/* ============================================================
   ระบบให้น้ำทุเรียน — สไตล์ชีต
   พาเลตต์: ดินทราย / ใบทุเรียน / เปลือกหนาม / น้ำ
   ============================================================ */
:root {
  --sand:      #EFE7D6;
  --sand-deep: #E4D9C2;
  --paper:     #FBF8F1;
  --ink:       #20271E;
  --ink-soft:  #5A6151;
  --leaf:      #2E5D34;
  --leaf-soft: #4F7E4A;
  --husk:      #C98A2B;
  --husk-deep: #A66E18;
  --water:     #2C7A93;
  --water-deep:#1F5C70;
  --flesh:     #F2C94C;
  --danger:    #B23A2E;
  --line:      #D8CDB6;
  --shadow:    0 1px 2px rgba(32,39,30,.06), 0 8px 24px rgba(32,39,30,.06);
  --radius:    14px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: "Sarabun", system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--sand);
  background-image:
    radial-gradient(120% 90% at 80% -10%, rgba(79,126,74,.10), transparent 60%),
    radial-gradient(90% 70% at -10% 110%, rgba(44,122,147,.08), transparent 55%);
  line-height: 1.55;
  font-size: 16px;
}
h1, h2, h3, .display { font-family: "Kanit", "Sarabun", sans-serif; font-weight: 600; letter-spacing: .2px; }
a { color: var(--water-deep); }

/* ---------- Layout ---------- */
.topbar {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 18px; background: var(--leaf); color: #F4EFE2;
  position: sticky; top: 0; z-index: 20;
  box-shadow: 0 2px 14px rgba(32,39,30,.18);
}
.topbar .brand { display: flex; align-items: center; gap: 10px; font-family: "Kanit", sans-serif; font-weight: 600; font-size: 18px; }
.topbar .mark {
  width: 30px; height: 30px; border-radius: 8px; flex: none;
  background: var(--husk); color: var(--leaf);
  display: grid; place-items: center; font-weight: 700;
}
.topbar .spacer { flex: 1; }
.topbar nav { display: flex; gap: 4px; }
.topbar nav a {
  color: #EAE3D2; text-decoration: none; padding: 7px 12px; border-radius: 8px;
  font-size: 14px; font-family: "Kanit", sans-serif;
}
.topbar nav a:hover { background: rgba(255,255,255,.12); }
.topbar nav a.active { background: var(--husk); color: var(--leaf); }
.topbar .userbox { font-size: 13px; color: #D9D1BE; display: flex; align-items: center; gap: 10px; }

.wrap { max-width: 960px; margin: 0 auto; padding: 22px 16px 64px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 760px) { .grid2 { grid-template-columns: 1fr; } }

/* ---------- Cards ---------- */
.card {
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 18px;
}
.card + .card { margin-top: 16px; }
.card h2 { margin: 0 0 4px; font-size: 18px; }
.card .sub { margin: 0 0 14px; color: var(--ink-soft); font-size: 14px; }
.eyebrow {
  font-family: "Kanit", sans-serif; font-size: 12px; letter-spacing: 1.5px;
  text-transform: uppercase; color: var(--husk-deep); margin: 0 0 6px;
}

/* ---------- Forms ---------- */
label { display: block; font-size: 13px; color: var(--ink-soft); margin: 0 0 5px; font-weight: 600; }
.field { margin-bottom: 14px; }
input, select, textarea {
  width: 100%; padding: 11px 12px; border: 1px solid var(--line); border-radius: 10px;
  background: #fff; color: var(--ink); font: inherit; font-size: 15px;
}
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--leaf-soft); box-shadow: 0 0 0 3px rgba(79,126,74,.18);
}
.row { display: flex; gap: 12px; }
.row > * { flex: 1; }
.hint { font-size: 12px; color: var(--ink-soft); margin-top: 4px; }

button, .btn {
  font: inherit; font-family: "Kanit", sans-serif; font-weight: 600; cursor: pointer;
  border: none; border-radius: 10px; padding: 11px 18px; font-size: 15px;
  background: var(--husk); color: #2a2208; transition: filter .15s, transform .05s;
}
button:hover, .btn:hover { filter: brightness(1.04); }
button:active { transform: translateY(1px); }
.btn-block { width: 100%; }
.btn-leaf { background: var(--leaf); color: #F2EEE0; }
.btn-ghost { background: transparent; color: var(--leaf); border: 1px solid var(--line); }
.btn-water { background: var(--water); color: #fff; }
.btn-danger { background: transparent; color: var(--danger); border: 1px solid #E3B7B1; padding: 7px 12px; font-size: 13px; }
.btn-sm { padding: 7px 12px; font-size: 13px; }
button:disabled { opacity: .55; cursor: not-allowed; }

/* ---------- Result panel (signature) ---------- */
.result {
  border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line);
  box-shadow: var(--shadow); background: #fff;
}
.result-head {
  background: linear-gradient(135deg, var(--water) 0%, var(--water-deep) 100%);
  color: #EAF6FA; padding: 16px 18px;
}
.result-head .stage { font-family: "Kanit", sans-serif; font-size: 17px; font-weight: 600; }
.result-head .phase { font-size: 13px; opacity: .82; }
.result-big { padding: 22px 18px; text-align: center; }
.result-big .num { font-family: "Kanit", sans-serif; font-size: 52px; font-weight: 700; line-height: 1; color: var(--water-deep); }
.result-big .unit { font-size: 18px; color: var(--ink-soft); }
.result-big .freq {
  display: inline-block; margin-top: 10px; padding: 5px 14px; border-radius: 999px;
  background: var(--sand); color: var(--leaf); font-family: "Kanit", sans-serif; font-size: 13px;
}
.split {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line);
  border-top: 1px solid var(--line);
}
.split .cell { background: #fff; padding: 16px; text-align: center; }
.split .cell .when { font-family: "Kanit", sans-serif; font-size: 13px; color: var(--husk-deep); }
.split .cell .mins { font-family: "Kanit", sans-serif; font-size: 30px; font-weight: 700; color: var(--ink); }
.split .cell .sm { font-size: 12px; color: var(--ink-soft); }
.result-meta { padding: 14px 18px; border-top: 1px solid var(--line); display: grid; grid-template-columns: 1fr 1fr; gap: 8px 16px; font-size: 13px; }
.result-meta .k { color: var(--ink-soft); }
.result-meta .v { font-weight: 600; text-align: right; }
.callout {
  margin: 0; padding: 12px 16px; border-top: 1px solid var(--line);
  background: #FBF3DF; color: #6a4d12; font-size: 13.5px;
}
.callout.withhold { background: #F6E7E3; color: #7a2a1f; }

/* ---------- Phase / stage chips ---------- */
.phasegroup { margin-bottom: 12px; }
.phasegroup .ph-name { font-family: "Kanit", sans-serif; font-size: 13px; color: var(--leaf); margin-bottom: 6px; font-weight: 600; }
.chips { display: flex; flex-wrap: wrap; gap: 7px; }
.chip {
  padding: 7px 12px; border-radius: 999px; border: 1px solid var(--line); background: #fff;
  font-size: 13px; cursor: pointer; color: var(--ink); font-family: "Sarabun", sans-serif;
}
.chip:hover { border-color: var(--leaf-soft); }
.chip.active { background: var(--leaf); color: #fff; border-color: var(--leaf); }
.chip.withhold.active { background: var(--danger); border-color: var(--danger); }
.chip.shock.active { background: var(--husk); color: #2a2208; border-color: var(--husk); }

/* ---------- Tables (admin) ---------- */
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { font-family: "Kanit", sans-serif; font-size: 12px; color: var(--ink-soft); text-transform: uppercase; letter-spacing: .5px; }
td .mini { font-size: 12px; color: var(--ink-soft); }
.table-scroll { overflow-x: auto; }

/* ---------- Tabs ---------- */
.tabs { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px; }
.tab {
  padding: 8px 14px; border-radius: 10px; border: 1px solid var(--line); background: var(--paper);
  font-family: "Kanit", sans-serif; font-size: 14px; cursor: pointer; color: var(--ink-soft);
}
.tab.active { background: var(--leaf); color: #fff; border-color: var(--leaf); }

/* ---------- Auth ---------- */
.auth-shell { min-height: 100vh; display: grid; place-items: center; padding: 20px; }
.auth-card { width: 100%; max-width: 380px; }
.auth-logo { text-align: center; margin-bottom: 18px; }
.auth-logo .mark {
  width: 54px; height: 54px; border-radius: 14px; margin: 0 auto 10px;
  background: var(--leaf); color: var(--husk); display: grid; place-items: center;
  font-family: "Kanit", sans-serif; font-weight: 700; font-size: 26px;
}
.auth-logo h1 { margin: 0; font-size: 20px; color: var(--leaf); }
.auth-logo p { margin: 2px 0 0; font-size: 13px; color: var(--ink-soft); }

/* ---------- Misc ---------- */
.msg { padding: 10px 14px; border-radius: 10px; font-size: 14px; margin-bottom: 14px; }
.msg.error { background: #F6E7E3; color: #7a2a1f; border: 1px solid #E3B7B1; }
.msg.ok { background: #E7F0E4; color: #2c5226; border: 1px solid #BBD3B3; }
.muted { color: var(--ink-soft); }
.empty { text-align: center; color: var(--ink-soft); padding: 30px 10px; }
.modal-bg {
  position: fixed; inset: 0; background: rgba(32,39,30,.45); display: none;
  place-items: center; padding: 18px; z-index: 50;
}
.modal-bg.show { display: grid; }
.modal { background: var(--paper); border-radius: var(--radius); padding: 20px; width: 100%; max-width: 460px; max-height: 90vh; overflow:auto; box-shadow: var(--shadow); }
.modal h3 { margin: 0 0 14px; }
.modal-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 8px; }
.inline-actions { display: flex; gap: 8px; }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }