:root {
  --cream: #f4efe4;
  --warm-white: #faf6ef;
  --metal-black: #111318;
  --charcoal: #1b1f26;
  --graphite: #2d313b;
  --slate: #6a707d;
  --gold: #b89b5f;
  --line: rgba(255, 255, 255, 0.28);
  --line-soft: rgba(255, 255, 255, 0.18);
  --text-main: #f9f7f2;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "SF Pro Text", "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  color: var(--text-main);
  background:
    radial-gradient(circle at 18% 20%, rgba(255, 247, 225, 0.34) 0%, rgba(255, 247, 225, 0.1) 33%, transparent 56%),
    radial-gradient(circle at 82% 12%, rgba(184, 155, 95, 0.28) 0%, transparent 35%),
    linear-gradient(155deg, #0f1115 0%, #171a20 35%, #252a33 100%);
}

.bg-grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: radial-gradient(rgba(255, 255, 255, 0.08) 0.55px, transparent 0.55px);
  background-size: 3px 3px;
  opacity: 0.16;
}

.shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 2rem;
}

.window {
  width: min(1160px, 100%);
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid var(--line-soft);
  box-shadow:
    0 28px 64px rgba(0, 0, 0, 0.48),
    inset 0 1px 0 rgba(255, 255, 255, 0.36),
    inset 0 -18px 28px rgba(0, 0, 0, 0.16);
}

.glass {
  background: linear-gradient(180deg, rgba(244, 239, 228, 0.24) 0%, rgba(17, 19, 24, 0.18) 100%), rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(24px) saturate(128%);
}

.glass-soft {
  background: rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(18px) saturate(135%);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.35);
}

.window__top {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1rem;
  padding: 0.95rem 1.2rem;
  border-bottom: 1px solid var(--line-soft);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.24), rgba(255, 255, 255, 0.08));
}

.traffic-lights {
  display: flex;
  gap: 0.5rem;
}

.light {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  box-shadow: inset 0 1px 2px rgba(255, 255, 255, 0.62), 0 1px 2px rgba(0, 0, 0, 0.45);
}

.light--red {
  background: #ff5f56;
}

.light--yellow {
  background: #ffbd2e;
}

.light--green {
  background: #27c93f;
}

.window__title {
  margin: 0;
  text-align: center;
  font-size: 0.92rem;
  font-weight: 560;
  letter-spacing: 0.02em;
  color: var(--warm-white);
}

.window__body {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 1rem;
  padding: 1rem;
}

.dock {
  padding: 0.9rem;
  display: flex;
  flex-direction: column;
  gap: 0.64rem;
}

.dock__item {
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  padding: 0.7rem 0.85rem;
  background: linear-gradient(180deg, rgba(251, 248, 240, 0.86), rgba(220, 216, 207, 0.62));
  color: var(--charcoal);
  font-weight: 620;
  letter-spacing: 0.01em;
  text-align: left;
  cursor: pointer;
  transition: transform 120ms ease, filter 120ms ease;
}

.dock__item:hover {
  filter: brightness(1.02);
  transform: translateY(-1px);
}

.dock__item.active {
  background: linear-gradient(180deg, rgba(186, 159, 99, 0.5), rgba(250, 246, 236, 0.74));
}

.content {
  display: flex;
  flex-direction: column;
  gap: 0.95rem;
}

.hero {
  padding: 2rem;
}

.eyebrow {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.72rem;
  color: #dfcfac;
}

h1 {
  margin: 0.52rem 0 0.8rem;
  font-size: clamp(1.8rem, 3vw, 2.7rem);
  line-height: 1.12;
}

.hero p {
  margin: 0;
  max-width: 66ch;
  color: rgba(250, 247, 239, 0.92);
}

.hero__actions {
  margin-top: 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.72rem;
}

.key-btn {
  justify-self: end;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 12px;
  padding: 0.45rem 0.86rem;
  background: linear-gradient(180deg, #2f3440, #1f232b);
  color: var(--warm-white);
  font-weight: 650;
  letter-spacing: 0.02em;
  box-shadow: 0 3px 0 #0f1116, 0 8px 16px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.28);
  cursor: pointer;
}

.key-btn--large {
  padding: 0.72rem 1.05rem;
}

.key-btn--ghost {
  background: linear-gradient(180deg, #3a3f4a, #2b2f37);
}

.key-btn:hover {
  filter: brightness(1.06);
}

.key-btn:active {
  transform: translateY(2px);
  box-shadow: 0 1px 0 #0f1116, 0 5px 12px rgba(0, 0, 0, 0.34), inset 0 1px 0 rgba(255, 255, 255, 0.22);
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
}

.card {
  padding: 1.1rem;
}

.card h2 {
  margin: 0;
  font-size: 1.04rem;
  color: #ecd8aa;
}

.card p {
  margin: 0.52rem 0 0;
  line-height: 1.5;
  color: rgba(250, 247, 239, 0.9);
}

@media (max-width: 900px) {
  .window__body {
    grid-template-columns: 1fr;
  }

  .dock {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .cards {
    grid-template-columns: 1fr;
  }

  .window__top {
    grid-template-columns: auto 1fr auto;
  }
}