:root {
  --ink: #0b0d12;
  --ink-2: #141821;
  --paper: #f3ead8;
  --paper-dim: #c9bba0;
  --gold: #e8b84a;
  --cultura: #9fd8d0;
  --curiosita: #ff6b3d;
  --like: #8eecc0;
  --danger: #ff8d8d;
  --font-body: "Atkinson Hyperlegible", "Segoe UI", sans-serif;
  --font-display: "Fraunces", Georgia, serif;
  --card-max: 430px;
  --tap: 48px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
}

body {
  min-height: 100dvh;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

.app {
  min-height: 100dvh;
  display: grid;
  grid-template-rows: auto 1fr;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: calc(0.7rem + env(safe-area-inset-top)) 1rem 0.55rem;
  background: linear-gradient(180deg, rgba(11, 13, 18, 0.92), rgba(11, 13, 18, 0));
  pointer-events: none;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.brand-mark {
  width: 1.7rem;
  height: 1.7rem;
  border-radius: 0.42rem;
  display: block;
  background: #0b0d12;
}

.topbar .icon-btn {
  pointer-events: auto;
  margin-left: auto;
}

.brand {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.15rem;
  letter-spacing: 0.04em;
}

.brand-sub {
  margin: 0;
  color: var(--paper-dim);
  font-size: 0.78rem;
}

.icon-btn,
.card__actions button,
.gate form button {
  font: inherit;
  color: var(--paper);
  background: rgba(20, 24, 33, 0.7);
  border: 1px solid rgba(232, 184, 74, 0.35);
  border-radius: 999px;
  min-height: var(--tap);
  padding: 0 1rem;
  cursor: pointer;
}

.deck {
  height: calc(100dvh - 3.2rem);
  overflow-y: auto;
  scroll-snap-type: y mandatory;
  scroll-behavior: smooth;
  outline: none;
  overscroll-behavior-y: contain;
}

.stage {
  min-height: 100%;
  scroll-snap-align: start;
  scroll-snap-stop: always;
  display: grid;
  place-items: center;
  padding: 0 0.6rem 0.6rem;
}

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  width: min(100%, var(--card-max));
  height: calc(100dvh - 4.2rem);
  max-height: 860px;
  overflow: hidden;
  border-radius: 22px;
  isolation: isolate;
  background: var(--ink-2);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}

.card__track {
  display: flex;
  flex: 1;
  min-height: 0;
  height: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  scrollbar-width: none;
  overscroll-behavior-x: contain;
  -webkit-overflow-scrolling: touch;
}

.card__track::-webkit-scrollbar {
  display: none;
}

.slide {
  flex: 0 0 100%;
  width: 100%;
  height: 100%;
  scroll-snap-align: start;
  scroll-snap-stop: always;
  display: flex;
  flex-direction: column;
  background: var(--ink);
}

.slide__media {
  flex: 0 0 42%;
  min-height: 0;
  background: #151922 center 28%/cover no-repeat;
  box-shadow: inset 0 -28px 36px rgba(11, 13, 18, 0.55);
}

.slide[data-kind="beat"] .slide__media,
.slide[data-kind="close"] .slide__media {
  flex: 0 0 28%;
}

.slide__band {
  flex: 1;
  min-height: 0;
  overflow: auto;
  padding: 1.05rem 1.15rem calc(5.6rem + env(safe-area-inset-bottom));
  padding-right: calc(1.15rem + var(--tap) + 0.55rem);
  background: var(--ink);
}

.slide--text {
  background:
    radial-gradient(ellipse at 12% -10%, rgba(232, 184, 74, 0.1), transparent 46%),
    var(--ink);
}

.slide--text .slide__band {
  display: flex;
  flex-direction: column;
  padding-top: 1.35rem;
}

.card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  flex-shrink: 0;
}

.lane {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.28rem 0.7rem;
  border-radius: 999px;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid transparent;
}

.card--cultura .lane {
  color: var(--cultura);
  border-color: rgba(159, 216, 208, 0.45);
  background: rgba(159, 216, 208, 0.08);
}

.card--curiosita .lane {
  color: var(--ink);
  background: var(--curiosita);
  border-color: var(--curiosita);
  transform: rotate(-2deg);
  font-weight: 700;
}

.source {
  color: var(--paper);
  font-size: 0.78rem;
  text-decoration: none;
  padding: 0.28rem 0.7rem;
  border-radius: 999px;
  background: rgba(243, 234, 216, 0.1);
  border: 1px solid rgba(243, 234, 216, 0.16);
}

.source--cta {
  align-self: flex-start;
  margin-top: 0.9rem;
  border-color: rgba(232, 184, 74, 0.45);
  color: var(--gold);
}

.card h1 {
  margin: 0 0 0.55rem;
  font-family: var(--font-display);
  font-size: clamp(1.42rem, 5.6vw, 2.05rem);
  font-weight: 650;
  line-height: 1.15;
}

.beat-kicker {
  margin: 0 0 0.45rem;
  color: var(--gold);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.lede,
.slide__band > p {
  margin: 0;
  font-size: 1.08rem;
  line-height: 1.48;
  color: #efe6d2;
}

.slide[data-kind="beat"] .slide__band > p,
.slide[data-kind="close"] .slide__band > p {
  font-size: 1.1rem;
}

.slide--photo .lede {
  font-size: 1.02rem;
}

.takeaway {
  margin: 0;
  padding: 1rem 1.05rem;
  border-left: 3px solid var(--gold);
  background: rgba(20, 24, 33, 0.9);
  border-radius: 0 12px 12px 0;
  font-size: 1.12rem;
  line-height: 1.42;
}

.takeaway span {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--gold);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.card__actions {
  position: absolute;
  right: 0.7rem;
  bottom: calc(1.1rem + env(safe-area-inset-bottom));
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.card__actions button {
  width: var(--tap);
  min-width: var(--tap);
  padding: 0;
  font-size: 1.05rem;
}

.card__actions button[aria-pressed="true"] {
  background: var(--gold);
  color: var(--ink);
}

.card__actions button.is-no {
  border-color: rgba(255, 141, 141, 0.5);
}

.card__actions button.is-no[aria-pressed="true"] {
  background: var(--danger);
  color: var(--ink);
}

.card__progress {
  position: absolute;
  left: 1.15rem;
  bottom: calc(1.2rem + env(safe-area-inset-bottom));
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0;
  pointer-events: none;
}

.dots {
  display: flex;
  gap: 0.32rem;
  pointer-events: auto;
}

.dot {
  width: 7px;
  height: 7px;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: rgba(243, 234, 216, 0.28);
  cursor: pointer;
}

.dot.is-on {
  background: var(--gold);
  width: 16px;
}

.card__count {
  color: var(--paper-dim);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
}

.hint {
  position: absolute;
  left: 1.15rem;
  bottom: calc(2.35rem + env(safe-area-inset-bottom));
  z-index: 2;
  margin: 0;
  color: var(--paper-dim);
  font-size: 0.75rem;
}

.gate {
  min-height: calc(100dvh - 3rem);
  display: grid;
  place-items: center;
  padding: 1.5rem;
}

.gate__card {
  width: min(100%, 22rem);
}

.gate__mark {
  display: block;
  width: 3rem;
  height: 3rem;
  border-radius: 0.75rem;
  margin-bottom: 1rem;
}

.gate h1 {
  font-family: var(--font-display);
  margin: 0.2rem 0 0.6rem;
}

.gate__kicker {
  margin: 0;
  color: var(--gold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.75rem;
}

.gate form {
  display: grid;
  gap: 0.7rem;
  margin-top: 1rem;
}

.gate input {
  font: inherit;
  padding: 0.85rem 0.9rem;
  border-radius: 12px;
  border: 1px solid rgba(243, 234, 216, 0.2);
  background: var(--ink-2);
  color: var(--paper);
}

.gate__error { color: var(--danger); }

.status {
  position: fixed;
  left: 50%;
  bottom: 1rem;
  transform: translateX(-50%);
  margin: 0;
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  background: rgba(20, 24, 33, 0.9);
  font-size: 0.8rem;
}

.empty {
  padding: 3rem 1.5rem;
  text-align: center;
  color: var(--paper-dim);
}

@media (min-width: 880px) {
  .deck {
    background:
      radial-gradient(circle at 20% 10%, rgba(232, 184, 74, 0.08), transparent 28%),
      var(--ink);
  }

  .card {
    height: min(86dvh, 820px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .deck,
  .card__track { scroll-behavior: auto; }
}