/* ── TowerOS App Shell CSS ────────────────────────────────── */
/* Uses design tokens from the landing page: ink, parchment,  */
/* amber, slate, mist, white. Fonts: DM Sans + Instrument Serif */

:root {
  --ink: #0B1929;
  --parchment: #F6F4EF;
  --amber: #C8963E;
  --amber-dim: #9B7230;
  --amber-hover: #B07830;
  --slate: #3D5266;
  --mist: #E4E1D9;
  --white: #FFFFFF;
  --danger: #C0392B;
  --danger-light: #FDEDEC;
  --success: #27AE60;
  --success-light: #E9F7EF;
  --warning: #E67E22;
  --warning-light: #FEF5E7;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--parchment);
  color: var(--ink);
  line-height: 1.6;
  font-size: 16px;
  min-height: 100vh;
}

::selection { background: var(--amber); color: var(--white); }
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--parchment); }
::-webkit-scrollbar-thumb { background: var(--amber); border-radius: 3px; }

h1, h2, h3, h4 { font-family: 'Instrument Serif', serif; font-weight: 400; }
a { color: inherit; text-decoration: none; }

/* ── App Shell ───────────────────────────────────────────── */
.app-nav {
  background: var(--ink);
  color: var(--white);
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 0;
  height: 56px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.app-nav-logo {
  font-family: 'Instrument Serif', serif;
  font-size: 20px;
  color: var(--amber);
  margin-right: 32px;
  flex-shrink: 0;
}

.app-nav-links {
  display: flex;
  gap: 4px;
  flex: 1;
}

.app-nav-links a {
  color: var(--mist);
  font-size: 14px;
  padding: 6px 12px;
  border-radius: 4px;
  transition: background 0.15s, color 0.15s;
}

.app-nav-links a:hover, .app-nav-links a.active {
  background: rgba(255,255,255,0.1);
  color: var(--white);
}

.app-nav-cta {
  background: var(--amber);
  color: var(--ink);
  font-size: 13px;
  font-weight: 600;
  padding: 7px 14px;
  border-radius: 4px;
  border: none;
  cursor: pointer;
  transition: background 0.15s;
}

.app-nav-cta:hover { background: var(--amber-hover); }

/* ── Page Layout ─────────────────────────────────────────── */
.page-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 24px;
}

.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 32px;
  gap: 16px;
}

.page-header h1 { font-size: 36px; color: var(--ink); }
.page-header p { color: var(--slate); margin-top: 4px; font-size: 15px; }

/* ── Cards ───────────────────────────────────────────────── */
.card {
  background: var(--white);
  border: 1px solid var(--mist);
  border-radius: 8px;
  padding: 20px 24px;
  box-shadow: 0 1px 3px rgba(11,25,41,0.06);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
}

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 16px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  font-family: 'DM Sans', sans-serif;
  cursor: pointer;
  border: none;
  transition: background 0.15s, transform 0.1s;
}

.btn:active { transform: scale(0.98); }

.btn-primary { background: var(--amber); color: var(--white); }
.btn-primary:hover { background: var(--amber-hover); }

.btn-secondary { background: var(--mist); color: var(--ink); }
.btn-secondary:hover { background: #d4d1c8; }

.btn-danger { background: var(--danger); color: var(--white); }
.btn-danger:hover { background: #a93226; }

.btn-sm { padding: 6px 12px; font-size: 13px; }

.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ── Risk Badges ─────────────────────────────────────────── */
.risk-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.risk-high { background: var(--danger-light); color: var(--danger); }
.risk-medium { background: var(--warning-light); color: var(--warning); }
.risk-low { background: var(--success-light); color: var(--success); }

/* ── Deal Card ───────────────────────────────────────────── */
.deal-card {
  background: var(--white);
  border: 1px solid var(--mist);
  border-radius: 8px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: box-shadow 0.2s, border-color 0.2s;
  cursor: pointer;
}

.deal-card:hover {
  box-shadow: 0 4px 12px rgba(11,25,41,0.1);
  border-color: var(--amber);
}

.deal-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

.deal-card h3 { font-size: 18px; }
.deal-card .company { color: var(--slate); font-size: 14px; }
.deal-card .deal-value { font-size: 20px; font-weight: 600; color: var(--ink); font-family: 'DM Sans', sans-serif; }

.deal-card-meta {
  display: flex;
  gap: 16px;
  font-size: 13px;
  color: var(--slate);
}

.deal-card-meta span { display: flex; align-items: center; gap: 4px; }

.deal-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
}

/* ── Issue List ───────────────────────────────────────────── */
.issue-item {
  background: var(--white);
  border: 1px solid var(--mist);
  border-left: 4px solid var(--amber);
  border-radius: 6px;
  padding: 16px 20px;
  margin-bottom: 12px;
}

.issue-item.severity-high { border-left-color: var(--danger); }
.issue-item.severity-medium { border-left-color: var(--warning); }
.issue-item.severity-low { border-left-color: var(--success); }

.issue-header { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 6px; }
.issue-title { font-size: 15px; font-weight: 600; }
.issue-desc { font-size: 14px; color: var(--slate); margin-bottom: 8px; }
.issue-docs { font-size: 12px; color: var(--amber-dim); }

.issue-actions { display: flex; gap: 8px; }

/* ── Forms ────────────────────────────────────────────────── */
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; color: var(--slate); margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.5px; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--mist);
  border-radius: 6px;
  font-size: 15px;
  font-family: 'DM Sans', sans-serif;
  background: var(--white);
  color: var(--ink);
  transition: border-color 0.15s;
}

.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none;
  border-color: var(--amber);
}

.form-group textarea { resize: vertical; min-height: 120px; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ── Document Upload ─────────────────────────────────────── */
.upload-zone {
  border: 2px dashed var(--mist);
  border-radius: 8px;
  padding: 40px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}

.upload-zone:hover, .upload-zone.drag-over {
  border-color: var(--amber);
  background: rgba(200,150,62,0.05);
}

.upload-zone p { color: var(--slate); font-size: 14px; margin-top: 8px; }

/* ── Risk Summary Panel ──────────────────────────────────── */
.risk-panel {
  background: var(--white);
  border: 1px solid var(--mist);
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 24px;
}

.risk-panel-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.risk-panel-header h2 { font-size: 22px; }

.risk-meter { margin-bottom: 16px; }
.risk-meter-bar {
  height: 8px;
  background: var(--mist);
  border-radius: 4px;
  overflow: hidden;
}
.risk-meter-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 0.5s ease;
}
.risk-fill-low { background: var(--success); }
.risk-fill-medium { background: var(--warning); }
.risk-fill-high { background: var(--danger); }

.risk-meter-label { display: flex; justify-content: space-between; font-size: 13px; color: var(--slate); margin-top: 6px; }

.risk-flags { list-style: none; }
.risk-flags li { padding: 6px 0; font-size: 14px; border-bottom: 1px solid var(--mist); display: flex; align-items: center; gap: 8px; }
.risk-flags li:last-child { border-bottom: none; }

/* ── Stats Row ───────────────────────────────────────────── */
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
  margin-bottom: 32px;
}

.stat-card {
  background: var(--white);
  border: 1px solid var(--mist);
  border-radius: 8px;
  padding: 16px 20px;
}

.stat-label { font-size: 12px; font-weight: 600; color: var(--slate); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 4px; }
.stat-value { font-size: 28px; font-weight: 600; color: var(--ink); font-family: 'DM Sans', sans-serif; }
.stat-sub { font-size: 12px; color: var(--slate); margin-top: 2px; }

/* ── Breadcrumb ───────────────────────────────────────────── */
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--slate); margin-bottom: 24px; }
.breadcrumb a { color: var(--amber-dim); }
.breadcrumb span { color: var(--mist); }

/* ── Empty State ─────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 60px 24px;
  color: var(--slate);
}

.empty-state h3 { font-size: 22px; margin-bottom: 8px; color: var(--ink); }
.empty-state p { margin-bottom: 20px; }

/* ── Spinner ──────────────────────────────────────────────── */
.spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2px solid var(--mist);
  border-top-color: var(--amber);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ── Toast ───────────────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--ink);
  color: var(--white);
  padding: 12px 20px;
  border-radius: 6px;
  font-size: 14px;
  z-index: 999;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  animation: slideUp 0.3s ease;
}

@keyframes slideUp { from { transform: translateY(20px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }

/* ── Table ───────────────────────────────────────────────── */
.data-table { width: 100%; border-collapse: collapse; }
.data-table th { text-align: left; padding: 10px 16px; font-size: 12px; font-weight: 600; color: var(--slate); text-transform: uppercase; letter-spacing: 0.5px; border-bottom: 2px solid var(--mist); }
.data-table td { padding: 12px 16px; font-size: 14px; border-bottom: 1px solid var(--mist); }
.data-table tr:hover td { background: rgba(200,150,62,0.03); }

/* ── Section Headers ─────────────────────────────────────── */
.section-title {
  font-size: 20px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--mist);
  display: flex;
  align-items: center;
  justify-content: space-between;
}