/* ===========================================================
   srimpz.com — landing / services hub
   Phong cach toi gian, sang (co them dark mode tu dong).
   =========================================================== */

:root {
  --bg: #f7f7f5;
  --fg: #111114;
  --muted: #6b6b73;
  --line: #e5e5e1;
  --card: #ffffff;
  --accent: #4f46e5;
  --accent-soft: rgba(79, 70, 229, 0.08);
  --term: #16a34a;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "JetBrains Mono", "Cascadia Code", Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c0c0e;
    --fg: #f2f2f4;
    --muted: #9a9aa4;
    --line: #232327;
    --card: #141417;
    --accent: #8b87ff;
    --accent-soft: rgba(139, 135, 255, 0.12);
    --term: #4ade80;
  }
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { -webkit-text-size-adjust: 100%; }

body {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  /* quang nhe sau wordmark */
  background-image: radial-gradient(60% 50% at 50% 38%, var(--accent-soft), transparent 70%);
}

/* ---------- Top bar ---------- */
.topbar {
  position: fixed;
  inset: 0 0 auto 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 1.3rem;
  font-family: var(--mono);
  font-size: 0.74rem;
  z-index: 10;
}
.status { display: inline-flex; align-items: center; gap: 0.45rem; color: var(--muted); }
.dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--term);
  box-shadow: 0 0 0 0 var(--term);
  animation: pulse 2.4s ease-out infinite;
}
.lang-toggle {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--fg);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.34rem 0.74rem;
  cursor: pointer;
  transition: border-color 0.18s ease, color 0.18s ease, background 0.18s ease;
}
.lang-toggle:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }

/* ---------- Hero ---------- */
.hero {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 5.5rem 1.3rem 2rem;
}
.eyebrow {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.7rem;
}
.wordmark {
  font-size: clamp(3.5rem, 16vw, 11rem);
  font-weight: 800;
  letter-spacing: -0.045em;
  line-height: 0.9;
  background: linear-gradient(180deg, var(--fg), color-mix(in srgb, var(--fg) 62%, var(--muted)));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.tagline {
  margin-top: 1.1rem;
  max-width: 34ch;
  color: var(--muted);
  font-size: clamp(0.95rem, 2.4vw, 1.05rem);
}

/* ---------- Services ---------- */
.services {
  width: min(520px, 90vw);
  margin-top: 2.6rem;
  display: grid;
  gap: 0.6rem;
}
.card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.15rem;
  text-align: left;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  color: var(--fg);
  text-decoration: none;
  transition: border-color 0.18s ease, background 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease;
}
.card-title { font-weight: 600; font-size: 1rem; }
.card-desc { display: block; margin-top: 0.15rem; font-size: 0.85rem; color: var(--muted); }
.card-arrow { color: var(--muted); font-size: 1.1rem; transition: transform 0.18s ease, color 0.18s ease; }

a.card:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px -14px rgba(0, 0, 0, 0.4);
}
a.card:hover .card-arrow { transform: translateX(3px) translateY(-3px); color: var(--accent); }

.card--soon {
  opacity: 0.5;
  border-style: dashed;
  cursor: default;
}

/* ---------- Contact ---------- */
.contact {
  margin-top: 1.9rem;
  display: flex;
  gap: 0.8rem;
  justify-content: center;
}
.contact a {
  width: 40px; height: 40px;
  display: grid; place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--muted);
  transition: color 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}
.contact a:hover { color: var(--accent); border-color: var(--accent); transform: translateY(-2px); }

/* ---------- Footer ---------- */
.footer {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  padding: 1.6rem 1.3rem 2rem;
  text-align: center;
}
.vibe {
  font-family: var(--mono);
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  color: var(--fg);
}
.caret { color: var(--term); margin-left: 1px; animation: blink 1.05s steps(1) infinite; }
.copy { font-family: var(--mono); font-size: 0.72rem; color: var(--muted); }

/* ---------- Animations ---------- */
@keyframes blink { 0%, 50% { opacity: 1; } 50.01%, 100% { opacity: 0; } }
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--term) 60%, transparent); }
  70% { box-shadow: 0 0 0 7px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}

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