:root {
  --bg: #f7f1e8;
  --card: #fffdf9;
  --ink: #2b241c;
  --muted: #7d7062;
  --line: #e8dccb;
  --accent: #e08a1e;
  --accent-ink: #fff;
  --heart: #e0475b;
  --shadow: 0 1px 2px rgb(60 40 10 / 0.06), 0 6px 20px rgb(60 40 10 / 0.07);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1b1712;
    --card: #262019;
    --ink: #f3ebe0;
    --muted: #ab9d8b;
    --line: #3a3127;
    --accent: #f0a23b;
    --accent-ink: #231807;
    --heart: #ff6b7d;
    --shadow: 0 1px 2px rgb(0 0 0 / 0.3), 0 6px 20px rgb(0 0 0 / 0.25);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  padding-bottom: calc(96px + env(safe-area-inset-bottom));
}
button, input, textarea { font: inherit; color: inherit; }

.top {
  position: sticky; top: 0; z-index: 5;
  display: flex; align-items: center; justify-content: space-between;
  padding: calc(10px + env(safe-area-inset-top)) 16px 10px;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.top h1 { margin: 0; font-size: 22px; letter-spacing: 0.01em; display: flex; align-items: center; gap: 10px; }
.sun {
  width: 22px; height: 22px; border-radius: 50%;
  background: radial-gradient(circle at 40% 40%, #ffd27a, var(--accent));
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 22%, transparent);
}
.me {
  border: 1px solid var(--line); background: var(--card); border-radius: 999px;
  padding: 6px 14px; font-size: 14px; color: var(--muted); max-width: 50vw;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap; cursor: pointer;
}

#feed { max-width: 620px; margin: 0 auto; padding: 16px; display: grid; gap: 16px; }
.post { background: var(--card); border-radius: 18px; overflow: hidden; box-shadow: var(--shadow); }
.photo { display: block; width: 100%; height: auto; background: var(--line); cursor: zoom-in; max-height: 80vh; object-fit: cover; }
.body { padding: 14px 16px 12px; }
.text { margin: 0 0 6px; font-size: 17px; white-space: pre-wrap; overflow-wrap: anywhere; }
.text:empty { display: none; }
.meta { color: var(--muted); font-size: 14px; }
.meta strong { color: var(--ink); font-weight: 600; }
.actions { display: flex; align-items: center; gap: 10px; margin-top: 10px; min-height: 36px; }
.heart {
  display: inline-flex; align-items: center; gap: 6px; cursor: pointer;
  border: 1px solid var(--line); background: transparent; border-radius: 999px; padding: 5px 12px;
}
.heart .icon { color: var(--muted); font-size: 18px; line-height: 1; transition: transform 0.15s; }
.heart.on .icon { color: var(--heart); }
.heart.on { border-color: color-mix(in srgb, var(--heart) 45%, var(--line)); }
.heart:active .icon { transform: scale(1.3); }
.likers { flex: 1; color: var(--muted); font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.del { margin-left: auto; }
.del.armed { color: var(--heart); border-color: var(--heart); }

.comments { list-style: none; margin: 10px 0 0; padding: 0; display: grid; gap: 6px; }
.comments:empty { display: none; }
.comments li { font-size: 15px; overflow-wrap: anywhere; }
.comments li strong { font-weight: 600; margin-right: 6px; }
.comments li button { border: 0; background: none; color: var(--muted); cursor: pointer; font-size: 13px; padding: 0 4px; }
.commentForm { display: flex; gap: 8px; margin-top: 10px; }
.commentForm input {
  flex: 1; min-width: 0; border: 1px solid var(--line); background: var(--bg);
  border-radius: 999px; padding: 7px 14px; font-size: 15px;
}

button.primary, button.ghost {
  border-radius: 999px; padding: 9px 18px; cursor: pointer; font-weight: 600; border: 1px solid transparent;
}
button.primary { background: var(--accent); color: var(--accent-ink); }
button.primary:disabled { opacity: 0.55; cursor: default; }
button.ghost { background: transparent; border-color: var(--line); color: var(--muted); }
button.small { padding: 5px 12px; font-size: 14px; }

.status { text-align: center; color: var(--muted); margin: 8px 16px; min-height: 1.4em; }
.empty { text-align: center; color: var(--muted); padding: 48px 16px; }
.empty .big { font-size: 40px; display: block; margin-bottom: 8px; }
.more { display: block; margin: 0 auto 16px; }

.fab {
  position: fixed; right: 20px; bottom: calc(20px + env(safe-area-inset-bottom)); z-index: 6;
  width: 60px; height: 60px; border-radius: 50%; border: 0; cursor: pointer;
  background: var(--accent); color: var(--accent-ink); font-size: 34px; line-height: 1;
  box-shadow: 0 6px 18px color-mix(in srgb, var(--accent) 45%, transparent);
}

.sheet {
  position: fixed; inset: 0; z-index: 10; display: flex; align-items: flex-end; justify-content: center;
  background: rgb(20 14 6 / 0.45);
}
.sheet[hidden], .viewer[hidden] { display: none; }
.panel {
  width: 100%; max-width: 560px; background: var(--card); border-radius: 22px 22px 0 0;
  padding: 18px 16px calc(18px + env(safe-area-inset-bottom)); display: grid; gap: 12px;
  max-height: 92vh; overflow: auto;
}
@media (min-width: 600px) { .sheet { align-items: center; } .panel { border-radius: 22px; } }
.panel h2 { margin: 0; font-size: 19px; }
.hint { margin: 0; color: var(--muted); font-size: 14px; }
.panel textarea, .panel > input {
  width: 100%; border: 1px solid var(--line); background: var(--bg); border-radius: 14px; padding: 10px 12px; resize: vertical;
}
.row { display: flex; justify-content: flex-end; gap: 10px; }
.photoPick {
  position: relative; display: grid; place-items: center; min-height: 140px; cursor: pointer;
  border: 2px dashed var(--line); border-radius: 16px; color: var(--muted); overflow: hidden; text-align: center;
}
.photoPick input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.photoPick img { width: 100%; max-height: 45vh; object-fit: contain; display: block; }
.photoPick img:not([hidden]) + span {
  position: absolute; bottom: 8px; left: 50%; transform: translateX(-50%);
  background: var(--card); padding: 3px 12px; border-radius: 999px; font-size: 13px;
}

.viewer {
  position: fixed; inset: 0; z-index: 20; background: rgb(0 0 0 / 0.92);
  display: grid; place-items: center; cursor: zoom-out;
}
.viewer img { max-width: 100vw; max-height: 100vh; object-fit: contain; }