:root {
  --paper: #fffaf3;
  --paper-warm: #fff6ec;
  --ink: #59473f;
  --ink-soft: #6f5d55;
  --peach: #ef9990;
  --peach-ink: #bf504b;
  --gold-ink: #7d5b2c;
  --line: rgba(215, 117, 112, .28);
  --sans: "Be Vietnam Pro", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--paper-warm);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.6;
}

h1, h2 { margin: 0; font-weight: 600; }
h1 { font-size: 1.35rem; }
h2 { font-size: 1.05rem; }
.muted { color: var(--ink-soft); font-weight: 400; font-size: .85rem; }
.error { margin: 0; color: var(--peach-ink); font-size: .85rem; min-height: 1.2em; }
.empty { margin: 1rem 0 0; color: var(--ink-soft); }
code { background: rgba(215, 117, 112, .12); padding: .1em .35em; border-radius: 4px; font-size: .9em; }

/* --- đăng nhập --- */
.gate { min-height: 100dvh; display: grid; place-items: center; padding: 1.25rem; }
.gate-card { width: min(380px, 100%); display: grid; gap: .9rem; }

/* --- khung chung --- */
.topbar {
  position: sticky; top: 0; z-index: 5;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: .85rem clamp(1rem, 4vw, 2rem);
  background: rgba(255, 250, 243, .93);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}
.topbar-actions { display: flex; gap: .5rem; }
main { padding: clamp(1rem, 3vw, 2rem); display: grid; gap: 1.1rem; max-width: 1100px; margin: 0 auto; }

.card {
  padding: clamp(1rem, 3vw, 1.5rem);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 12px;
}
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; margin-bottom: .9rem; }

/* --- thống kê --- */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: .75rem; }
.stat {
  padding: .9rem 1rem;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 12px;
}
.stat b { display: block; font-size: 1.6rem; font-weight: 600; line-height: 1.2; color: var(--peach-ink); }
.stat span { color: var(--ink-soft); font-size: .8rem; letter-spacing: .04em; text-transform: uppercase; }

/* --- form --- */
label { display: grid; gap: .3rem; font-size: .8rem; font-weight: 500; color: var(--ink-soft); }
input, textarea, select {
  width: 100%;
  padding: .6rem .7rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  font: inherit;
  font-size: 16px; /* tránh iOS tự zoom khi focus */
}
input:focus, textarea:focus { outline: 2px solid var(--peach-ink); outline-offset: 1px; border-color: transparent; }
textarea { resize: vertical; }

.row { display: flex; gap: .75rem; align-items: end; flex-wrap: wrap; }
.row .grow-1 { flex: 1 1 130px; }
.row .grow-2 { flex: 2 1 180px; }
.row-tight { display: flex; gap: .5rem; align-items: center; flex-wrap: wrap; }
/* input mặc định width:100% sẽ đẩy nút xuống dòng trong thanh công cụ */
.row-tight input { width: auto; min-width: 190px; }

.btn {
  min-height: 42px;
  padding: .55rem 1.1rem;
  border: 1px solid var(--peach-ink);
  border-radius: 999px;
  background: var(--peach-ink);
  color: #fff;
  font: inherit;
  font-weight: 500;
  white-space: nowrap;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  cursor: pointer;
  transition: transform .15s ease, opacity .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn:disabled { opacity: .55; cursor: default; transform: none; }
.btn-ghost { background: transparent; color: var(--peach-ink); }
.btn-ghost:hover { background: rgba(215, 117, 112, .1); }
.btn-mini {
  min-height: 32px; padding: .25rem .7rem; font-size: .8rem;
  border-radius: 999px; border: 1px solid var(--line);
  background: #fff; color: var(--ink); font-family: inherit; cursor: pointer;
}
.btn-mini:hover { border-color: var(--peach-ink); color: var(--peach-ink); }
.btn-del:hover { border-color: var(--peach-ink); background: var(--peach-ink); color: #fff; }

.bulk { margin-top: 1rem; padding-top: .9rem; border-top: 1px solid var(--line); }
.bulk summary { cursor: pointer; font-weight: 500; }
.bulk textarea { margin: .6rem 0; }

/* --- bảng --- */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th, td { padding: .6rem .5rem; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: .75rem; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-soft); font-weight: 600; }
tr:last-child td { border-bottom: 0; }
td .who { font-weight: 500; }
td .note { display: block; color: var(--ink-soft); font-size: .8rem; }
.link-cell { display: flex; align-items: center; gap: .4rem; flex-wrap: wrap; }
.link-cell code { font-size: .78rem; }
.pill { display: inline-block; padding: .1rem .55rem; border-radius: 999px; font-size: .75rem; font-weight: 500; }
.pill-yes { background: #e2f0e4; color: #2f6b3a; }
.pill-no { background: #f6e0de; color: #96403c; }
.pill-none { background: rgba(89, 71, 63, .08); color: var(--ink-soft); }
.actions { display: flex; gap: .35rem; justify-content: flex-end; }

/* --- toast --- */
.toast {
  position: fixed; left: 50%; bottom: 1.25rem; transform: translate(-50%, 150%);
  padding: .6rem 1.1rem; border-radius: 999px;
  background: var(--ink); color: #fff; font-size: .85rem;
  transition: transform .3s cubic-bezier(.2, .8, .2, 1);
  pointer-events: none; z-index: 20;
}
.toast.show { transform: translate(-50%, 0); }

@media (prefers-reduced-motion: reduce) {
  * { transition-duration: .01ms !important; }
}