/* UltraBill Design System */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* ─── Theme Variables ─── */
:root {
  --brand: #0EA5E9;
  --brand-hover: #0284C7;
  --brand-light: rgba(14, 165, 233, 0.12);
  --brand-ring: rgba(14, 165, 233, 0.35);

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', monospace;

  --radius-sm: 5px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  --shadow-xs: 0 1px 2px rgba(0,0,0,.04);
  --shadow-sm: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,.08);
  --shadow-lg: 0 12px 32px rgba(0,0,0,.12);
  --shadow-xl: 0 24px 48px rgba(0,0,0,.16);

  --sidebar-width: 240px;
  --topbar-height: 56px;
  --mobile-nav-height: 56px;
  --transition: 180ms cubic-bezier(.4,0,.2,1);

  /* Light theme */
  --bg-base: #F8FAFC;
  --bg-surface: #FFFFFF;
  --bg-elevated: #FFFFFF;
  --bg-muted: #F1F5F9;
  --bg-subtle: #E2E8F0;
  --bg-sidebar: #FFFFFF;
  --bg-input: #FFFFFF;
  --bg-hover: rgba(15,23,42,.04);
  --bg-active: rgba(14,165,233,.08);

  --text-primary: #0F172A;
  --text-secondary: #475569;
  --text-muted: #94A3B8;
  --text-inverse: #FFFFFF;
  --text-link: var(--brand);

  --border: #E2E8F0;
  --border-strong: #CBD5E1;
  --border-focus: var(--brand);

  --success: #10B981;
  --success-bg: rgba(16,185,129,.1);
  --warning: #F59E0B;
  --warning-bg: rgba(245,158,11,.1);
  --danger: #EF4444;
  --danger-bg: rgba(239,68,68,.1);
  --info: #6366F1;
  --info-bg: rgba(99,102,241,.1);

  --chart-grid: rgba(148,163,184,.2);
  --chart-text: #64748B;
  --skeleton: #E2E8F0;
  --overlay: rgba(15,23,42,.5);
  --scrollbar: #CBD5E1;
}

[data-theme="dark"] {
  --bg-base: #0B1120;
  --bg-surface: #111827;
  --bg-elevated: #1E293B;
  --bg-muted: #1E293B;
  --bg-subtle: #334155;
  --bg-sidebar: #111827;
  --bg-input: #1E293B;
  --bg-hover: rgba(255,255,255,.05);
  --bg-active: rgba(14,165,233,.15);

  --text-primary: #F1F5F9;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --text-inverse: #0F172A;

  --border: #1E293B;
  --border-strong: #334155;

  --success-bg: rgba(16,185,129,.15);
  --warning-bg: rgba(245,158,11,.15);
  --danger-bg: rgba(239,68,68,.15);
  --info-bg: rgba(99,102,241,.15);

  --chart-grid: rgba(100,116,139,.25);
  --chart-text: #94A3B8;
  --skeleton: #334155;
  --overlay: rgba(0,0,0,.65);
  --scrollbar: #475569;

  --shadow-xs: 0 1px 2px rgba(0,0,0,.2);
  --shadow-sm: 0 1px 3px rgba(0,0,0,.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,.35);
  --shadow-lg: 0 12px 32px rgba(0,0,0,.45);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg-base: #0B1120;
    --bg-surface: #111827;
    --bg-elevated: #1E293B;
    --bg-muted: #1E293B;
    --bg-subtle: #334155;
    --bg-sidebar: #111827;
    --bg-input: #1E293B;
    --bg-hover: rgba(255,255,255,.05);
    --bg-active: rgba(14,165,233,.15);
    --text-primary: #F1F5F9;
    --text-secondary: #94A3B8;
    --text-muted: #64748B;
    --border: #1E293B;
    --border-strong: #334155;
    --success-bg: rgba(16,185,129,.15);
    --warning-bg: rgba(245,158,11,.15);
    --danger-bg: rgba(239,68,68,.15);
    --info-bg: rgba(99,102,241,.15);
    --chart-grid: rgba(100,116,139,.25);
    --chart-text: #94A3B8;
    --skeleton: #334155;
    --overlay: rgba(0,0,0,.65);
    --scrollbar: #475569;
    --shadow-xs: 0 1px 2px rgba(0,0,0,.2);
    --shadow-sm: 0 1px 3px rgba(0,0,0,.3);
    --shadow-md: 0 4px 12px rgba(0,0,0,.35);
    --shadow-lg: 0 12px 32px rgba(0,0,0,.45);
  }
}

/* ─── Reset & Base ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 15px; -webkit-font-smoothing: antialiased; scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100dvh;
  font-size: .9375rem;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--text-link); text-decoration: none; }
a:hover { color: var(--brand-hover); }
button, input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--brand-ring); outline-offset: 2px; }
::selection { background: var(--brand-light); }

/* Scrollbar */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--scrollbar); border-radius: var(--radius-full); }

/* ─── Typography ─── */
.text-xs { font-size: .75rem; line-height: 1.45; }
.text-sm { font-size: .875rem; line-height: 1.5; }
.text-base { font-size: 1rem; line-height: 1.55; }
.text-lg { font-size: 1.125rem; line-height: 1.45; }
.text-xl { font-size: 1.25rem; line-height: 1.4; }
.text-2xl { font-size: 1.5rem; line-height: 1.3; }
.text-3xl { font-size: 1.875rem; line-height: 1.25; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.text-primary { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.text-brand { color: var(--brand); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

h1, .h1 { font-size: 1.4rem; font-weight: 700; letter-spacing: -.02em; color: var(--text-primary); line-height: 1.25; }
h2, .h2 { font-size: 1.15rem; font-weight: 600; letter-spacing: -.015em; color: var(--text-primary); line-height: 1.3; }
h3, .h3 { font-size: 1rem; font-weight: 600; color: var(--text-primary); line-height: 1.35; }
h4, .h4 { font-size: .9375rem; font-weight: 600; color: var(--text-primary); }
p { color: var(--text-secondary); line-height: 1.55; font-size: .9375rem; }
.card p, .card__body p { color: var(--text-secondary); }
.card h3, .card__body h3 { margin-bottom: .35rem; }
code {
  font-family: var(--font-mono);
  font-size: .85em;
  background: var(--bg-muted);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: .1rem .35rem;
  color: var(--text-primary);
  word-break: break-all;
}

/* ─── Layout ─── */
.app-shell { display: flex; min-height: 100dvh; }
.app-main { flex: 1; display: flex; flex-direction: column; min-width: 0; margin-left: var(--sidebar-width); transition: margin-left var(--transition); }
.app-content { flex: 1; padding: 1.125rem 1.25rem; max-width: 1320px; width: 100%; margin: 0 auto; }
.page-header { display: flex; align-items: flex-start; justify-content: space-between; gap: .75rem; margin-bottom: 1rem; flex-wrap: wrap; }
.page-header__title { display: flex; flex-direction: column; gap: .25rem; }
.page-header__actions { display: flex; align-items: center; gap: .5rem; flex-wrap: wrap; }
.grid { display: grid; gap: .75rem; }
.grid-1 { grid-template-columns: 1fr; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: .25rem; }
.gap-2 { gap: .5rem; }
.gap-3 { gap: .75rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.mt-1 { margin-top: .25rem; }
.mt-2 { margin-top: .5rem; }
.mt-4 { margin-top: .75rem; }
.mt-6 { margin-top: 1rem; }
.mb-4 { margin-bottom: .75rem; }
.mb-6 { margin-bottom: 1rem; }
.w-full { width: 100%; }
.hidden { display: none !important; }

/* ─── Sidebar ─── */
.sidebar {
  position: fixed; top: 0; left: 0; bottom: 0; width: var(--sidebar-width);
  background: var(--bg-sidebar); border-right: 1px solid var(--border);
  display: flex; flex-direction: column; z-index: 40;
  transition: transform var(--transition);
}
.sidebar__brand {
  display: flex; align-items: center; gap: .625rem;
  padding: 1rem 1rem .75rem; font-weight: 700; font-size: 1rem;
  color: var(--text-primary);
}
.sidebar__logo {
  width: 32px; height: 32px; border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--brand), #38BDF8);
  display: flex; align-items: center; justify-content: center;
  color: white; font-weight: 700; font-size: .875rem;
}
.sidebar__nav { flex: 1; overflow-y: auto; padding: .5rem .75rem; }
.sidebar__section { margin-bottom: 1rem; }
.sidebar__label {
  font-size: .6875rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: .06em; color: var(--text-muted); padding: .5rem .75rem;
}
.sidebar__link {
  display: flex; align-items: center; gap: .625rem;
  padding: .4375rem .625rem; border-radius: var(--radius-md);
  color: var(--text-secondary); font-size: .8125rem; font-weight: 500;
  transition: all var(--transition);
}
.sidebar__link:hover { background: var(--bg-hover); color: var(--text-primary); }
.sidebar__link.active { background: var(--bg-active); color: var(--brand); }
.sidebar__link svg { width: 17px; height: 17px; flex-shrink: 0; opacity: .75; }
.sidebar__link.active svg { opacity: 1; }
.sidebar__footer { padding: 1rem .75rem; border-top: 1px solid var(--border); }

/* ─── Topbar ─── */
.topbar {
  position: sticky; top: 0; z-index: 30;
  height: var(--topbar-height); background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; padding: 0 1.25rem; gap: .75rem;
}
.topbar__toggle {
  display: none; background: none; border: none; cursor: pointer;
  padding: .5rem; border-radius: var(--radius-md); color: var(--text-secondary);
}
.topbar__toggle:hover { background: var(--bg-hover); }
.topbar__search {
  flex: 1; max-width: 420px; position: relative;
}
.topbar__search input {
  width: 100%; padding: .375rem .75rem .375rem 2.125rem;
  background: var(--bg-muted); border: 1px solid transparent;
  border-radius: var(--radius-md); font-size: .8125rem;
  transition: all var(--transition);
}
.topbar__search input:focus {
  background: var(--bg-input); border-color: var(--border-strong);
  box-shadow: 0 0 0 2px var(--brand-ring);
}
.topbar__search-icon {
  position: absolute; left: .75rem; top: 50%; transform: translateY(-50%);
  color: var(--text-muted); pointer-events: none;
}
.topbar__search kbd {
  position: absolute; right: .75rem; top: 50%; transform: translateY(-50%);
  font-size: .6875rem; padding: .125rem .375rem; border-radius: 4px;
  background: var(--bg-subtle); color: var(--text-muted); font-family: var(--font-sans);
}
.topbar__actions { display: flex; align-items: center; gap: .25rem; margin-left: auto; }
.topbar__btn {
  position: relative; background: none; border: none; cursor: pointer;
  padding: .5rem; border-radius: var(--radius-md); color: var(--text-secondary);
  transition: all var(--transition);
}
.topbar__btn:hover { background: var(--bg-hover); color: var(--text-primary); }
.topbar__badge {
  position: absolute; top: 4px; right: 4px; width: 8px; height: 8px;
  background: var(--danger); border-radius: var(--radius-full);
  border: 2px solid var(--bg-surface);
}

/* ─── Workspace Selector ─── */
.workspace-select { position: relative; }
.workspace-select__trigger {
  display: flex; align-items: center; gap: .5rem;
  padding: .375rem .625rem; border-radius: var(--radius-md);
  border: 1px solid var(--border); background: var(--bg-surface);
  cursor: pointer; font-size: .875rem; font-weight: 500;
  transition: all var(--transition);
}
.workspace-select__trigger:hover { border-color: var(--border-strong); }
.workspace-select__avatar {
  width: 28px; height: 28px; border-radius: var(--radius-sm);
  background: var(--brand-light); color: var(--brand);
  display: flex; align-items: center; justify-content: center;
  font-size: .6875rem; font-weight: 700;
}
.workspace-select__menu {
  position: absolute; top: calc(100% + 4px); left: 0; min-width: 220px;
  background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: var(--radius-lg); box-shadow: var(--shadow-lg);
  padding: .375rem; z-index: 50; opacity: 0; visibility: hidden;
  transform: translateY(-4px); transition: all var(--transition);
}
.workspace-select.open .workspace-select__menu {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.workspace-select__item {
  display: flex; align-items: center; gap: .5rem;
  padding: .5rem .625rem; border-radius: var(--radius-md);
  font-size: .875rem; cursor: pointer; color: var(--text-primary);
}
.workspace-select__item:hover { background: var(--bg-hover); }
.workspace-select__item.active { background: var(--bg-active); color: var(--brand); }

/* ─── User Menu ─── */
.user-menu { position: relative; }
.user-menu__trigger {
  display: flex; align-items: center; gap: .5rem;
  padding: .25rem .5rem .25rem .25rem; border-radius: var(--radius-full);
  border: none; background: none; cursor: pointer;
  transition: all var(--transition);
}
.user-menu__trigger:hover { background: var(--bg-hover); }
.user-menu__avatar {
  width: 32px; height: 32px; border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--brand), #38BDF8);
  color: white; display: flex; align-items: center; justify-content: center;
  font-size: .75rem; font-weight: 600;
}
.user-menu__dropdown {
  position: absolute; top: calc(100% + 4px); right: 0; min-width: 200px;
  background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: var(--radius-lg); box-shadow: var(--shadow-lg);
  padding: .375rem; z-index: 50; opacity: 0; visibility: hidden;
  transform: translateY(-4px); transition: all var(--transition);
}
.user-menu.open .user-menu__dropdown {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.user-menu__header { padding: .625rem .75rem; border-bottom: 1px solid var(--border); margin-bottom: .25rem; }
.user-menu__item {
  display: flex; align-items: center; gap: .625rem;
  padding: .5rem .75rem; border-radius: var(--radius-md);
  font-size: .875rem; color: var(--text-primary); cursor: pointer;
  background: none; border: none; width: 100%; text-align: left;
}
.user-menu__item:hover { background: var(--bg-hover); }
.user-menu__item.danger { color: var(--danger); }

/* ─── Mobile Nav ─── */
.mobile-nav {
  display: none; position: fixed; bottom: 0; left: 0; right: 0;
  height: var(--mobile-nav-height); background: var(--bg-surface);
  border-top: 1px solid var(--border); z-index: 40;
  padding: 0 .5rem; padding-bottom: env(safe-area-inset-bottom);
}
.mobile-nav__items { display: flex; height: 100%; align-items: center; justify-content: space-around; }
.mobile-nav__link {
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  padding: .375rem .75rem; color: var(--text-muted); font-size: .625rem; font-weight: 500;
}
.mobile-nav__link svg { width: 22px; height: 22px; }
.mobile-nav__link.active { color: var(--brand); }

/* ─── Cards ─── */
.card {
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); box-shadow: var(--shadow-xs);
}
.card__header {
  display: flex; align-items: center; justify-content: space-between;
  padding: .75rem 1rem; border-bottom: 1px solid var(--border);
}
.card__body { padding: .875rem 1rem; }
.card__footer {
  padding: .75rem 1rem; border-top: 1px solid var(--border);
  background: var(--bg-muted); border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}
.card.form-grid,
form.card {
  padding: .875rem 1rem;
}
.card:not(.form-grid):not(.stat-card):not(:has(.card__header)):not(:has(.card__body)):not(:has(.table)) {
  padding: .875rem 1rem;
}
.stat-card { padding: .875rem 1rem; }
.stat-card__label { font-size: .75rem; color: var(--text-secondary); font-weight: 500; margin-bottom: .2rem; }
.stat-card__value { font-size: 1.375rem; font-weight: 700; letter-spacing: -.02em; }
.stat-card__change { font-size: .75rem; margin-top: .2rem; display: flex; align-items: center; gap: .25rem; }
.stat-card__change.up { color: var(--success); }
.stat-card__change.down { color: var(--danger); }
.stat-card__icon {
  width: 32px; height: 32px; border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
}
.stat-card__icon.brand { background: var(--brand-light); color: var(--brand); }
.stat-card__icon.success { background: var(--success-bg); color: var(--success); }
.stat-card__icon.warning { background: var(--warning-bg); color: var(--warning); }
.stat-card__icon.danger { background: var(--danger-bg); color: var(--danger); }

/* ─── Buttons ─── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .375rem;
  padding: .4375rem .8125rem; font-size: .8125rem; font-weight: 500;
  border-radius: var(--radius-md); border: 1px solid transparent;
  cursor: pointer; transition: all var(--transition); white-space: nowrap;
  line-height: 1.35;
}
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-sm { padding: .3125rem .625rem; font-size: .75rem; }
.btn-lg { padding: .5rem 1rem; font-size: .875rem; }
.btn-primary { background: var(--brand); color: white; }
.btn-primary:hover:not(:disabled) { background: var(--brand-hover); }
.btn-secondary {
  background: var(--bg-surface); color: var(--text-primary);
  border-color: var(--border);
}
.btn-secondary:hover:not(:disabled) { background: var(--bg-muted); border-color: var(--border-strong); }
.btn-ghost { background: transparent; color: var(--text-secondary); }
.btn-ghost:hover:not(:disabled) { background: var(--bg-hover); color: var(--text-primary); }
.btn-danger { background: var(--danger); color: white; }
.btn-danger:hover:not(:disabled) { background: #DC2626; }
.btn-icon { padding: .375rem; }
.btn svg { width: 16px; height: 16px; }

/* ─── Forms ─── */
.form-group { margin-bottom: .75rem; }
.form-group label,
.form-label {
  display: block;
  font-size: .8125rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: .3rem;
}
.form-label .required { color: var(--danger); margin-left: 2px; }

.form-group input:not([type="checkbox"]):not([type="radio"]):not([type="hidden"]):not([type="file"]):not([type="color"]):not([type="submit"]):not([type="button"]),
.form-group select,
.form-group textarea,
.form-input, .form-select, .form-textarea {
  display: block;
  width: 100%;
  height: 2.125rem;
  padding: .375rem .625rem;
  background: var(--bg-input);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: .8125rem;
  line-height: 1.35;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-group textarea,
.form-textarea {
  height: auto;
  min-height: 4.5rem;
  padding: .5rem .625rem;
  resize: vertical;
  line-height: 1.45;
}
.form-group select,
.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' fill='none' stroke='%2394A3B8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m4 6 4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right .5rem center;
  padding-right: 1.75rem;
}
.form-group input::placeholder,
.form-group textarea::placeholder,
.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-muted);
  opacity: 1;
}
.form-group input:hover,
.form-group select:hover,
.form-group textarea:hover,
.form-input:hover, .form-select:hover, .form-textarea:hover {
  border-color: var(--border-strong);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus,
.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 2px var(--brand-ring);
  outline: none;
}
.form-input.error, .form-select.error, .form-textarea.error,
.form-group input.error, .form-group select.error, .form-group textarea.error {
  border-color: var(--danger);
}
.form-hint { font-size: .75rem; color: var(--text-muted); margin-top: .25rem; line-height: 1.4; }
.form-error { font-size: .75rem; color: var(--danger); margin-top: .25rem; }
.form-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: .75rem; }
.form-check { display: flex; align-items: center; gap: .45rem; font-size: .8125rem; color: var(--text-primary); }
.form-check input[type="checkbox"], .form-check input[type="radio"],
.form-group input[type="checkbox"], .form-group input[type="radio"] {
  width: .9375rem; height: .9375rem; accent-color: var(--brand); flex-shrink: 0;
}
.input-group { display: flex; }
.input-group .form-input { border-radius: var(--radius-sm) 0 0 var(--radius-sm); }
.input-group__addon {
  padding: .375rem .625rem; background: var(--bg-muted);
  border: 1px solid var(--border); border-left: none;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: .8125rem; color: var(--text-secondary);
  display: flex; align-items: center;
}

/* ─── Tables ─── */
.table-wrap { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; font-size: .8125rem; }
.table th {
  text-align: left; padding: .5rem .75rem; font-weight: 600;
  color: var(--text-secondary); font-size: .75rem;
  border-bottom: 1px solid var(--border); white-space: nowrap;
}
.table td {
  padding: .5625rem .75rem; border-bottom: 1px solid var(--border);
  color: var(--text-primary); vertical-align: middle;
}
.table tbody tr { transition: background var(--transition); }
.table tbody tr:hover { background: var(--bg-hover); }
.table tbody tr:last-child td { border-bottom: none; }
.table .actions { display: flex; gap: .25rem; justify-content: flex-end; }

/* ─── Badges ─── */
.badge {
  display: inline-flex; align-items: center; padding: .125rem .5rem;
  font-size: .75rem; font-weight: 500; border-radius: var(--radius-full);
  line-height: 1.4;
}
.badge-gray { background: var(--bg-muted); color: var(--text-secondary); }
.badge-blue { background: var(--brand-light); color: var(--brand); }
.badge-green { background: var(--success-bg); color: var(--success); }
.badge-yellow { background: var(--warning-bg); color: var(--warning); }
.badge-red { background: var(--danger-bg); color: var(--danger); }
.badge-purple { background: var(--info-bg); color: var(--info); }
.badge-orange { background: rgba(249,115,22,.1); color: #F97316; }

/* ─── Tabs ─── */
.tabs { display: flex; gap: .125rem; border-bottom: 1px solid var(--border); margin-bottom: 1rem; overflow-x: auto; }
.tab {
  padding: .5rem .75rem; font-size: .8125rem; font-weight: 500;
  color: var(--text-secondary); border: none; background: none;
  cursor: pointer; border-bottom: 2px solid transparent;
  margin-bottom: -1px; white-space: nowrap; transition: all var(--transition);
}
.tab:hover { color: var(--text-primary); }
.tab.active { color: var(--brand); border-bottom-color: var(--brand); }

/* ─── Modals ─── */
.modal-overlay {
  position: fixed; inset: 0; background: var(--overlay);
  z-index: 100; display: flex; align-items: center; justify-content: center;
  padding: 1rem; opacity: 0; visibility: hidden; transition: all var(--transition);
}
.modal-overlay.open { opacity: 1; visibility: visible; }
.modal {
  background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: var(--radius-xl); box-shadow: var(--shadow-xl);
  width: 100%; max-width: 480px; max-height: 90dvh; overflow-y: auto;
  transform: scale(.95) translateY(8px); transition: transform var(--transition);
}
.modal-overlay.open .modal { transform: scale(1) translateY(0); }
.modal-lg { max-width: 640px; }
.modal__header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.25rem 1.5rem; border-bottom: 1px solid var(--border);
}
.modal__body { padding: 1.5rem; }
.modal__footer {
  display: flex; justify-content: flex-end; gap: .5rem;
  padding: 1rem 1.5rem; border-top: 1px solid var(--border);
}

/* ─── Toasts ─── */
.toast-container {
  position: fixed; top: 1rem; right: 1rem; z-index: 200;
  display: flex; flex-direction: column; gap: .5rem; pointer-events: none;
}
.toast {
  display: flex; align-items: flex-start; gap: .75rem;
  padding: .875rem 1rem; background: var(--bg-elevated);
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg); min-width: 300px; max-width: 420px;
  pointer-events: auto; animation: toast-in .3s ease;
}
.toast.success { border-left: 3px solid var(--success); }
.toast.error { border-left: 3px solid var(--danger); }
.toast.warning { border-left: 3px solid var(--warning); }
.toast.info { border-left: 3px solid var(--brand); }
.toast__message { flex: 1; font-size: .875rem; }
.toast__close {
  background: none; border: none; cursor: pointer;
  color: var(--text-muted); padding: 0; line-height: 1;
}
@keyframes toast-in {
  from { opacity: 0; transform: translateX(100%); }
  to { opacity: 1; transform: translateX(0); }
}

/* ─── Alerts ─── */
.alert {
  display: flex; align-items: flex-start; gap: .5rem;
  padding: .625rem .75rem; border-radius: var(--radius-md);
  font-size: .8125rem; margin-bottom: .75rem;
}
.alert-success { background: var(--success-bg); color: var(--success); border: 1px solid rgba(16,185,129,.2); }
.alert-error { background: var(--danger-bg); color: var(--danger); border: 1px solid rgba(239,68,68,.2); }
.alert-warning { background: var(--warning-bg); color: var(--warning); border: 1px solid rgba(245,158,11,.2); }
.alert-info { background: var(--brand-light); color: var(--brand); border: 1px solid rgba(14,165,233,.2); }

/* ─── Empty State ─── */
.empty-state {
  text-align: center; padding: 2rem 1rem;
}
.empty-state__icon {
  width: 48px; height: 48px; margin: 0 auto .75rem;
  background: var(--bg-muted); border-radius: var(--radius-full);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted);
}
.empty-state__title { font-size: 1rem; font-weight: 600; margin-bottom: .25rem; }
.empty-state__desc { color: var(--text-secondary); font-size: .8125rem; max-width: 320px; margin: 0 auto 1rem; }

/* ─── Skeleton ─── */
.skeleton {
  background: linear-gradient(90deg, var(--skeleton) 25%, var(--bg-muted) 50%, var(--skeleton) 75%);
  background-size: 200% 100%; animation: skeleton-pulse 1.5s ease-in-out infinite;
  border-radius: var(--radius-sm);
}
.skeleton-text { height: 14px; margin-bottom: .5rem; }
.skeleton-title { height: 24px; width: 60%; margin-bottom: .75rem; }
.skeleton-avatar { width: 40px; height: 40px; border-radius: var(--radius-full); }
@keyframes skeleton-pulse {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ─── Pagination ─── */
.pagination { display: flex; align-items: center; gap: .25rem; justify-content: center; margin-top: 1.5rem; }
.pagination__btn {
  display: flex; align-items: center; justify-content: center;
  min-width: 36px; height: 36px; padding: 0 .5rem;
  border: 1px solid var(--border); border-radius: var(--radius-md);
  background: var(--bg-surface); color: var(--text-secondary);
  font-size: .875rem; cursor: pointer; transition: all var(--transition);
}
.pagination__btn:hover:not(:disabled) { background: var(--bg-hover); color: var(--text-primary); }
.pagination__btn.active { background: var(--brand); color: white; border-color: var(--brand); }
.pagination__btn:disabled { opacity: .4; cursor: not-allowed; }

/* ─── Charts ─── */
.chart-container {
  position: relative; height: 280px; padding: .5rem;
}
.chart-container canvas { max-height: 100%; }

/* ─── Invoice Builder ─── */
.invoice-builder { display: grid; grid-template-columns: 1fr 380px; gap: 1.5rem; align-items: start; }
.invoice-builder__form { min-width: 0; }
.invoice-builder__preview {
  position: sticky; top: calc(var(--topbar-height) + 1rem);
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); overflow: hidden;
}
.invoice-preview { padding: 1.5rem; font-size: .8125rem; }
.invoice-preview__header { display: flex; justify-content: space-between; margin-bottom: 1.5rem; }
.invoice-preview__brand { font-weight: 700; font-size: 1rem; color: var(--brand); }
.invoice-preview__meta { text-align: right; color: var(--text-secondary); }
.invoice-preview__parties { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 1.5rem; }
.invoice-preview__party-label { font-size: .6875rem; text-transform: uppercase; letter-spacing: .05em; color: var(--text-muted); margin-bottom: .25rem; }
.line-items-table { width: 100%; font-size: .8125rem; margin-bottom: 1rem; }
.line-items-table th { padding: .5rem; border-bottom: 1px solid var(--border); text-align: left; font-weight: 600; color: var(--text-secondary); }
.line-items-table td { padding: .5rem; border-bottom: 1px solid var(--border); }
.line-items-table .num { text-align: right; }
.invoice-preview__totals { margin-left: auto; width: 200px; }
.invoice-preview__total-row { display: flex; justify-content: space-between; padding: .25rem 0; }
.invoice-preview__total-row.grand { font-weight: 700; font-size: 1rem; border-top: 2px solid var(--border); padding-top: .5rem; margin-top: .25rem; }
.line-item-row { display: grid; grid-template-columns: 1fr 80px 100px 100px 40px; gap: .5rem; align-items: start; margin-bottom: .5rem; }
.line-item-row .form-input { padding: .375rem .5rem; font-size: .8125rem; }

.invoice-totals {
  width: 100%;
  margin-top: 1.25rem;
  padding: 1.25rem 1.5rem;
  background: var(--bg-muted);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .75rem 2rem;
}
.invoice-totals__row {
  display: grid;
  grid-template-columns: minmax(7rem, 1fr) minmax(7rem, auto);
  align-items: center;
  gap: 1rem;
  min-height: 2.5rem;
  padding: .35rem 0;
}
.invoice-totals__label {
  color: var(--text-secondary);
  font-size: .9375rem;
}
.invoice-totals__value {
  text-align: right;
  font-variant-numeric: tabular-nums;
  font-size: .9375rem;
  font-weight: 500;
}
.invoice-totals__input {
  width: 100%;
  max-width: 8rem;
  justify-self: end;
  padding: .5rem .65rem;
  text-align: right;
}
.invoice-totals__row--total {
  grid-column: 1 / -1;
  margin-top: .25rem;
  padding-top: .85rem;
  border-top: 2px solid var(--border);
  font-weight: 700;
}
.invoice-totals__row--total .invoice-totals__label,
.invoice-totals__row--total .invoice-totals__value {
  color: var(--text);
  font-size: 1.125rem;
}

@media (max-width: 640px) {
  .invoice-totals {
    grid-template-columns: 1fr;
    gap: .35rem;
    padding: 1rem;
  }
}

.product-picker {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  align-items: center;
  margin-bottom: 1rem;
  padding: .75rem;
  background: var(--bg-muted);
  border: 1px dashed var(--border);
  border-radius: var(--radius-md);
}
.product-picker__select {
  flex: 1;
  min-width: 220px;
}
.product-picker__hint {
  width: 100%;
  margin: 0;
  font-size: .75rem;
  color: var(--text-muted);
}

/* ─── Onboarding Wizard ─── */
.wizard { max-width: 640px; margin: 0 auto; }
.wizard__steps { display: flex; gap: .5rem; margin-bottom: 2rem; }
.wizard__step {
  flex: 1; height: 4px; border-radius: var(--radius-full);
  background: var(--bg-subtle); transition: background var(--transition);
}
.wizard__step.done { background: var(--brand); }
.wizard__step.active { background: var(--brand); opacity: .6; }

/* ─── Auth Layout ─── */
.auth-body {
  font-family: 'Plus Jakarta Sans', var(--font-sans);
}
.auth-layout {
  position: relative;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  overflow: hidden;
  background:
    radial-gradient(1200px 600px at 50% -10%, rgba(14, 165, 233, 0.16), transparent 55%),
    radial-gradient(800px 500px at 100% 100%, rgba(14, 165, 233, 0.08), transparent 50%),
    radial-gradient(700px 420px at 0% 80%, rgba(2, 132, 199, 0.07), transparent 45%),
    var(--bg-base);
}
.auth-layout__glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(64px);
  pointer-events: none;
  opacity: .55;
  animation: auth-drift 18s ease-in-out infinite alternate;
}
.auth-layout__glow--one {
  width: 28rem;
  height: 28rem;
  top: -8rem;
  left: calc(50% - 14rem);
  background: rgba(56, 189, 248, 0.35);
}
.auth-layout__glow--two {
  width: 22rem;
  height: 22rem;
  bottom: -6rem;
  right: 8%;
  background: rgba(14, 165, 233, 0.22);
  animation-delay: -6s;
  animation-duration: 22s;
}
.auth-layout__grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .4;
  background-image:
    linear-gradient(rgba(148, 163, 184, 0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, 0.12) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 45%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 45%, #000 20%, transparent 75%);
}
.auth-layout__panel {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 400px;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  animation: auth-rise .55s cubic-bezier(.22, 1, .36, 1) both;
}
.auth-layout__panel--wide { max-width: 560px; }
.auth-layout__brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .75rem;
  margin-bottom: 1.75rem;
  text-decoration: none;
  color: inherit;
}
.auth-layout__brand:hover { text-decoration: none; }
.auth-layout__logo {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: linear-gradient(145deg, #38BDF8 0%, var(--brand) 45%, #0284C7 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: -.02em;
  box-shadow:
    0 10px 24px rgba(14, 165, 233, 0.28),
    inset 0 1px 0 rgba(255, 255, 255, 0.35);
}
.auth-layout__name {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -.04em;
  color: var(--text-primary);
  line-height: 1;
}
.auth-layout__footer {
  margin-top: 1.5rem;
  text-align: center;
  font-size: .75rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: .35rem .5rem;
}
.auth-layout__footer a {
  color: var(--text-secondary);
  text-decoration: none;
}
.auth-layout__footer a:hover { color: var(--brand); }
.auth-layout__footer-sep {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--text-muted);
  opacity: .55;
}
.auth-card {
  background: var(--bg-surface);
  background: color-mix(in srgb, var(--bg-surface) 92%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border: 1px solid color-mix(in srgb, var(--border) 85%, transparent);
  border-radius: 18px;
  padding: 1.75rem 1.5rem 1.5rem;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.6) inset,
    0 18px 40px rgba(15, 23, 42, 0.08);
}
.auth-layout__panel > .alert { margin-bottom: 1rem; }
[data-theme="dark"] .auth-card {
  background: color-mix(in srgb, var(--bg-surface) 88%, transparent);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.04) inset,
    0 18px 40px rgba(0, 0, 0, 0.35);
}
.auth-card__header {
  text-align: center;
  margin-bottom: 1.35rem;
}
.auth-card__title {
  font-size: 1.375rem;
  font-weight: 700;
  letter-spacing: -.03em;
  color: var(--text-primary);
  line-height: 1.25;
  margin: 0 0 .35rem;
}
.auth-card__subtitle {
  margin: 0;
  font-size: .875rem;
  color: var(--text-secondary);
  line-height: 1.45;
}
.auth-card__form .form-group { margin-bottom: 1rem; }
.auth-card__form .form-label { margin-bottom: .35rem; }
.auth-card__form .form-input,
.auth-card__form .form-group input:not([type="checkbox"]):not([type="radio"]):not([type="hidden"]) {
  height: 2.5rem;
  padding: .5rem .75rem;
  border-radius: 10px;
  font-size: .875rem;
}
.auth-card__label-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: .75rem;
  margin-bottom: .35rem;
}
.auth-card__label-row .form-label { margin-bottom: 0; }
.auth-card__link {
  font-size: .75rem;
  font-weight: 600;
  color: var(--brand);
  text-decoration: none;
  white-space: nowrap;
}
.auth-card__link:hover { color: var(--brand-hover); text-decoration: underline; }
.auth-card__remember {
  margin: .15rem 0 1.15rem;
  color: var(--text-secondary);
}
.auth-card__submit {
  height: 2.625rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: .875rem;
  letter-spacing: -.01em;
  box-shadow: 0 8px 20px rgba(14, 165, 233, 0.28);
}
.auth-card__submit:hover:not(:disabled) {
  box-shadow: 0 10px 24px rgba(14, 165, 233, 0.35);
  transform: translateY(-1px);
}
.auth-card__switch {
  margin: 1.25rem 0 0;
  text-align: center;
  font-size: .8125rem;
  color: var(--text-muted);
}
.auth-card__switch a {
  font-weight: 600;
  color: var(--text-primary);
  text-decoration: none;
}
.auth-card__switch a:hover { color: var(--brand); }

@keyframes auth-rise {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes auth-drift {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to { transform: translate3d(4%, 6%, 0) scale(1.06); }
}

@media (prefers-reduced-motion: reduce) {
  .auth-layout__panel,
  .auth-layout__glow,
  .auth-card__submit { animation: none; transform: none; }
}

/* ─── Public Layout ─── */
.public-layout { min-height: 100dvh; background: var(--bg-base); }
.public-header {
  background: var(--bg-surface); border-bottom: 1px solid var(--border);
  padding: 1rem 1.5rem; display: flex; align-items: center; justify-content: space-between;
}
.public-document {
  max-width: 760px; margin: 1.25rem auto; padding: 0 1rem;
}
.public-document__paper {
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 1.5rem; box-shadow: var(--shadow-sm);
}
.public-actions {
  display: flex; gap: .5rem; justify-content: center; margin-top: 1rem; flex-wrap: wrap;
}

/* ─── Setup Layout ─── */
.setup-layout {
  min-height: 100dvh; display: flex; flex-direction: column;
  align-items: center; justify-content: center; padding: 1.25rem;
}
.setup-card {
  width: 100%; max-width: 520px;
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 1.25rem; box-shadow: var(--shadow-sm);
}

/* ─── Dropdown (generic) ─── */
.dropdown { position: relative; }
.dropdown__menu {
  position: absolute; top: calc(100% + 4px); right: 0; min-width: 180px;
  background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: var(--radius-lg); box-shadow: var(--shadow-lg);
  padding: .375rem; z-index: 50; opacity: 0; visibility: hidden;
  transform: translateY(-4px); transition: all var(--transition);
}
.dropdown.open .dropdown__menu { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown__item {
  display: block; padding: .5rem .75rem; border-radius: var(--radius-md);
  font-size: .875rem; color: var(--text-primary); cursor: pointer;
  background: none; border: none; width: 100%; text-align: left;
}
.dropdown__item:hover { background: var(--bg-hover); }

/* ─── Theme Toggle ─── */
.theme-toggle { display: flex; background: var(--bg-muted); border-radius: var(--radius-md); padding: 2px; }
.theme-toggle__btn {
  padding: .375rem .5rem; border: none; background: none; cursor: pointer;
  border-radius: var(--radius-sm); color: var(--text-muted); transition: all var(--transition);
  display: flex; align-items: center; justify-content: center;
}
.theme-toggle__btn.active { background: var(--bg-surface); color: var(--text-primary); box-shadow: var(--shadow-xs); }
.theme-toggle__btn svg { width: 16px; height: 16px; }

/* ─── Search Modal ─── */
.search-modal .modal { max-width: 560px; }
.search-modal__input {
  width: 100%; padding: .75rem 1rem; font-size: 1rem;
  background: var(--bg-muted); border: 1px solid var(--border);
  border-radius: var(--radius-md); margin-bottom: 1rem;
}
.search-modal__results { max-height: 320px; overflow-y: auto; }
.search-modal__result {
  display: flex; align-items: center; gap: .75rem;
  padding: .625rem .75rem; border-radius: var(--radius-md); cursor: pointer;
}
.search-modal__result:hover { background: var(--bg-hover); }

/* ─── Detail View ─── */
.detail-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 1.5rem; }
.detail-meta { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.detail-meta__item label { display: block; font-size: .75rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: .04em; margin-bottom: .125rem; }
.detail-meta__item span { font-size: .875rem; font-weight: 500; }

/* ─── Responsive ─── */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .invoice-builder { grid-template-columns: 1fr; }
  .invoice-builder__preview { position: static; }
  .detail-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  :root { --sidebar-width: 0px; }
  .sidebar { transform: translateX(-260px); width: 260px; }
  .sidebar.open { transform: translateX(0); box-shadow: var(--shadow-xl); }
  .sidebar-backdrop {
    position: fixed; inset: 0; background: var(--overlay); z-index: 35;
    opacity: 0; visibility: hidden; transition: all var(--transition);
  }
  .sidebar-backdrop.open { opacity: 1; visibility: visible; }
  .app-main { margin-left: 0; padding-bottom: var(--mobile-nav-height); }
  .topbar__toggle { display: flex; }
  .topbar__search { display: none; }
  .mobile-nav { display: block; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .auth-layout { padding: 1.25rem 1rem; }
  .auth-card { padding: 1.5rem 1.25rem 1.25rem; }
  .line-item-row { grid-template-columns: 1fr; }
  .page-header { flex-direction: column; align-items: stretch; }
  .app-content { padding: 1rem; }
}

@media (min-width: 769px) {
  .sidebar-collapsed .app-main { margin-left: 0; }
  .sidebar-collapsed .sidebar { transform: translateX(-260px); }
}

/* Settings Navigation */
.settings-nav {
  display: flex;
  gap: 0.125rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
  padding-bottom: .75rem;
  border-bottom: 1px solid var(--border);
}
.settings-nav__link {
  padding: 0.375rem 0.75rem;
  border-radius: var(--radius-md);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  transition: all var(--transition);
}
.settings-nav__link:hover { color: var(--text-primary); background: var(--bg-muted); }
.settings-nav__link.active { color: var(--brand); background: var(--brand-light); }

/* Setup / form grid (duplicate block consolidated) */
.setup-layout { min-height: 100vh; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 1.25rem; background: var(--bg-base); }
.setup-card { width: 100%; max-width: 520px; }
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: .625rem .75rem; align-items: start; }
.form-grid .full-width { grid-column: 1 / -1; }
.form-grid .form-actions { grid-column: 1 / -1; display: flex; gap: 0.5rem; margin-top: 0.25rem; flex-wrap: wrap; }
.form-grid .form-group { margin-bottom: 0; }
@media (max-width: 640px) { .form-grid { grid-template-columns: 1fr; } }

.setup-card p, .setup-content p { color: var(--text-secondary); font-size: .875rem; margin-bottom: .75rem; }
.setup-card label { color: var(--text-primary); }
.setup-content { padding: 0; }
.setup-content h2 { font-size: 1.05rem; margin-bottom: .35rem; }
.setup-content .card { border: none; box-shadow: none; padding: 0; background: transparent; }

/* ─── Client Portal ─── */
.portal-shell {
  min-height: 100dvh;
  background:
    radial-gradient(900px 420px at 50% -5%, rgba(14, 165, 233, 0.12), transparent 55%),
    var(--bg-base);
}
.portal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 1rem 1.5rem;
  background: color-mix(in srgb, var(--bg-surface) 92%, transparent);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
}
.portal-header__brand {
  display: flex;
  align-items: center;
  gap: .75rem;
}
.portal-header__logo { max-height: 36px; max-width: 140px; object-fit: contain; }
.portal-header__mark { width: 40px; height: 40px; font-size: .875rem; border-radius: 12px; }
.portal-header__name { font-weight: 700; letter-spacing: -.02em; }
.portal-header__sub { font-size: .75rem; color: var(--text-muted); }
.portal-nav {
  display: flex;
  align-items: center;
  gap: .25rem .75rem;
  flex-wrap: wrap;
}
.portal-nav a {
  font-size: .875rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  padding: .375rem .5rem;
  border-radius: 8px;
}
.portal-nav a:hover,
.portal-nav a.active { color: var(--brand); background: var(--brand-light); }
.portal-main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3rem;
}
.invoice-preview--branded { position: relative; overflow: hidden; }
.invoice-preview__accent {
  height: 5px;
  margin: -1.5rem -1.5rem 1.25rem;
}

/* ─── SaaS usage / billing ─── */
.subscription-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.usage-meters { display: flex; flex-direction: column; gap: .875rem; }
.usage-meter { width: 100%; }
.usage-bar {
  height: 8px;
  background: var(--bg-muted);
  border-radius: 999px;
  overflow: hidden;
}
.usage-bar__fill {
  height: 100%;
  border-radius: 999px;
  transition: width .25s ease;
}
.usage-bar__fill--ok { background: var(--brand); }
.usage-bar__fill--warn { background: var(--warning); }
.usage-bar__fill--danger { background: var(--danger); }
.plan-card__price { font-size: 1.5rem; font-weight: 700; margin-bottom: .5rem; }
.plan-card__features {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: .4rem;
}
.plan-card__features li::before {
  content: "✓ ";
  color: var(--success);
  font-weight: 600;
}
.plan-card--featured {
  border: 1px solid rgba(14,165,233,.35);
  box-shadow: 0 0 0 1px rgba(14,165,233,.08);
}
.text-danger { color: var(--danger); }
.mt-3 { margin-top: .75rem; }
.mb-0 { margin-bottom: 0; }
.mb-3 { margin-bottom: .75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.gap-6 { gap: 1.5rem; }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
@media (max-width: 900px) {
  .grid-3 { grid-template-columns: 1fr; }
}