: var(--db-sans);
  color: #fff;
  background: linear-gradient(135deg, var(--db-accent), var(--db-accent-2));
  box-shadow: 0 10px 30px -12px rgba(200, 118, 60, 0.7);
  transition: transform 0.25s var(--db-ease), box-shadow 0.25s var(--db-ease);
}
.db-btn:hover { transform: translateY(-2px); box-shadow: 0 16px 40px -12px rgba(200, 118, 60, 0.8); }
.db-btn__badge {
  font-size: 0.62rem; font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; line-height: 1;
  padding: 0.32em 0.55em; border-radius: 999px;
  background: rgba(255, 255, 255, 0.28); color: #fff;
}
.db-btn-ghost {
  display: inline-flex; align-items: center; gap: 0.5em;
  padding: 0.85em 1.6em; border-radius: 999px;
  font-weight: 600; font-family: var(--db-sans);
  color: var(--db-ink); border: 1px solid var(--db-line); background: var(--db-card);
  transition: border-color 0.25s var(--db-ease), color 0.25s var(--db-ease);
}
.db-btn-ghost:hover { border-color: var(--db-accent); color: var(--db-accent); }
.db-hero__actions, .db-cta__actions {
  display: flex; flex-wrap: wrap; gap: 0.8rem; justify-content: center;
}
.db-hero__actions { margin: 1.9rem 0 0; }

/* ---------- Footer ---------- */
.db-footer {
  border-top: 1px solid var(--db-line);
  padding: 2.5rem 0;
  background: var(--db-bg);
}
.db-footer__inner {
  display: flex; flex-wrap: wrap; gap: 0.75rem;
  justify-content: space-between; align-items: center;
  color: var(--db-ink-dim); font-size: 0.9rem;
}
.db-footer__inner p { margin: 0; }
.db-footer a { color: var(--db-accent); font-weight: 600; }
.db-footer a:hover { text-decoration: underline; }

/* ---------- Reveal ---------- */
.reveal {
  opacity: 0; transform: translateY(20px);
  transition: opacity 0.7s var(--db-ease), transform 0.7s var(--db-ease);
}
.reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 560px) {
  .db-meta { gap: 1.5rem; }
  .db-meta div { max-width: none; }
}