:root {
  --canvas: #23272d;
  --ink: #e8e9eb;
  --title: #ffffff;
  --muted: #8b8f94;
  --line: #5d6166;
  --trigger: #f1fe06;
  --trigger-ink: #23272d;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: var(--canvas);
  color: var(--ink);
  font-family: "DM Sans", sans-serif;
  font-size: 16px;
  line-height: 1.45;
}

body {
  max-width: 920px;
  margin: 0 auto;
  padding: 40px 28px 56px;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  color: var(--title);
  font-size: clamp(40px, 7vw, 56px);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  line-height: 0.95;
}

h2 {
  color: var(--title);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.label {
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.muted {
  color: var(--muted);
}

.mast {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
  animation: rise 520ms var(--ease) both;
}

.mast-brand .label {
  margin-bottom: 10px;
}

.mast-brand .mission {
  margin-top: 12px;
  color: var(--ink);
  font-size: 15px;
  max-width: 36ch;
}

.docref {
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-align: right;
}

main {
  display: grid;
  gap: 0;
}

.panel,
.products {
  border-bottom: 1px solid var(--line);
}

.panel {
  padding: 28px 0;
  display: grid;
  gap: 12px;
  justify-items: start;
  animation: rise 560ms var(--ease) 80ms both;
}

.panel.is-signed-in {
  box-shadow: inset 3px 0 0 var(--trigger);
  padding-left: 16px;
}

#session-status {
  color: var(--title);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}

button,
.open {
  appearance: none;
  border: 1px solid var(--trigger);
  background: var(--trigger);
  color: var(--trigger-ink);
  font: 600 13px/1 "DM Sans", sans-serif;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 12px 18px;
  border-radius: 0;
  cursor: pointer;
  transition: background 160ms var(--ease), color 160ms var(--ease),
    border-color 160ms var(--ease), transform 120ms var(--ease);
}

button:hover:not(:disabled),
.open:hover {
  filter: brightness(1.04);
}

button:active:not(:disabled),
.open:active {
  transform: translateY(1px);
}

button:disabled {
  border-color: var(--line);
  background: transparent;
  color: var(--muted);
  cursor: not-allowed;
  filter: none;
}

#sign-out {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}

#sign-out:hover {
  border-color: var(--ink);
  filter: none;
}

.products-head {
  padding-top: 28px;
  padding-bottom: 4px;
  animation: rise 600ms var(--ease) 120ms both;
}

.products {
  list-style: none;
  margin: 0;
  padding: 0;
}

.product {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 20px;
  align-items: center;
  padding: 22px 0;
  border-top: 1px solid var(--line);
  animation: rise 640ms var(--ease) both;
  animation-delay: calc(160ms + var(--i, 0) * 70ms);
  transition: padding-left 180ms var(--ease), box-shadow 180ms var(--ease);
}

.product:hover {
  padding-left: 12px;
  box-shadow: inset 3px 0 0 var(--trigger);
}

.product h2 + .label {
  margin-top: 8px;
}

.product .muted {
  margin-top: 8px;
  max-width: 48ch;
  font-size: 14px;
}

.open {
  background: transparent;
  color: var(--trigger);
}

.open:hover {
  background: var(--trigger);
  color: var(--trigger-ink);
  filter: none;
}

footer {
  padding-top: 20px;
  color: var(--muted);
  font-size: 13px;
  animation: rise 680ms var(--ease) 200ms both;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .mast,
  .panel,
  .products-head,
  .product,
  footer {
    animation: none;
  }

  button,
  .open,
  .product {
    transition: none;
  }

  .product:hover {
    padding-left: 0;
  }
}

@media (max-width: 640px) {
  body {
    padding: 24px 16px 40px;
  }

  .mast {
    flex-direction: column;
    align-items: flex-start;
  }

  .docref {
    text-align: left;
  }

  h1 {
    font-size: 36px;
  }

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

  .open {
    justify-self: start;
  }
}