@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@300;400;500;600&family=IBM+Plex+Sans:wght@300;400;500;600&display=swap');

:root {
  --bg: #0d0f14;
  --bg2: #13161e;
  --bg3: #1a1e28;
  --border: #252a38;
  --border2: #2e3447;
  --accent: #4f8ef7;
  --accent2: #3d7ae8;
  --green: #3dd68c;
  --red: #f76e6e;
  --yellow: #f5c842;
  --text: #e8ecf4;
  --text2: #8b92a8;
  --text3: #5a6177;
  --mono: 'IBM Plex Mono', monospace;
  --sans: 'IBM Plex Sans', sans-serif;
}

[data-theme="light"] {
  --bg: #f4f5f7;
  --bg2: #ffffff;
  --bg3: #f0f1f4;
  --border: #dde0e8;
  --border2: #c8ccd8;
  --accent: #2563eb;
  --accent2: #1d4ed8;
  --green: #16a34a;
  --red: #dc2626;
  --yellow: #ca8a04;
  --text: #111827;
  --text2: #4b5563;
  --text3: #9ca3af;
}

/* ─── Reset ─────────────────────────────────────────────────── */
* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  font-size: 14px;
  line-height: 1.6;
}

/* ─── Layout ─────────────────────────────────────────────────── */
.app-shell { display: flex; min-height: 100vh; }

.sidebar {
  width: 220px;
  min-width: 220px;
  background: var(--bg2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 0;
  position: sticky;
  top: 0;
  height: 100vh;
}

.sidebar-logo { padding: 20px 20px 16px; border-bottom: 1px solid var(--border); }
.sidebar-logo .mark { font-family: var(--mono); font-size: 11px; font-weight: 600; letter-spacing: 0.15em; text-transform: uppercase; color: var(--accent); }
.sidebar-logo .name { font-size: 15px; font-weight: 600; color: var(--text); margin-top: 3px; }

.sidebar-nav { flex: 1; padding: 12px 0; }
.nav-section-label { font-family: var(--mono); font-size: 9px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text3); padding: 12px 20px 4px; }

.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 20px; cursor: pointer; color: var(--text2);
  font-size: 13px; font-weight: 400;
  border-left: 2px solid transparent;
  transition: all 0.15s; user-select: none;
}
.nav-item:hover { color: var(--text); background: var(--bg3); }
.nav-item.active { color: var(--accent); border-left-color: var(--accent); background: rgba(79,142,247,0.07); font-weight: 500; }
.nav-item .nav-icon { font-size: 15px; width: 18px; text-align: center; }

.main { flex: 1; display: flex; flex-direction: column; min-width: 0; }

.topbar {
  height: 52px; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; padding: 0 28px;
  background: var(--bg2); gap: 12px; flex-shrink: 0;
}
.topbar-title { font-family: var(--mono); font-size: 12px; letter-spacing: 0.08em; color: var(--text2); text-transform: uppercase; }
.topbar-status { margin-left: auto; display: flex; align-items: center; gap: 6px; font-family: var(--mono); font-size: 11px; color: var(--text3); }
.status-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--text3); }
.status-dot.ok { background: var(--green); box-shadow: 0 0 6px var(--green); }
.status-dot.warn { background: var(--yellow); }

.content { flex: 1; padding: 28px; overflow-y: auto; }

/* ─── Pages ──────────────────────────────────────────────────── */
.page { display: none; }
.page.active { display: block; }

/* ─── Cards ──────────────────────────────────────────────────── */
.card { background: var(--bg2); border: 1px solid var(--border); border-radius: 8px; padding: 20px 24px; margin-bottom: 16px; }
.card-title { font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text3); margin-bottom: 16px; display: flex; align-items: center; gap: 8px; }
.card-title::after { content: ''; flex: 1; height: 1px; background: var(--border); }

/* ─── Upload zone ─────────────────────────────────────────────── */
.upload-zone { border: 1.5px dashed var(--border2); border-radius: 8px; padding: 32px; text-align: center; cursor: pointer; transition: all 0.2s; background: var(--bg3); }
.upload-zone:hover, .upload-zone.drag { border-color: var(--accent); background: rgba(79,142,247,0.04); }
.upload-zone .upload-icon { font-size: 28px; margin-bottom: 10px; opacity: 0.5; }
.upload-zone .upload-label { font-size: 14px; color: var(--text2); }
.upload-zone .upload-hint { font-size: 11px; color: var(--text3); margin-top: 4px; font-family: var(--mono); }
.upload-zone input[type=file] { display: none; }

.file-info { display: flex; align-items: center; gap: 12px; padding: 12px 16px; background: var(--bg3); border: 1px solid var(--border2); border-radius: 6px; margin-top: 12px; }
.file-info .fi-icon { font-size: 20px; }
.file-info .fi-name { font-family: var(--mono); font-size: 12px; color: var(--text); }
.file-info .fi-meta { font-size: 11px; color: var(--text3); }
.file-info .fi-remove { margin-left: auto; cursor: pointer; color: var(--text3); font-size: 16px; }
.file-info .fi-remove:hover { color: var(--red); }

/* ─── Form ───────────────────────────────────────────────────── */
.form-row { display: flex; gap: 16px; margin-bottom: 14px; flex-wrap: wrap; }
.form-group { display: flex; flex-direction: column; gap: 5px; flex: 1; min-width: 140px; }
.form-label { font-family: var(--mono); font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text3); }
.form-control { background: var(--bg3); border: 1px solid var(--border2); border-radius: 5px; padding: 8px 11px; color: var(--text); font-family: var(--sans); font-size: 13px; outline: none; transition: border-color 0.15s; width: 100%; }
.form-control:focus { border-color: var(--accent); }
.form-control option { background: var(--bg2); }

/* ─── Buttons ─────────────────────────────────────────────────── */
.btn { display: inline-flex; align-items: center; gap: 7px; padding: 9px 18px; border-radius: 6px; font-size: 13px; font-weight: 500; cursor: pointer; border: none; transition: all 0.15s; font-family: var(--sans); white-space: nowrap; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent2); }
.btn-primary:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-ghost { background: transparent; color: var(--text2); border: 1px solid var(--border2); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-danger { background: rgba(247,110,110,0.12); color: var(--red); border: 1px solid rgba(247,110,110,0.3); }
.btn-danger:hover { background: rgba(247,110,110,0.2); }

/* ─── Table ───────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 12px; }
th { font-family: var(--mono); font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text3); padding: 8px 10px; text-align: left; border-bottom: 1px solid var(--border); white-space: nowrap; }
td { padding: 9px 10px; border-bottom: 1px solid var(--border); color: var(--text); vertical-align: top; }
tr:hover td { background: var(--bg3); }
.num { font-family: var(--mono); font-size: 11px; text-align: right; }
.pos { color: var(--green); }
.neg { color: var(--red); }
.tag { display: inline-block; font-family: var(--mono); font-size: 9px; letter-spacing: 0.06em; text-transform: uppercase; padding: 2px 7px; border-radius: 3px; background: var(--bg3); border: 1px solid var(--border2); color: var(--text2); }

/* ─── Badges ─────────────────────────────────────────────────── */
.badge { font-family: var(--mono); font-size: 9px; padding: 2px 6px; border-radius: 3px; letter-spacing: 0.05em; text-transform: uppercase; }
.badge-blue   { background: rgba(79,142,247,0.15); color: var(--accent); }
.badge-green  { background: rgba(61,214,140,0.12); color: var(--green); }
.badge-red    { background: rgba(247,110,110,0.12); color: var(--red); }
.badge-yellow { background: rgba(245,200,66,0.12);  color: var(--yellow); }

/* ─── Stats row ───────────────────────────────────────────────── */
.stats-row { display: flex; gap: 14px; margin-bottom: 20px; flex-wrap: wrap; }
.stat-card { flex: 1; min-width: 150px; background: var(--bg2); border: 1px solid var(--border); border-radius: 8px; padding: 16px 18px; }
.stat-label { font-family: var(--mono); font-size: 10px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text3); margin-bottom: 6px; }
.stat-value { font-family: var(--mono); font-size: 20px; font-weight: 600; color: var(--text); }
.stat-value.pos { color: var(--green); }
.stat-value.neg { color: var(--red); }

/* ─── Progress ─────────────────────────────────────────────────── */
.progress-bar-wrap { background: var(--bg3); border-radius: 4px; height: 4px; margin-top: 14px; overflow: hidden; }
.progress-bar { height: 4px; background: var(--accent); border-radius: 4px; transition: width 0.4s; width: 0; }

/* ─── Alerts ─────────────────────────────────────────────────── */
.alert { padding: 10px 14px; border-radius: 6px; font-size: 13px; margin-bottom: 14px; display: flex; align-items: flex-start; gap: 8px; }
.alert-info    { background: rgba(79,142,247,0.1);  border: 1px solid rgba(79,142,247,0.25);  color: var(--text); }
.alert-warn    { background: rgba(245,200,66,0.1);  border: 1px solid rgba(245,200,66,0.25);  color: var(--text); }
.alert-error   { background: rgba(247,110,110,0.1); border: 1px solid rgba(247,110,110,0.25); color: var(--red); }
.alert-success { background: rgba(61,214,140,0.1);  border: 1px solid rgba(61,214,140,0.25);  color: var(--green); }

/* ─── Settings ────────────────────────────────────────────────── */
.settings-group { margin-bottom: 24px; }
.settings-group-title { font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); margin-bottom: 14px; padding-bottom: 8px; border-bottom: 1px solid var(--border); }
.settings-row { display: flex; align-items: center; gap: 14px; margin-bottom: 10px; flex-wrap: wrap; }
.settings-key { font-family: var(--mono); font-size: 11px; color: var(--text2); min-width: 200px; }
.settings-desc { font-size: 11px; color: var(--text3); margin-top: 2px; }

/* ─── Methodology ─────────────────────────────────────────────── */
.method-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 900px) { .method-grid { grid-template-columns: 1fr; } }
.method-item { background: var(--bg3); border: 1px solid var(--border); border-radius: 7px; padding: 14px 16px; }
.method-item-title { font-family: var(--mono); font-size: 11px; color: var(--accent); margin-bottom: 6px; display: flex; align-items: center; gap: 6px; }
.method-item p { font-size: 12px; color: var(--text2); line-height: 1.65; }
.method-formula { font-family: var(--mono); font-size: 11px; color: var(--yellow); background: var(--bg); border: 1px solid var(--border); border-radius: 4px; padding: 6px 10px; margin-top: 8px; }

/* ─── Spinner ─────────────────────────────────────────────────── */
.spinner { width: 16px; height: 16px; border: 2px solid rgba(79,142,247,0.2); border-top-color: var(--accent); border-radius: 50%; animation: spin 0.7s linear infinite; display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ─── Log ─────────────────────────────────────────────────────── */
.log-area { background: var(--bg); border: 1px solid var(--border); border-radius: 6px; padding: 12px; font-family: var(--mono); font-size: 11px; color: var(--text2); max-height: 200px; overflow-y: auto; line-height: 1.8; }
.log-ok   { color: var(--green); }
.log-warn { color: var(--yellow); }
.log-err  { color: var(--red); }

/* ─── Period chips ───────────────────────────────────────────── */
.period-chips { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
.period-chip { display: inline-flex; align-items: center; gap: 4px; padding: 4px 11px; border-radius: 20px; font-family: var(--mono); font-size: 11px; cursor: pointer; border: 1px solid var(--border2); color: var(--text2); background: var(--bg3); transition: all 0.15s; user-select: none; white-space: nowrap; }
.period-chip:hover { border-color: var(--accent); color: var(--accent); }
.period-chip.active { border-color: var(--accent); color: var(--accent); background: rgba(79,142,247,0.1); }

.divider { height: 1px; background: var(--border); margin: 20px 0; }

/* ─── FX Coverage ─────────────────────────────────────────────── */
.cov-row { display: flex; align-items: flex-start; gap: 14px; padding: 12px 0; border-bottom: 1px solid var(--border); }
.cov-row:last-child { border-bottom: none; }
.cov-ccy { font-family: var(--mono); font-size: 13px; font-weight: 600; width: 44px; flex-shrink: 0; padding-top: 3px; color: var(--text); }
.cov-bar-wrap { width: 100%; height: 8px; background: var(--bg3); border-radius: 4px; overflow: hidden; display: flex; }
.cov-seg { height: 100%; transition: width 0.3s; }
.cov-seg-ok      { background: var(--green); }
.cov-seg-missing { background: var(--red); }
.cov-info { font-size: 11px; color: var(--text2); min-width: 180px; flex: 2; line-height: 1.7; }
.cov-ok   { color: var(--green); }
.cov-miss { color: var(--red); font-weight: 500; }

.cov-drop { margin-top: 10px; border: 1.5px dashed var(--border2); border-radius: 8px; padding: 22px 32px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; cursor: pointer; transition: all 0.2s; background: var(--bg3); text-align: center; }
.cov-drop:hover, .cov-drop.drag-over { border-color: var(--accent); background: rgba(79,142,247,0.04); }
.cov-drop .cov-drop-icon  { font-size: 22px; opacity: 0.5; }
.cov-drop .cov-drop-label { font-size: 13px; color: var(--text2); }
.cov-drop .cov-drop-hint  { font-size: 11px; color: var(--text3); font-family: var(--mono); }
.cov-drop-ok { border-color: var(--green); color: var(--green); background: rgba(61,214,140,0.05); cursor: default; padding: 14px 32px; }
.cov-drop-ok:hover { border-color: var(--green); background: rgba(61,214,140,0.05); }

/* ─── Report style selector ──────────────────────────────────── */
.style-btn { display: flex; align-items: center; gap: 8px; padding: 8px 14px; border: 1px solid var(--border2); border-radius: 6px; background: var(--bg3); color: var(--text2); font-size: 12px; font-family: var(--sans); cursor: pointer; transition: all 0.15s; }
.style-btn:hover { border-color: var(--accent); color: var(--text); }
.style-btn.active { border-color: var(--accent); background: rgba(79,142,247,0.08); color: var(--accent); font-weight: 500; }
.style-btn-preview { width: 28px; height: 20px; border-radius: 3px; border: 1px solid var(--border2); flex-shrink: 0; }
.style-preview-classic   { background: #fff; border-top: 3px solid #111; }
.style-preview-modern    { background: linear-gradient(135deg, #1a3a5c 40%, #fff 40%); }
.style-preview-corporate { background: #fff; border-top: 6px solid #0f172a; }

/* ─── Stamp & Signature ──────────────────────────────────────── */
.stamp-upload-zone { border: 1.5px dashed var(--border2); border-radius: 8px; padding: 20px; text-align: center; cursor: pointer; transition: all 0.2s; background: var(--bg3); max-width: 220px; }
.stamp-upload-zone:hover, .stamp-upload-zone.drag { border-color: var(--accent); background: rgba(79,142,247,0.04); }
.stamp-preview-wrap { display: flex; align-items: flex-start; gap: 16px; flex-wrap: wrap; }
.stamp-preview-img { width: 120px; height: 120px; object-fit: contain; border: 1px solid var(--border2); border-radius: 6px; background: rgba(255,255,255,0.04); padding: 6px; }

.sig-block { display: flex; gap: 20px; flex-wrap: wrap; margin-top: 8px; }
.sig-card { flex: 1; min-width: 200px; background: var(--bg3); border: 1px solid var(--border); border-radius: 7px; padding: 14px 16px; }
.sig-card-title { font-family: var(--mono); font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); margin-bottom: 12px; }

/* ─── Theme toggle ─────────────────────────────────────────────── */
.theme-toggle { background: var(--bg3); border: 1px solid var(--border2); border-radius: 6px; width: 32px; height: 32px; cursor: pointer; display: flex; align-items: center; justify-content: center; font-size: 15px; margin-left: 12px; transition: all 0.15s; flex-shrink: 0; }
.theme-toggle:hover { border-color: var(--accent); }

/* ─── Preview ──────────────────────────────────────────────────── */
.preview-section-title { font-family: var(--mono); font-size: 13px; font-weight: 600; color: var(--text); padding: 12px 0 8px; border-bottom: 1px solid var(--border); margin-bottom: 14px; }
.preview-header { display: flex; gap: 24px; margin-bottom: 20px; flex-wrap: wrap; }
.preview-header-item .label { font-size: 11px; color: var(--text3); font-family: var(--mono); }
.preview-header-item .value { font-size: 13px; color: var(--text); font-weight: 500; }

/* ─── Login page ──────────────────────────────────────────────── */
.login-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: var(--bg); }
.login-card { background: var(--bg2); border: 1px solid var(--border); border-radius: 12px; padding: 40px 44px; width: 100%; max-width: 380px; }
.login-logo { font-family: var(--mono); font-size: 11px; font-weight: 600; letter-spacing: 0.2em; text-transform: uppercase; color: var(--accent); margin-bottom: 4px; }
.login-title { font-size: 22px; font-weight: 600; color: var(--text); margin-bottom: 28px; }
.login-error { background: rgba(247,110,110,0.1); border: 1px solid rgba(247,110,110,0.3); color: var(--red); padding: 10px 14px; border-radius: 6px; font-size: 13px; margin-bottom: 16px; display: none; }
.login-error.visible { display: block; }
.login-btn { width: 100%; padding: 11px; font-size: 14px; margin-top: 8px; justify-content: center; }
.login-footer { margin-top: 20px; text-align: center; font-family: var(--mono); font-size: 10px; color: var(--text3); letter-spacing: 0.05em; }