/* Supplier portal. Tokens copied from frontend/css/app.css so it matches ITECH Group OS.
   System fonts only: this page must load in mainland China with no external request. */
:root {
  --accent: #00b4d8; --accent-strong: #0091ad; --on-accent: #04121a;
  --ok: #22c55e; --ok-rgb: 34, 197, 94;
  --warn: #f59e0b; --warn-rgb: 245, 158, 11;
  --danger: #ef4444; --danger-rgb: 239, 68, 68;
  --info: #60a5fa; --info-rgb: 96, 165, 250;
  --radius: 10px; --radius-sm: 7px; --radius-lg: 16px;
  --bg: #0b1220; --surface: #131e33; --surface-2: #1b2942; --surface-3: #24344f;
  --border: #2b3c58; --text: #e6edf6; --text-dim: #93a4bd;
  --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .28);
  --pad: 14px;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #f4f6f9; --surface: #ffffff; --surface-2: #eef2f7; --surface-3: #e3e9f1;
    --border: #d5dde8; --text: #12161c; --text-dim: #5b6472;
    --accent: #0091ad; --accent-strong: #007a93; --on-accent: #ffffff;
    --shadow: 0 1px 2px rgba(16, 30, 54, .06), 0 8px 20px rgba(16, 30, 54, .07);
  }
}
@media (min-width: 700px) { :root { --pad: 24px; } }

* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); }
body {
  font: 16px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei",
        "Hiragino Sans GB", "Noto Sans CJK SC", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}
h1, h2, h3 { margin: 0; line-height: 1.25; }
h1 { font-size: 1.35rem; }
h2 { font-size: 1.1rem; }
h3 { font-size: 1rem; }
a { color: var(--accent); }
p { margin: 0; }
.dim { color: var(--text-dim); }
.small { font-size: .875rem; }
[hidden] { display: none !important; }

/* shell */
.top {
  background: var(--navy-bg, #0f1e3a); color: #e6edf6;
  border-bottom: 1px solid var(--border);
}
.top-in {
  max-width: 920px; margin: 0 auto; padding: 10px var(--pad);
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
}
.logo { height: 30px; width: auto; display: block; background: #fff; border-radius: 4px; padding: 2px 6px; }
.brand { font-weight: 600; flex: 1 1 auto; min-width: 0; }
.top .btn.ghost { color: #e6edf6; border-color: rgba(255, 255, 255, .3); }
.tabs {
  max-width: 920px; margin: 0 auto; padding: 0 var(--pad);
  display: flex; gap: 4px;
}
.tabs a {
  padding: 10px 14px; text-decoration: none; color: #a9b9d0; border-bottom: 3px solid transparent;
  min-height: 44px; display: inline-flex; align-items: center;
}
.tabs a.on { color: #fff; border-bottom-color: var(--accent); }
main { max-width: 920px; margin: 0 auto; padding: var(--pad); }
.stack > * + * { margin-top: 14px; }

/* cards + forms */
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: var(--pad); box-shadow: var(--shadow); min-width: 0;
}
.card.link { display: block; text-decoration: none; color: inherit; }
.card.link:active { background: var(--surface-2); }
.row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.row.between { justify-content: space-between; }
.grid2 { display: grid; grid-template-columns: minmax(0, 1fr); gap: 12px; }
@media (min-width: 640px) { .grid2 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
label { display: block; font-size: .875rem; color: var(--text-dim); margin-bottom: 4px; }
input, select, textarea {
  width: 100%; min-height: 44px; padding: 10px 12px; font: inherit; color: var(--text);
  background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius-sm);
}
textarea { min-height: 80px; resize: vertical; }
input:focus, select:focus, textarea:focus, .btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
input[type=file] { padding: 9px 10px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px; min-height: 44px;
  padding: 10px 18px; font: inherit; font-weight: 600; cursor: pointer; text-decoration: none;
  color: var(--on-accent); background: var(--accent); border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
}
.btn.big { width: 100%; min-height: 52px; font-size: 1.05rem; }
.btn.ghost { background: transparent; color: var(--text); border-color: var(--border); font-weight: 500; }
.btn.small { min-height: 36px; padding: 6px 12px; font-size: .875rem; }
.btn[disabled] { opacity: .55; cursor: not-allowed; }

.chip {
  display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: .8rem; font-weight: 600;
  background: var(--surface-3); color: var(--text); white-space: nowrap;
}
.chip.ok { background: rgba(var(--ok-rgb), .18); color: var(--ok); }
.chip.warn { background: rgba(var(--warn-rgb), .18); color: var(--warn); }
.chip.danger { background: rgba(var(--danger-rgb), .18); color: var(--danger); }
.chip.info { background: rgba(var(--info-rgb), .18); color: var(--info); }

.msg { padding: 10px 12px; border-radius: var(--radius-sm); font-size: .95rem; overflow-wrap: anywhere; }
.msg.err { background: rgba(var(--danger-rgb), .15); color: var(--danger); border: 1px solid rgba(var(--danger-rgb), .4); }
.msg.ok { background: rgba(var(--ok-rgb), .15); color: var(--ok); border: 1px solid rgba(var(--ok-rgb), .4); }
.msg.warn { background: rgba(var(--warn-rgb), .15); color: var(--warn); border: 1px solid rgba(var(--warn-rgb), .4); }

.tablewrap { overflow-x: auto; -webkit-overflow-scrolling: touch; border: 1px solid var(--border); border-radius: var(--radius-sm); }
table { border-collapse: collapse; width: 100%; min-width: 520px; font-size: .92rem; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { background: var(--surface-2); color: var(--text-dim); font-weight: 600; white-space: nowrap; }
tr:last-child td { border-bottom: 0; }
td.num, th.num { text-align: right; }

.line { border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 12px; background: var(--surface-2); }
.line + .line { margin-top: 10px; }
.line .ttl { font-weight: 600; overflow-wrap: anywhere; }
.files li { overflow-wrap: anywhere; margin: 4px 0; }
ul { margin: 0; padding-left: 20px; }

.center { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: var(--pad); }
.auth { width: 100%; max-width: 400px; }
.auth .logo { height: 40px; margin: 0 auto 16px; }
.langbar { position: absolute; top: 10px; right: 10px; }
.spin { text-align: center; padding: 40px 0; color: var(--text-dim); }
.mt { margin-top: 12px; }