:root {
  color-scheme: light;
  --paper: #ebe4d6;
  --ink: #221c16;
  --muted: #6f6458;
  --line: #d5cbb8;
  --card: #f7f3ea;
  --accent: #b8431f;
  --accent-ink: #fff8f3;
  --danger: #8d2b2b;
  --shadow: 0 18px 40px rgba(60, 40, 20, 0.08);
  font-family: "Segoe UI", "Hiragino Sans", "Yu Gothic UI", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(184, 67, 31, 0.08), transparent 32rem),
    var(--paper);
}

button, input { font: inherit; }

button {
  cursor: pointer;
  border: 0;
  border-radius: 999px;
  padding: 0.7rem 1.1rem;
  background: var(--ink);
  color: var(--card);
}

button.ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}

button.danger { background: var(--danger); }

button:disabled { opacity: 0.55; cursor: wait; }

.gate, .shell {
  width: min(1080px, calc(100% - 2rem));
  margin: 0 auto;
}

.gate {
  min-height: 100vh;
  display: grid;
  align-content: center;
  gap: 1.5rem;
  padding: 2rem 0 4rem;
}

.mark {
  font-family: "Yu Mincho", "Hiragino Mincho ProN", serif;
  font-size: clamp(3rem, 8vw, 5.5rem);
  line-height: 0.95;
  margin: 0;
  letter-spacing: -0.04em;
}

.lede {
  max-width: 36rem;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.7;
}

.panel {
  width: min(26rem, 100%);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 1.4rem;
  padding: 1.2rem;
  box-shadow: var(--shadow);
  display: grid;
  gap: 0.8rem;
}

label { display: grid; gap: 0.35rem; font-size: 0.92rem; }

input[type="password"] {
  border: 1px solid var(--line);
  background: white;
  border-radius: 0.8rem;
  padding: 0.8rem 0.9rem;
}

.error {
  color: var(--danger);
  min-height: 1.2rem;
  margin: 0;
}

.top {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 1rem;
  padding: 1.6rem 0 1rem;
}

.top h1 {
  font-family: "Yu Mincho", "Hiragino Mincho ProN", serif;
  font-size: 2.4rem;
  margin: 0;
}

.top p { margin: 0.2rem 0 0; color: var(--muted); }

.albums {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
}

.albums button,
.inline-form button,
.album-tools button {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
  padding: 0.45rem 0.85rem;
}

.albums button.on {
  background: var(--ink);
  color: var(--card);
  border-color: var(--ink);
}

.inline-form {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.7rem;
}

.inline-form input {
  border: 1px solid var(--line);
  background: white;
  border-radius: 999px;
  padding: 0.55rem 0.9rem;
  min-width: min(16rem, 100%);
}

.album-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.7rem;
}

.drop {
  margin-top: 1rem;
  border: 1.5px dashed #b7aa94;
  background: rgba(247, 243, 234, 0.75);
  border-radius: 1.4rem;
  padding: 1.3rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
}

.drop.hot { border-color: var(--accent); background: #fff4ec; }

.drop strong { display: block; font-size: 1.05rem; }
.drop span { color: var(--muted); }

.file {
  position: relative;
  overflow: hidden;
  background: var(--accent);
  color: var(--accent-ink);
}

.file input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.status {
  min-height: 1.4rem;
  margin: 0.8rem 0;
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.8rem;
  padding-bottom: 3rem;
}

.tile {
  margin: 0;
  padding: 0;
  border-radius: 1rem;
  overflow: hidden;
  background: #ddd4c4;
  aspect-ratio: 1;
  position: relative;
}

.tile img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.tile button {
  position: absolute;
  inset: 0;
  padding: 0;
  border-radius: 0;
  background: transparent;
  color: transparent;
}

dialog {
  width: min(920px, calc(100% - 1.5rem));
  border: 0;
  border-radius: 1.2rem;
  padding: 0.8rem;
  background: #16130f;
  color: #f6f1e8;
}

dialog::backdrop { background: rgba(28, 22, 16, 0.72); }

dialog img {
  width: 100%;
  max-height: 72vh;
  object-fit: contain;
  background: #0d0b09;
  border-radius: 0.8rem;
}

.viewer-bar {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  padding: 0.8rem 0.3rem 0.2rem;
}

.viewer-bar p { margin: 0; }
.viewer-bar small { color: #c8bbaa; }

.checks {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.9rem;
  margin: 0.15rem 0 0.2rem;
}

.checks label {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 0.35rem;
  color: #f6f1e8;
}

.checks p { margin: 0; color: #c8bbaa; }

.actions { display: flex; gap: 0.5rem; }

.empty {
  padding: 2rem 0 4rem;
  color: var(--muted);
}

@media (max-width: 640px) {
  .drop, .viewer-bar, .inline-form { flex-direction: column; align-items: stretch; }
  .top { align-items: start; }
  .inline-form input { width: 100%; }
}