:root {
  --ink: #15231d;
  --muted: #65736c;
  --paper: #f5f3ec;
  --card: rgba(255, 255, 252, .92);
  --line: #dfe3dc;
  --accent: #176b4d;
  --accent-dark: #0d4e37;
  --accent-soft: #e4f1ea;
  --danger: #b43a36;
  --warning: #9a6418;
  --shadow: 0 24px 70px rgba(30, 50, 40, .12);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--paper);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; min-height: 100vh; background: linear-gradient(145deg, #f7f5ef 0%, #edf2ea 100%); }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
a { color: inherit; text-decoration: none; }

.ambient { position: fixed; z-index: -1; border-radius: 50%; filter: blur(2px); opacity: .55; }
.ambient-one { width: 420px; height: 420px; left: -140px; top: -160px; background: radial-gradient(circle, #b7dec8, transparent 70%); }
.ambient-two { width: 560px; height: 560px; right: -220px; bottom: -260px; background: radial-gradient(circle, #d7c99c, transparent 70%); }

.login-layout { min-height: 100vh; display: grid; place-items: center; padding: 28px; }
.login-card { width: min(100%, 440px); padding: 48px; border: 1px solid rgba(255,255,255,.85); border-radius: 28px; background: var(--card); box-shadow: var(--shadow); backdrop-filter: blur(18px); }
.brand-mark { width: 58px; height: 58px; display: grid; place-items: center; border-radius: 18px; background: var(--ink); color: white; font-weight: 800; letter-spacing: -.04em; }
.brand-mark.small { width: 42px; height: 42px; border-radius: 13px; font-size: 14px; }
.eyebrow { margin: 22px 0 8px; color: var(--accent); font-size: 12px; font-weight: 800; letter-spacing: .18em; }
h1, h2 { margin: 0; letter-spacing: -.035em; }
h1 { font-size: clamp(30px, 6vw, 42px); }
h2 { font-size: 27px; }
.lead { margin: 12px 0 30px; color: var(--muted); line-height: 1.7; }

.stack { display: grid; gap: 18px; }
label { display: grid; gap: 8px; color: #435149; font-size: 14px; font-weight: 650; }
input, select, textarea { width: 100%; border: 1px solid var(--line); border-radius: 12px; outline: none; background: rgba(255,255,255,.9); color: var(--ink); transition: border-color .2s, box-shadow .2s; }
input, select { height: 46px; padding: 0 13px; }
textarea { padding: 13px; resize: vertical; }
input:focus, select:focus, textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 4px rgba(23,107,77,.1); }

.primary, .ghost { border: 0; border-radius: 12px; padding: 12px 20px; font-weight: 750; transition: transform .15s, background .2s, opacity .2s; }
.primary { background: var(--accent); color: white; box-shadow: 0 8px 22px rgba(23,107,77,.2); }
.primary:hover { background: var(--accent-dark); transform: translateY(-1px); }
.primary:disabled { cursor: not-allowed; opacity: .55; transform: none; }
.ghost { background: #eef1ec; color: #34443b; }
.ghost:hover { background: #e3e8e1; }
.wide { width: 100%; }
.compact { padding: 8px 12px; font-size: 13px; }
.message { min-height: 20px; margin: 0; color: var(--accent); font-size: 13px; line-height: 1.5; }
.message.error, .error { color: var(--danger); }

.app-shell { min-height: 100vh; }
.topbar { height: 76px; display: flex; align-items: center; justify-content: space-between; padding: 0 max(24px, calc((100vw - 1180px) / 2)); border-bottom: 1px solid rgba(210,218,210,.8); background: rgba(250,249,244,.78); backdrop-filter: blur(18px); position: sticky; top: 0; z-index: 10; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand > span:last-child { display: grid; }
.brand strong { letter-spacing: .08em; }
.brand small { color: var(--muted); font-size: 11px; }
.account { display: flex; align-items: center; gap: 12px; font-size: 14px; }
.quota { padding: 7px 11px; border-radius: 999px; background: var(--accent-soft); color: var(--accent-dark); }

.workspace { width: min(1180px, calc(100% - 40px)); margin: 34px auto 70px; }
.tabs { display: flex; gap: 6px; margin-bottom: 16px; padding: 5px; width: fit-content; border: 1px solid var(--line); border-radius: 14px; background: rgba(255,255,255,.55); }
.tab { border: 0; border-radius: 9px; padding: 9px 17px; background: transparent; color: var(--muted); font-weight: 700; }
.tab.active { background: var(--ink); color: white; }

.panel { padding: 32px; border: 1px solid rgba(218,224,216,.9); border-radius: 24px; background: var(--card); box-shadow: 0 14px 45px rgba(29,48,38,.07); }
.panel.narrow { max-width: 760px; }
.panel-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 30px; margin-bottom: 30px; padding-bottom: 23px; border-bottom: 1px solid var(--line); }
.panel-heading .eyebrow { margin-top: 0; }
.panel-heading > p { max-width: 420px; margin: 0; color: var(--muted); font-size: 13px; line-height: 1.6; }

fieldset { border: 0; margin: 0; padding: 0; }
legend, .field-block > label:first-child { margin-bottom: 12px; font-size: 13px; font-weight: 800; color: var(--muted); text-transform: uppercase; letter-spacing: .08em; }
.kind-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 28px; }
.kind-grid legend { grid-column: 1 / -1; }
.kind-card { position: relative; display: block; }
.kind-card input { position: absolute; opacity: 0; pointer-events: none; }
.kind-card span { min-height: 92px; display: grid; align-content: center; gap: 5px; padding: 17px; border: 1px solid var(--line); border-radius: 15px; background: #fbfbf8; transition: .2s; }
.kind-card small { color: var(--muted); font-weight: 450; line-height: 1.4; }
.kind-card input:checked + span { border-color: var(--accent); background: var(--accent-soft); box-shadow: inset 0 0 0 1px var(--accent); }
.kind-card input:focus-visible + span { outline: 3px solid rgba(23,107,77,.2); }

.form-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(320px, .95fr); gap: 28px; }
.field-block { min-width: 0; }
.options { padding: 22px; border-radius: 17px; background: #f6f7f3; }
.drop-zone { min-height: 180px; display: grid; place-items: center; align-content: center; gap: 7px; padding: 24px; border: 1.5px dashed #aebbb2; border-radius: 18px; background: rgba(248,250,247,.7); text-align: center; cursor: pointer; transition: .2s; }
.drop-zone:hover, .drop-zone.dragover { border-color: var(--accent); background: var(--accent-soft); }
.drop-zone input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.drop-zone small { color: var(--muted); font-weight: 450; line-height: 1.5; }
.upload-icon { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 50%; background: var(--ink); color: white; font-size: 22px; }
.preview { width: 100%; max-height: 310px; margin-top: 14px; object-fit: contain; border-radius: 15px; background: #e7e8e3; }
.two-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 16px; }
.rect-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-top: 14px; }
.check-row { display: flex; align-items: flex-start; gap: 9px; margin-top: 15px; font-weight: 550; line-height: 1.5; }
.check-row input { flex: 0 0 auto; width: 17px; height: 17px; margin-top: 2px; accent-color: var(--accent); }
.note { margin: 14px 0 0; padding: 11px 13px; border-left: 3px solid #d1a859; border-radius: 5px; background: #fff9e9; color: #70592f; font-size: 12px; line-height: 1.6; }
.merge-file-list { max-height: 150px; margin: 14px 0 0; padding-left: 24px; overflow: auto; color: var(--muted); font-size: 13px; line-height: 1.8; }
.size-readout { display: grid; align-content: center; padding: 8px 13px; border-radius: 12px; background: white; }
.size-readout span { color: var(--muted); font-size: 12px; }
.size-readout strong { margin-top: 4px; }

.submit-row { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-top: 25px; }
.submit-row > div, .submit-row > p { flex: 1; }
.progress-track { width: min(420px, 100%); height: 6px; margin-top: 8px; border-radius: 99px; overflow: hidden; background: #e2e6e0; }
.progress-track span { display: block; width: 0; height: 100%; background: var(--accent); transition: width .2s; }

.jobs-list { display: grid; gap: 12px; }
.job-card { display: grid; grid-template-columns: 1fr auto; gap: 10px 20px; padding: 18px 20px; border: 1px solid var(--line); border-radius: 15px; background: #fbfbf8; }
.job-title { display: flex; align-items: center; gap: 10px; min-width: 0; }
.job-title strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.job-meta, .job-result { color: var(--muted); font-size: 13px; line-height: 1.6; }
.job-result { grid-column: 1 / -1; }
.job-error { grid-column: 1 / -1; padding: 10px 12px; border-radius: 9px; background: #fff0ef; color: var(--danger); font-size: 13px; }
.status { flex: 0 0 auto; padding: 4px 8px; border-radius: 999px; font-size: 11px; font-weight: 750; }
.status.queued, .status.processing { background: #fff1d6; color: var(--warning); }
.status.succeeded { background: var(--accent-soft); color: var(--accent); }
.status.failed { background: #ffe5e3; color: var(--danger); }
.download { align-self: center; }
.empty { padding: 50px; text-align: center; color: var(--muted); }

@media (max-width: 780px) {
  .topbar { height: auto; padding: 13px 18px; }
  .brand small, #nickname { display: none; }
  .workspace { width: min(100% - 24px, 1180px); margin-top: 18px; }
  .panel { padding: 20px; border-radius: 19px; }
  .panel-heading { align-items: flex-start; flex-direction: column; gap: 12px; }
  .panel-heading > p { display: none; }
  .kind-grid, .form-grid { grid-template-columns: 1fr; }
  .kind-card span { min-height: 76px; }
  .two-columns { grid-template-columns: 1fr; }
  .rect-grid { grid-template-columns: 1fr 1fr; }
  .submit-row { align-items: stretch; flex-direction: column; }
  .submit-row .primary { width: 100%; }
  .job-card { grid-template-columns: 1fr; }
  .download { justify-self: start; }
}

.pdf-file-item{display:flex;align-items:center;gap:10px;padding:8px 0;font-size:13px;color:var(--muted);border-bottom:1px solid var(--line)}
.pdf-file-item:last-child{border-bottom:0}
.pdf-file-thumb{flex:0 0 48px;width:48px;height:48px;object-fit:cover;border-radius:8px;background:#e7e8e3}
.pdf-file-name{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pdf-file-actions{display:flex;gap:4px;flex:none}
.pdf-file-actions button{padding:4px 10px;font-size:12px;border-radius:8px}
.grid-file-list{list-style:none;margin:14px 0 0;padding:0;max-height:280px;overflow:auto}
.grid-file-badge{flex:0 0 28px;width:28px;height:28px;display:grid;place-items:center;border-radius:8px;background:var(--accent);color:#fff;font-size:12px;font-weight:700}

.crop-modal{position:fixed;inset:0;z-index:100;display:grid;place-items:center;background:rgba(0,0,0,.55);backdrop-filter:blur(4px)}
.crop-dialog{width:min(92vw,720px);max-height:90vh;display:flex;flex-direction:column;border-radius:22px;background:var(--card);box-shadow:0 30px 80px rgba(0,0,0,.25);overflow:hidden}
.crop-header{display:flex;align-items:center;justify-content:space-between;padding:16px 22px;border-bottom:1px solid var(--line)}
.crop-header h3{margin:0;font-size:17px}
.crop-body{flex:1;min-height:0;display:grid;place-items:center;padding:16px;background:#e7e8e3;overflow:hidden}
.crop-body canvas{max-width:100%;max-height:60vh;cursor:crosshair;border-radius:4px}
.crop-footer{display:flex;justify-content:flex-end;gap:10px;padding:14px 22px;border-top:1px solid var(--line)}

@media (max-width: 480px) {
  .login-layout { padding: 14px; }
  .login-card { padding: 30px 23px; border-radius: 22px; }
  .account { gap: 6px; }
  .quota { font-size: 12px; }
  .tabs { width: 100%; }
  .tab { flex: 1; padding-inline: 8px; font-size: 13px; }
}