/* =========================================================
   SLB Client Portal — App shell + shared components
   Reference tokens.css variables only.
   ========================================================= */

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--text-base);
  color: var(--color-text-primary);
  background: var(--color-bg-page);
  -webkit-font-smoothing: antialiased;
  line-height: var(--leading-normal);
}
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 600;
  color: var(--color-text-primary);
  margin: 0 0 var(--space-2);
  line-height: var(--leading-tight);
}
p { margin: 0 0 var(--space-3); }
a { color: var(--color-text-link); }
button, input, textarea, select { font-family: inherit; font-size: inherit; }
img { max-width: 100%; display: block; }

.hidden { display: none !important; }

/* ---------------- Scrollable content wrappers ---------------- */
.scroll-x { overflow-x: auto; }

/* ---------------- Login ---------------- */
.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  background:
    radial-gradient(circle at 20% 10%, var(--color-accent-tint) 0%, transparent 45%),
    var(--color-bg-page);
}
.login-card {
  width: 100%;
  max-width: 380px;
  background: var(--color-surface-card);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  padding: var(--space-8) var(--space-7);
  text-align: center;
}
.login-mark {
  font-family: var(--font-serif);
  font-size: var(--text-xl);
  letter-spacing: 0.04em;
  color: var(--color-accent);
  margin-bottom: var(--space-1);
}
.login-sub {
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  margin-bottom: var(--space-7);
}
.login-form { text-align: left; display: flex; flex-direction: column; gap: var(--space-4); }
.login-error {
  background: var(--color-danger-bg);
  color: var(--color-danger);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  font-size: var(--text-sm);
  margin-top: var(--space-2);
}
.login-hint {
  margin-top: var(--space-6);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* ---------------- Form elements ---------------- */
.field { display: flex; flex-direction: column; gap: var(--space-1); }
.field label {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.input, textarea.input, select.input {
  border: 1px solid var(--color-border-default);
  background: var(--color-surface-card);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  color: var(--color-text-primary);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  width: 100%;
}
.input:focus, textarea.input:focus, select.input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: var(--shadow-focus);
}
textarea.input { resize: vertical; min-height: 88px; }

/* ---------------- Buttons ---------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  border: none;
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-5);
  font-size: var(--text-base);
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
  white-space: nowrap;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: var(--color-accent); color: var(--color-text-on-accent); }
.btn-primary:hover:not(:disabled) { background: var(--color-accent-hover); }
.btn-secondary {
  background: var(--color-surface-card);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border-default);
}
.btn-secondary:hover:not(:disabled) { background: var(--color-surface-sunken); }
.btn-danger { background: transparent; color: var(--color-danger); border: 1px solid var(--color-danger); }
.btn-danger:hover:not(:disabled) { background: var(--color-danger-bg); }
.btn-sm { padding: var(--space-2) var(--space-4); font-size: var(--text-sm); }
.btn-block { width: 100%; }
.btn-link {
  background: none; border: none; color: var(--color-text-link);
  font-weight: 600; cursor: pointer; padding: 0; text-decoration: underline;
}

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

.sidebar {
  width: var(--sidebar-width);
  background: var(--color-surface-card);
  border-right: 1px solid var(--color-border-subtle);
  display: flex;
  flex-direction: column;
  padding: var(--space-6) var(--space-4);
  gap: var(--space-6);
  position: sticky;
  top: 0;
  height: 100vh;
}
.sidebar-mark {
  font-family: var(--font-serif);
  font-size: var(--text-lg);
  color: var(--color-accent);
  padding: 0 var(--space-2);
}
.sidebar-mark small { display: block; font-family: var(--font-sans); font-size: var(--text-xs); color: var(--color-text-muted); font-weight: 400; }

.job-switcher {
  padding: 0 var(--space-2);
}
.job-switcher select.input { font-size: var(--text-sm); }

.nav-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: var(--space-1); flex: 1; }
.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: background var(--transition-fast), color var(--transition-fast);
}
.nav-link:hover { background: var(--color-surface-sunken); color: var(--color-text-primary); }
.nav-link.active { background: var(--color-accent-tint); color: var(--color-accent); font-weight: 700; }
.nav-icon { width: 20px; text-align: center; }

.sidebar-footer {
  padding: 0 var(--space-2);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  border-top: 1px solid var(--color-border-subtle);
  padding-top: var(--space-4);
}
.sidebar-user { font-size: var(--text-sm); color: var(--color-text-secondary); }
.sidebar-user strong { color: var(--color-text-primary); display: block; }

.main-col { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.topbar {
  display: none;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  background: var(--color-surface-card);
  border-bottom: 1px solid var(--color-border-subtle);
  position: sticky;
  top: 0;
  z-index: 10;
}
.view-content {
  flex: 1;
  padding: var(--space-7) var(--space-6) var(--space-10);
  max-width: var(--content-max-width);
  width: 100%;
  margin: 0 auto;
}

.tabbar {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0;
  height: var(--tabbar-height);
  background: var(--color-surface-card);
  border-top: 1px solid var(--color-border-subtle);
  z-index: 20;
  padding-bottom: env(safe-area-inset-bottom);
}
.tabbar-list { list-style: none; margin: 0; padding: 0; display: flex; height: 100%; }
.tabbar-item { flex: 1; }
.tabbar-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  height: 100%;
  text-decoration: none;
  color: var(--color-text-muted);
  font-size: 10.5px;
  font-weight: 600;
}
.tabbar-link.active { color: var(--color-accent); }
.tabbar-icon { font-size: 18px; }

/* ---------------- Cards ---------------- */
.card {
  background: var(--color-surface-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--space-6);
}
.card + .card { margin-top: var(--space-5); }
.card-title { font-size: var(--text-md); margin-bottom: var(--space-1); }
.card-sub { color: var(--color-text-secondary); font-size: var(--text-sm); }

/* ---------------- Chips / badges ---------------- */
.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-pill);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.01em;
  white-space: nowrap;
}
.chip-neutral { background: var(--color-surface-sunken); color: var(--color-text-secondary); }
.chip-accent { background: var(--color-accent-tint); color: var(--color-accent); }
.chip-success { background: var(--color-success-bg); color: var(--color-success); }
.chip-warning { background: var(--color-warning-bg); color: var(--color-warning); }
.chip-danger { background: var(--color-danger-bg); color: var(--color-danger); }
.chip-info { background: var(--color-info-bg); color: var(--color-info); }

/* ---------------- Banners ---------------- */
.banner {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-4);
  font-size: var(--text-sm);
}
.banner-warning { background: var(--color-warning-bg); color: #6b4c15; }
.banner-info { background: var(--color-info-bg); color: #223f57; }
.banner-title { font-weight: 700; margin-bottom: 2px; }
.banner-actions { margin-top: var(--space-2); }

/* ---------------- Toast ---------------- */
.toast-stack {
  position: fixed;
  top: var(--space-5);
  right: var(--space-5);
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.toast {
  background: var(--color-text-primary);
  color: #fff;
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-size: var(--text-sm);
  min-width: 220px;
  animation: toast-in var(--transition-base);
}
.toast.toast-error { background: var(--color-danger); }
.toast.toast-success { background: var(--color-success); }
@keyframes toast-in {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------------- Modal / dialog ---------------- */
.modal-overlay {
  position: fixed; inset: 0;
  background: var(--color-surface-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-5);
  z-index: 90;
  animation: fade-in var(--transition-base);
}
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }
.modal-card {
  background: var(--color-surface-card);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  max-width: 480px;
  width: 100%;
  max-height: 88vh;
  overflow-y: auto;
  padding: var(--space-7);
  animation: modal-in var(--transition-base);
}
@keyframes modal-in {
  from { opacity: 0; transform: translateY(12px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
.modal-title { font-size: var(--text-lg); margin-bottom: var(--space-4); }
.modal-legal {
  background: var(--color-accent-tint);
  color: var(--color-accent);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  font-weight: 600;
  margin: var(--space-4) 0;
}
.modal-actions { display: flex; gap: var(--space-3); margin-top: var(--space-6); justify-content: flex-end; }
.modal-summary-row {
  display: flex; justify-content: space-between; gap: var(--space-3);
  padding: var(--space-2) 0; border-bottom: 1px solid var(--color-border-subtle);
  font-size: var(--text-sm);
}
.modal-summary-row:last-of-type { border-bottom: none; }
.modal-summary-row .label { color: var(--color-text-secondary); }
.modal-summary-row .value { font-weight: 600; text-align: right; }

/* ---------------- Empty states ---------------- */
.empty-state {
  text-align: center;
  padding: var(--space-9) var(--space-5);
  color: var(--color-text-secondary);
}
.empty-state .empty-icon { font-size: 32px; margin-bottom: var(--space-3); }
.empty-state .empty-title { font-weight: 700; color: var(--color-text-primary); margin-bottom: var(--space-1); }

/* ---------------- Tables ---------------- */
.table { width: 100%; border-collapse: collapse; font-size: var(--text-sm); }
.table th {
  text-align: left;
  color: var(--color-text-secondary);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: var(--space-3) var(--space-3);
  border-bottom: 1px solid var(--color-border-default);
}
.table td { padding: var(--space-4) var(--space-3); border-bottom: 1px solid var(--color-border-subtle); vertical-align: middle; }
.table tr:last-child td { border-bottom: none; }

/* ---------------- Loading ---------------- */
.spinner-wrap { display: flex; justify-content: center; padding: var(--space-8); color: var(--color-text-muted); }

/* ---------------- Progress bar ---------------- */
.progress-track {
  background: var(--color-surface-sunken);
  border-radius: var(--radius-pill);
  height: 10px;
  overflow: hidden;
}
.progress-fill {
  background: var(--color-accent);
  height: 100%;
  border-radius: var(--radius-pill);
  transition: width var(--transition-base);
}

/* ---------------- Impersonation / read-only ---------------- */
.impersonation-bar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 300;
  background: var(--color-warning-bg);
  color: #6b4c15;
  text-align: center;
  font-size: var(--text-sm);
  font-weight: 700;
  padding: var(--space-2) var(--space-4);
  border-bottom: 1px solid var(--color-border-default);
}
body.is-readonly {
  padding-top: 36px;
}
body.is-readonly .impersonation-bar {
  display: block;
}
/* Hide client action affordances while impersonating read-only. */
body.is-readonly [data-approve-option],
body.is-readonly [data-co-approve],
body.is-readonly [data-co-decline],
body.is-readonly #composer-form,
body.is-readonly #new-thread-btn,
body.is-readonly .dropzone,
body.is-readonly #browse-btn {
  display: none !important;
}

/* ---------------- Responsive breakpoint ---------------- */
@media (max-width: 768px) {
  .sidebar { display: none; }
  .topbar { display: flex; }
  .tabbar { display: block; }
  .view-content { padding: var(--space-5) var(--space-4) calc(var(--tabbar-height) + var(--space-8)); }
  .app-shell { flex-direction: column; }
}

/* ---- signature pad + e-sign consent + formal CO doc link ---- */
.sigpad-wrap {
  position: relative;
  border: 1px dashed var(--color-border-strong, var(--color-border-default));
  border-radius: var(--radius, 12px);
  background: var(--color-surface-card, #fff);
}
.sigpad-canvas {
  display: block;
  width: 100%;
  height: 140px;
  touch-action: none;
  cursor: crosshair;
  border-radius: inherit;
}
.sigpad-clear {
  position: absolute;
  top: 6px;
  right: 8px;
  font-size: 12px;
  padding: 2px 10px;
  border: 1px solid var(--color-border-default);
  border-radius: 999px;
  background: var(--color-surface-card, #fff);
  color: var(--color-text-secondary);
  cursor: pointer;
}
.modal-consent {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 13px;
  color: var(--color-text-secondary);
  margin: 12px 0 4px;
  cursor: pointer;
}
.modal-consent input { margin-top: 3px; }
.co-doc-link, .modal-document .co-doc-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 8px 0 12px;
  padding: 10px 14px;
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius, 12px);
  background: var(--color-surface-sunken, #f5f2ec);
  color: var(--color-text, inherit);
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
  transition: border-color 180ms ease;
}
.co-doc-link:hover { border-color: var(--color-border-strong, var(--color-border-default)); }
.co-doc-icon { font-weight: 700; }

/* ---- shared attachment strip ---- */
.attach-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 10px 0 6px;
}
.attach-thumb {
  display: block;
  width: 92px;
  height: 92px;
  border-radius: var(--radius-sm, 8px);
  overflow: hidden;
  border: 1px solid var(--color-border-default);
  transition: transform 180ms ease, box-shadow 180ms ease;
}
.attach-thumb:hover { transform: scale(1.03); box-shadow: var(--shadow, 0 2px 10px rgba(0,0,0,.08)); }
.attach-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.attach-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  font-size: 13px;
  font-weight: 600;
  border: 1px solid var(--color-border-default);
  border-radius: 999px;
  background: var(--color-surface-sunken, #f5f2ec);
  color: var(--color-text, inherit);
  text-decoration: none;
}