:root {
  --bg: #f4efe2;
  --bg-alt: #ece4d1;
  --ink: #2c2620;
  --ink-soft: #6b6153;
  --accent: #7a3b2e;
  --rule: rgba(44, 38, 32, 0.14);
  --control-bg: rgba(244, 239, 226, 0.72);
  --control-border: rgba(44, 38, 32, 0.18);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #1c1a16;
    --bg-alt: #262320;
    --ink: #ece4d1;
    --ink-soft: #a89e8c;
    --accent: #d9a066;
    --rule: rgba(236, 228, 209, 0.14);
    --control-bg: rgba(28, 26, 22, 0.72);
    --control-border: rgba(236, 228, 209, 0.18);
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --bg: #1c1a16;
  --bg-alt: #262320;
  --ink: #ece4d1;
  --ink-soft: #a89e8c;
  --accent: #d9a066;
  --rule: rgba(236, 228, 209, 0.14);
  --control-bg: rgba(28, 26, 22, 0.72);
  --control-border: rgba(236, 228, 209, 0.18);
  color-scheme: dark;
}

:root[data-theme="light"] {
  --bg: #f4efe2;
  --bg-alt: #ece4d1;
  --ink: #2c2620;
  --ink-soft: #6b6153;
  --accent: #7a3b2e;
  --rule: rgba(44, 38, 32, 0.14);
  --control-bg: rgba(244, 239, 226, 0.72);
  --control-border: rgba(44, 38, 32, 0.18);
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--ink);
}

body {
  font-family: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
  overflow: hidden;
}

.top-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 1.3rem;
  z-index: 20;
  pointer-events: none;
  background: var(--bg);
  border-bottom: 1px solid var(--rule);
}

.top-bar .brand {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
  pointer-events: auto;
}

.top-bar .brand strong {
  color: var(--ink);
  font-weight: 600;
}

.icon-btn {
  pointer-events: auto;
  width: 2.35rem;
  height: 2.35rem;
  border-radius: 999px;
  border: 1px solid var(--control-border);
  background: var(--control-bg);
  backdrop-filter: blur(6px);
  color: var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.05rem;
  line-height: 1;
  transition: transform 0.15s ease, background 0.2s ease;
}

.icon-btn:hover {
  transform: translateY(-1px);
}

.icon-btn:active {
  transform: translateY(0);
}

#feed {
  height: 100%;
  overflow-y: auto;
  scroll-snap-type: y mandatory;
  scroll-behavior: smooth;
}

.card {
  min-height: 100dvh;
  width: 100%;
  scroll-snap-align: start;
  scroll-snap-stop: always;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: min(22vh, 8rem) 1.6rem 4.5rem;
}

.card-inner {
  max-width: 640px;
  width: 100%;
  margin: 0 auto;
}

.maxim-number {
  display: block;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.1rem;
}

.maxim-text {
  font-size: clamp(1.15rem, 2.6vw + 0.6rem, 1.7rem);
  line-height: 1.62;
  margin: 0;
  font-weight: 400;
}

.maxim-text .lead {
  font-style: italic;
  font-weight: 600;
}

.card-footer {
  margin-top: 2.2rem;
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.share-btn {
  border: 1px solid var(--rule);
  background: transparent;
  color: var(--ink-soft);
  font-family: inherit;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.5rem 0.9rem;
  border-radius: 999px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.share-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.hint {
  position: fixed;
  right: 1.3rem;
  bottom: 1.2rem;
  font-size: 0.68rem;
  color: var(--ink-soft);
  opacity: 0.7;
  letter-spacing: 0.04em;
  z-index: 20;
  pointer-events: none;
  background: var(--control-bg);
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  border: 1px solid var(--control-border);
  backdrop-filter: blur(6px);
  transition: opacity 0.4s ease;
}

.hint.hidden {
  opacity: 0;
}

@media (max-width: 640px) {
  .hint {
    display: none;
  }
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 3.4rem;
  transform: translateX(-50%) translateY(8px);
  background: var(--ink);
  color: var(--bg);
  font-size: 0.78rem;
  padding: 0.55rem 1rem;
  border-radius: 999px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
  z-index: 30;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.attribution {
  color: var(--ink-soft);
  font-size: 0.82rem;
  margin-top: 2.4rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--rule);
}

.attribution a {
  color: inherit;
}

#feed::-webkit-scrollbar {
  width: 0;
  display: none;
}