/* ── StefanAtanasov.dev - Horizontal Timeline ── */

:root {
  --paper: #F9F6F0;
  --text: #2D2923;
  --text-muted: #787165;
  --accent: #B0714C;
  --accent-hover: #C4855E;
  --line: #DED8CE;
}

*, *::before, *::after { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--paper);
  color: var(--text);
  font-family: "DM Sans", sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

.skip-link {
  position: fixed; top: -100%; left: 1rem; z-index: 100;
  padding: 0.5rem 1rem; border-radius: 6px;
  background: var(--accent); color: #fff;
  font-weight: 700; font-size: 0.82rem; text-decoration: none;
}
.skip-link:focus { top: 0.5rem; }

/* ── Timeline track ── */
.timeline-track {
  display: flex;
  height: 100vh;
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.timeline-track::-webkit-scrollbar { display: none; }

/* ── Slides ── */
.slide {
  flex: 0 0 100vw;
  scroll-snap-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem 2rem 8rem;
  position: relative;
  text-align: center;
}

/* ── The line ── */
.timeline-track::before {
  content: "";
  position: fixed;
  bottom: 5rem;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--line);
  z-index: 2;
  pointer-events: none;
}

/* ── Dots ── */
.slide::after {
  content: "";
  position: absolute;
  bottom: calc(5rem - 0.4rem);
  left: 50%;
  transform: translateX(-50%);
  width: 0.8rem; height: 0.8rem;
  border-radius: 50%;
  background: var(--line);
  border: 2px solid var(--line);
  z-index: 3;
  transition: background 300ms ease, border-color 300ms ease, transform 300ms ease;
}
.slide.active::after {
  background: var(--accent);
  border-color: var(--accent);
  transform: translateX(-50%) scale(1.4);
}

.slide-label {
  position: absolute; bottom: 6rem; left: 0; width: 100%;
  text-align: center;
  font-size: 0.65rem; font-weight: 700;
  letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--text-muted); z-index: 3;
}
.slide.active .slide-label { color: var(--accent); }

/* ── Content ── */
.slide-content { max-width: 560px; }
.slide-content h1 {
  font-family: "DM Serif Display", serif;
  font-weight: 400; font-size: clamp(2.4rem, 6vw, 4.8rem);
  line-height: 1.06; letter-spacing: -0.03em; margin: 0 0 1rem;
}
.slide-content h2 {
  font-family: "DM Serif Display", serif;
  font-weight: 400; font-size: clamp(2rem, 5vw, 3.6rem);
  line-height: 1.08; letter-spacing: -0.03em; margin: 0 0 0.8rem;
}
.slide-content p { margin: 0 0 0.6rem; color: var(--text-muted); font-size: 1rem; line-height: 1.6; }
.slide-content .eyebrow {
  font-size: 0.68rem; font-weight: 700; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--accent); margin-bottom: 0.6rem;
}
.slide-content ul { list-style: none; padding: 0; margin: 1rem 0 0; text-align: left; display: inline-block; }
.slide-content li { font-size: 0.9rem; color: var(--text-muted); padding: 0.3rem 0; padding-left: 1rem; position: relative; }
.slide-content li::before { content: "-"; position: absolute; left: 0; color: var(--accent); }

/* ── Hero ── */
.slide-hero .brand-mark { width: 1rem; height: 1rem; border-radius: 50%; background: var(--accent); display: inline-block; margin-bottom: 1rem; }
.slide-hero .brand-name { font-size: 0.8rem; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 1.5rem; }

/* ── Lang toggle ── */
.lang-bar { position: fixed; top: 1rem; right: 1.5rem; z-index: 10; font-size: 0.78rem; font-weight: 600; color: var(--accent); letter-spacing: 0.03em; }
.lang-bar:hover { color: var(--accent-hover); }

/* ── Dot nav ── */
.dot-nav { position: fixed; bottom: 3.5rem; left: 0; width: 100%; display: flex; justify-content: center; gap: 1.5rem; z-index: 4; pointer-events: none; }
.dot-nav button { width: 0.6rem; height: 0.6rem; border-radius: 50%; border: none; background: var(--line); cursor: pointer; pointer-events: auto; padding: 0; transition: background 300ms ease, transform 300ms ease; }
.dot-nav button.active { background: var(--accent); transform: scale(1.5); }

/* ── CTA ── */
.slide-cta .button { display: inline-flex; align-items: center; justify-content: center; min-height: 3rem; padding: 0.75rem 1.5rem; border-radius: 6px; border: none; font-weight: 600; font-size: 0.92rem; background: var(--accent); color: #fff; margin-top: 1.5rem; }
.slide-cta .button:hover { background: var(--accent-hover); }

/* ── Hint ── */
.scroll-hint { position: fixed; bottom: 7rem; left: 50%; transform: translateX(-50%); display: inline-flex; align-items: center; gap: 0.55rem; font-size: 0.7rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--text-muted); z-index: 3; opacity: 0; pointer-events: none; transition: opacity 600ms ease; }
.scroll-hint.visible { opacity: 1; }
.scroll-hint-arrow { display: inline-block; font-size: 0.95rem; line-height: 1; color: var(--accent); animation: hint-slide-right 1.4s ease-in-out infinite; }
@keyframes hint-slide-right { 0%, 100% { transform: translateX(0); } 50% { transform: translateX(0.35rem); } }

@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important; } }

@media (max-width: 640px) { .slide { padding: 2rem 1.5rem 7rem; } h1 { font-size: clamp(2rem, 7vw, 2.8rem); } h2 { font-size: clamp(1.6rem, 5vw, 2.4rem); } .dot-nav { gap: 1rem; } }