/* ────────────────────────────────────────────────────────────────────────────
   Receipt Vault — Design System
   Aesthetic: Dark Archival Ledger — warm blacks, amber gold, editorial serif
   ──────────────────────────────────────────────────────────────────────────── */

/* ── Design tokens ─────────────────────────────────────────────────────────── */

:root {
  /* Color */
  --clr-bg:            #0C0B09;
  --clr-surface:       #141210;
  --clr-elevated:      #1C1A17;
  --clr-border:        #2C2822;
  --clr-border-strong: #3D382F;
  --clr-text:          #E8E0D0;
  --clr-text-2:        #9A9182;
  --clr-text-3:        #5E5A52;
  --clr-accent:        #C49A3C;
  --clr-accent-dim:    rgba(196, 154, 60, 0.2);
  --clr-accent-glow:   rgba(196, 154, 60, 0.08);
  --clr-success:       #4E8C5A;
  --clr-success-dim:   rgba(78, 140, 90, 0.15);
  --clr-danger:        #8C4A3A;
  --clr-danger-dim:    rgba(140, 74, 58, 0.15);
  --clr-warning:       #B87030;

  /* Typography */
  --font-brand:   'Cinzel', serif;
  --font-heading: 'Cormorant Garamond', Georgia, serif;
  --font-body:    'Outfit', sans-serif;
  --font-mono:    'Courier Prime', 'Courier New', monospace;

  /* Spacing */
  --sp-1:  4px;
  --sp-2:  8px;
  --sp-3:  12px;
  --sp-4:  16px;
  --sp-5:  20px;
  --sp-6:  24px;
  --sp-8:  32px;
  --sp-10: 40px;
  --sp-12: 48px;
  --sp-16: 64px;

  /* Radius */
  --r-sm: 3px;
  --r-md: 6px;
  --r-lg: 10px;

  /* Sidebar */
  --sidebar-w: 240px;

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.45, 0, 0.55, 1);
  --dur-fast: 120ms;
  --dur-normal: 200ms;
  --dur-slow: 360ms;
}

/* ── Reset & base ──────────────────────────────────────────────────────────── */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  height: 100%;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  height: 100%;
  min-height: 100dvh;
  background: var(--clr-bg);
  color: var(--clr-text);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  /* Subtle noise texture */
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  cursor: pointer;
  font-family: inherit;
  border: none;
  background: none;
}

img {
  display: block;
  max-width: 100%;
}

ul, ol {
  list-style: none;
}

input, select, textarea {
  font-family: inherit;
}

/* Utility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* ── App layout ────────────────────────────────────────────────────────────── */

#root {
  display: flex;
  height: 100dvh;
  overflow: hidden;
}

.main-content {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: var(--sp-8) var(--sp-8);
  scroll-behavior: smooth;
}

/* View entry animation */
.main-content > * {
  animation: viewEnter var(--dur-slow) var(--ease-out);
}

@keyframes viewEnter {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Sidebar ────────────────────────────────────────────────────────────────── */

.sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  background: var(--clr-surface);
  border-right: 1px solid var(--clr-border);
  display: flex;
  flex-direction: column;
  padding: var(--sp-6);
  gap: var(--sp-4);
  overflow-y: auto;
}

.sidebar__brand {
  padding: var(--sp-4) 0 var(--sp-6);
  border-bottom: 1px solid var(--clr-border);
  margin-bottom: var(--sp-2);
}

.brand-mark {
  display: block;
  font-family: var(--font-brand);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--clr-accent);
}

.brand-sub {
  display: block;
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--clr-text-3);
  margin-top: var(--sp-1);
}

.sidebar__nav {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-2) var(--sp-3);
  border-radius: var(--r-md);
  font-size: 14px;
  font-weight: 400;
  color: var(--clr-text-2);
  letter-spacing: 0.01em;
  transition: color var(--dur-fast), background var(--dur-fast);
  width: 100%;
  text-align: left;
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--clr-text);
  background: var(--clr-elevated);
  outline: none;
}

.nav-link.active {
  color: var(--clr-accent);
  background: var(--clr-accent-dim);
}

.nav-link--logout {
  margin-top: auto;
  color: var(--clr-text-3);
}

.nav-link--logout:hover {
  color: var(--clr-danger);
  background: var(--clr-danger-dim);
}

/* ── Bottom navigation (mobile) ──────────────────────────────────────────────── */

.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--clr-surface);
  border-top: 1px solid var(--clr-border);
  display: flex;
  padding-bottom: env(safe-area-inset-bottom);
  z-index: 100;
}

.bottom-nav__item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  padding: var(--sp-2) var(--sp-1) var(--sp-3);
  color: var(--clr-text-3);
  font-size: 10px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: color var(--dur-fast);
}

.bottom-nav__item:hover {
  color: var(--clr-accent);
}

/* Active page + always-on primary (SCAN) both glow amber */
.bottom-nav .bottom-nav__item.active,
.bottom-nav .bottom-nav__item--primary {
  color: var(--clr-accent);
}

.bottom-nav .bottom-nav__item--primary svg,
.bottom-nav .bottom-nav__item.active svg {
  filter: drop-shadow(0 0 5px rgba(196, 154, 60, 0.4));
}

/* ── Typography ──────────────────────────────────────────────────────────────── */

.page-title {
  font-family: var(--font-heading);
  font-size: 32px;
  font-weight: 600;
  line-height: 1.2;
  color: var(--clr-text);
  margin-bottom: var(--sp-6);
}

.section-title {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 600;
  color: var(--clr-text);
  margin-bottom: var(--sp-4);
}

.label {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-text-3);
}

.amount {
  font-family: var(--font-mono);
  font-weight: 700;
}

/* ── Buttons ────────────────────────────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: 10px var(--sp-5);
  border-radius: var(--r-md);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: all var(--dur-fast) var(--ease-out);
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
}

.btn:focus-visible {
  outline: 2px solid var(--clr-accent);
  outline-offset: 2px;
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.btn--primary {
  background: var(--clr-accent);
  color: #0C0B09;
  font-weight: 600;
  border: 1px solid var(--clr-accent);
}

.btn--primary:hover:not(:disabled) {
  background: #D4AB4E;
  box-shadow: 0 0 20px rgba(196, 154, 60, 0.3);
}

.btn--secondary {
  background: transparent;
  color: var(--clr-text-2);
  border: 1px solid var(--clr-border-strong);
}

.btn--secondary:hover:not(:disabled) {
  color: var(--clr-text);
  border-color: var(--clr-text-3);
  background: var(--clr-elevated);
}

.btn--ghost {
  background: transparent;
  color: var(--clr-text-3);
  border: 1px solid transparent;
}

.btn--ghost:hover:not(:disabled) {
  color: var(--clr-text);
  background: var(--clr-elevated);
}

.btn--danger {
  background: transparent;
  color: var(--clr-danger);
  border: 1px solid var(--clr-danger);
}

.btn--danger:hover:not(:disabled) {
  background: var(--clr-danger-dim);
}

.btn--sm {
  padding: 6px var(--sp-3);
  font-size: 13px;
}

.btn--lg {
  padding: 14px var(--sp-8);
  font-size: 15px;
}

.btn--full {
  width: 100%;
}

.btn--icon {
  padding: 8px;
  width: 36px;
  height: 36px;
}

/* ── Form elements ───────────────────────────────────────────────────────────── */

.field {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}

.field__label {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-text-3);
}

.field__input,
.field__select,
.field__textarea {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border-strong);
  border-radius: var(--r-md);
  color: var(--clr-text);
  font-size: 14px;
  padding: 10px var(--sp-3);
  transition: border-color var(--dur-fast), box-shadow var(--dur-fast);
  width: 100%;
}

.field__input:focus,
.field__select:focus,
.field__textarea:focus {
  outline: none;
  border-color: var(--clr-accent);
  box-shadow: 0 0 0 3px var(--clr-accent-dim);
}

.field__input--mono {
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

.field__select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%235E5A52' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
  cursor: pointer;
}

.field__select option {
  background: var(--clr-elevated);
  color: var(--clr-text);
}

.field__textarea {
  min-height: 80px;
  resize: vertical;
}

.field__hint {
  font-size: 12px;
  color: var(--clr-text-3);
}

.field__error {
  font-size: 12px;
  color: var(--clr-danger);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-4);
}

.form-grid--3 {
  grid-template-columns: 1fr 1fr 1fr;
}

.form-grid .span-2 {
  grid-column: span 2;
}

/* ── Cards ──────────────────────────────────────────────────────────────────── */

.card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  padding: var(--sp-6);
}

.card--elevated {
  background: var(--clr-elevated);
}

/* ── Stat cards ──────────────────────────────────────────────────────────────── */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-4);
  margin-bottom: var(--sp-8);
}

.stat-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  padding: var(--sp-5) var(--sp-6);
  position: relative;
  overflow: hidden;
}

.stat-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--clr-accent), transparent);
  opacity: 0.4;
}

.stat-card__label {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-text-3);
  margin-bottom: var(--sp-2);
}

.stat-card__value {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  color: var(--clr-text);
  line-height: 1;
}

.stat-card__value--accent {
  color: var(--clr-accent);
}

.stat-card__sub {
  font-size: 12px;
  color: var(--clr-text-3);
  margin-top: var(--sp-1);
}

/* ── Receipt list ────────────────────────────────────────────────────────────── */

.receipt-list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}

.receipt-item {
  display: grid;
  grid-template-columns: 44px 1fr auto;
  gap: var(--sp-4);
  align-items: center;
  padding: var(--sp-4) var(--sp-5);
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  cursor: pointer;
  transition: border-color var(--dur-fast), background var(--dur-fast), transform var(--dur-fast);
  text-decoration: none;
  color: inherit;
  position: relative;
}

.receipt-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--clr-accent);
  border-radius: 0 2px 2px 0;
  opacity: 0;
  transition: opacity var(--dur-fast);
}

.receipt-item:hover {
  border-color: var(--clr-border-strong);
  background: var(--clr-elevated);
  transform: translateX(2px);
}

.receipt-item:hover::before {
  opacity: 1;
}

.receipt-item__icon {
  width: 44px;
  height: 44px;
  background: var(--clr-elevated);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-text-3);
  flex-shrink: 0;
  font-size: 18px;
}

.receipt-item__body {
  min-width: 0;
}

.receipt-item__vendor {
  font-weight: 500;
  color: var(--clr-text);
  font-size: 14px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.receipt-item__meta {
  font-size: 12px;
  color: var(--clr-text-3);
  margin-top: 2px;
  display: flex;
  gap: var(--sp-2);
  align-items: center;
  flex-wrap: wrap;
}

.receipt-item__total {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--clr-text);
  text-align: right;
  white-space: nowrap;
}

.receipt-item__date {
  font-size: 11px;
  color: var(--clr-text-3);
  text-align: right;
  margin-top: 2px;
  white-space: nowrap;
}

/* ── Category badge ──────────────────────────────────────────────────────────── */

.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.03em;
  border: 1px solid currentColor;
  white-space: nowrap;
}

.badge--amber  { color: #C49A3C; background: rgba(196, 154, 60, 0.1); }
.badge--blue   { color: #4A80A0; background: rgba(74, 128, 160, 0.1); }
.badge--teal   { color: #3A8C7A; background: rgba(58, 140, 122, 0.1); }
.badge--orange { color: #B87030; background: rgba(184, 112, 48, 0.1); }
.badge--green  { color: #4E8C5A; background: rgba(78, 140, 90, 0.1); }
.badge--red    { color: #8C4A3A; background: rgba(140, 74, 58, 0.1); }
.badge--purple { color: #7A5A9A; background: rgba(122, 90, 154, 0.1); }
.badge--muted  { color: var(--clr-text-3); background: rgba(94, 90, 82, 0.15); }

/* ── Divider ────────────────────────────────────────────────────────────────── */

.divider {
  height: 1px;
  background: var(--clr-border);
  margin: var(--sp-6) 0;
}

/* ── Empty state ────────────────────────────────────────────────────────────── */

.empty-state {
  text-align: center;
  padding: var(--sp-16) var(--sp-8);
  color: var(--clr-text-3);
}

.empty-state__icon {
  font-size: 40px;
  margin-bottom: var(--sp-4);
  opacity: 0.4;
}

.empty-state__title {
  font-family: var(--font-heading);
  font-size: 20px;
  color: var(--clr-text-2);
  margin-bottom: var(--sp-2);
}

.empty-state__desc {
  font-size: 14px;
  max-width: 320px;
  margin: 0 auto var(--sp-6);
}

/* ── Filter bar ──────────────────────────────────────────────────────────────── */

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  padding: var(--sp-4);
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  margin-bottom: var(--sp-5);
}

.filter-bar .field__input,
.filter-bar .field__select {
  background: var(--clr-elevated);
  font-size: 13px;
  padding: 7px var(--sp-3);
}

.filter-bar .field__select {
  padding-right: 30px;
}

/* ── Auth view ──────────────────────────────────────────────────────────────── */

.auth-screen {
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--sp-8);
  background: var(--clr-bg);
  position: relative;
  overflow: hidden;
}

/* Decorative grid lines */
.auth-screen::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--clr-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--clr-border) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.3;
  pointer-events: none;
}

/* Amber glow at center */
.auth-screen::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(196, 154, 60, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.auth-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border-strong);
  border-radius: var(--r-lg);
  padding: var(--sp-10) var(--sp-10);
  width: 100%;
  max-width: 400px;
  position: relative;
  z-index: 1;
  box-shadow: 0 40px 80px rgba(0, 0, 0, 0.6);
}

.auth-card__brand {
  text-align: center;
  margin-bottom: var(--sp-8);
}

.auth-card__logo {
  font-family: var(--font-brand);
  font-size: 36px;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--clr-accent);
  display: block;
}

.auth-card__subtitle {
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--clr-text-3);
  margin-top: var(--sp-1);
}

.auth-card__divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--clr-border-strong), transparent);
  margin: var(--sp-6) 0;
}

/* ── Scan view ──────────────────────────────────────────────────────────────── */

.scan-view {
  max-width: 680px;
  margin: 0 auto;
}

.upload-zone {
  border: 2px dashed var(--clr-border-strong);
  border-radius: var(--r-lg);
  padding: var(--sp-12) var(--sp-8);
  text-align: center;
  cursor: pointer;
  transition: border-color var(--dur-normal), background var(--dur-normal);
  position: relative;
}

.upload-zone:hover,
.upload-zone.drag-over {
  border-color: var(--clr-accent);
  background: var(--clr-accent-glow);
}

.upload-zone__icon {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--sp-4);
  color: var(--clr-text-3);
  transition: color var(--dur-fast);
}

.upload-zone:hover .upload-zone__icon {
  color: var(--clr-accent);
}

.upload-zone__title {
  font-family: var(--font-heading);
  font-size: 22px;
  color: var(--clr-text);
  margin-bottom: var(--sp-2);
}

.upload-zone__sub {
  font-size: 13px;
  color: var(--clr-text-3);
  margin-bottom: var(--sp-6);
}

.upload-zone__actions {
  display: flex;
  gap: var(--sp-3);
  justify-content: center;
  flex-wrap: wrap;
}

/* Upload zone — files loaded state */
.upload-zone--has-files {
  padding: var(--sp-6) var(--sp-5);
  cursor: default;
}

.upload-zone--has-files:hover {
  border-color: var(--clr-border-strong);
  background: transparent;
}

/* Multi-photo thumbnail strip */
.multi-thumbs {
  display: flex;
  gap: var(--sp-3);
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: var(--sp-4);
}

.multi-thumb {
  position: relative;
  width: 80px;
  height: 100px;
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--clr-border-strong);
  background: var(--clr-surface);
  flex-shrink: 0;
}

.multi-thumb__num {
  position: absolute;
  top: 4px;
  left: 4px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(0,0,0,0.65);
  color: var(--clr-accent);
  font-size: 10px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
}

.multi-thumb__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.multi-thumb__pdf {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--clr-text-3);
  letter-spacing: 0.05em;
}

.multi-thumb__remove {
  position: absolute;
  top: 2px;
  right: 2px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(0,0,0,0.7);
  color: var(--clr-text-2);
  font-size: 9px;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 3;
  opacity: 0;
  transition: opacity var(--dur-fast);
}

.multi-thumb:hover .multi-thumb__remove {
  opacity: 1;
}

/* Always show remove button on touch devices */
@media (hover: none) {
  .multi-thumb__remove {
    opacity: 1;
  }
}

.multi-thumb--add {
  border: 2px dashed var(--clr-border-strong);
  background: transparent;
  cursor: pointer;
  color: var(--clr-text-3);
  transition: border-color var(--dur-fast), color var(--dur-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.multi-thumb--add:hover {
  border-color: var(--clr-accent);
  color: var(--clr-accent);
}

/* Preview */
.scan-preview {
  position: relative;
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  margin-bottom: var(--sp-6);
}

.scan-preview__image {
  width: 100%;
  max-height: 360px;
  object-fit: contain;
  display: block;
}

.scan-preview__overlay {
  position: absolute;
  inset: 0;
  background: rgba(12, 11, 9, 0.8);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--sp-4);
}

/* Scanning animation */
.scan-line {
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent 0%, var(--clr-accent) 20%, var(--clr-accent) 80%, transparent 100%);
  box-shadow: 0 0 16px var(--clr-accent), 0 0 32px rgba(196, 154, 60, 0.3);
  animation: scanline 2s ease-in-out infinite;
}

@keyframes scanline {
  0%   { top: 0%; opacity: 0; }
  5%   { opacity: 1; }
  95%  { opacity: 1; }
  100% { top: 100%; opacity: 0; }
}

.scan-status {
  font-size: 14px;
  font-weight: 500;
  color: var(--clr-text);
  letter-spacing: 0.05em;
}

.scan-status__dots {
  display: inline-flex;
  gap: 4px;
  margin-left: var(--sp-2);
}

.scan-status__dots span {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--clr-accent);
  animation: dotPulse 1.2s ease-in-out infinite;
}

.scan-status__dots span:nth-child(2) { animation-delay: 0.2s; }
.scan-status__dots span:nth-child(3) { animation-delay: 0.4s; }

@keyframes dotPulse {
  0%, 80%, 100% { opacity: 0.3; transform: scale(0.8); }
  40%            { opacity: 1;   transform: scale(1.2); }
}

/* Extracted data form */
.extracted-form {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  overflow: hidden;
}

.extracted-form__header {
  padding: var(--sp-4) var(--sp-6);
  border-bottom: 1px solid var(--clr-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.extracted-form__header-title {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-text-3);
}

.extracted-badge {
  font-size: 11px;
  padding: 3px 10px;
  background: var(--clr-success-dim);
  color: var(--clr-success);
  border-radius: 20px;
  font-weight: 500;
}

.extracted-form__body {
  padding: var(--sp-6);
  display: flex;
  flex-direction: column;
  gap: var(--sp-5);
}

.extracted-form__actions {
  padding: var(--sp-4) var(--sp-6);
  border-top: 1px solid var(--clr-border);
  display: flex;
  gap: var(--sp-3);
  justify-content: flex-end;
}

/* ── Detail view ────────────────────────────────────────────────────────────── */

.detail-view {
  max-width: 960px;
  margin: 0 auto;
}

.detail-layout {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: var(--sp-6);
  align-items: start;
}

.detail-image-panel {
  position: sticky;
  top: var(--sp-4);
}

.detail-image-wrap {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  overflow: hidden;
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.detail-image-wrap img {
  width: 100%;
  height: auto;
  display: block;
  cursor: zoom-in;
  transition: transform var(--dur-slow) var(--ease-out);
}

.detail-image-wrap img.zoomed {
  transform: scale(1.8);
  cursor: zoom-out;
}

.detail-image-loading {
  padding: var(--sp-12);
  color: var(--clr-text-3);
}

.detail-data-panel {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}

.detail-header {
  margin-bottom: var(--sp-2);
}

.detail-vendor {
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 600;
  color: var(--clr-text);
  margin-bottom: var(--sp-2);
}

.detail-total {
  font-family: var(--font-mono);
  font-size: 36px;
  font-weight: 700;
  color: var(--clr-accent);
  line-height: 1;
}

.detail-fields {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  overflow: hidden;
}

.detail-field {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-3) var(--sp-5);
  border-bottom: 1px solid var(--clr-border);
}

.detail-field:last-child {
  border-bottom: none;
}

.detail-field__key {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--clr-text-3);
}

.detail-field__val {
  font-size: 14px;
  color: var(--clr-text);
  text-align: right;
}

.detail-field__val--mono {
  font-family: var(--font-mono);
}

.detail-actions {
  display: flex;
  gap: var(--sp-3);
  flex-wrap: wrap;
}

/* Edit mode */
.detail-fields--edit .detail-field {
  flex-direction: column;
  align-items: stretch;
  gap: var(--sp-2);
  padding: var(--sp-4) var(--sp-5);
}

/* ── Browse view ────────────────────────────────────────────────────────────── */

.browse-view {
  max-width: 900px;
  margin: 0 auto;
}

.browse-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--sp-5);
}

.browse-count {
  font-size: 13px;
  color: var(--clr-text-3);
}

/* ── Export view ────────────────────────────────────────────────────────────── */

.export-view {
  max-width: 560px;
  margin: 0 auto;
}

.export-preview {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  padding: var(--sp-6);
  margin: var(--sp-6) 0;
  text-align: center;
}

.export-preview__count {
  font-family: var(--font-mono);
  font-size: 48px;
  font-weight: 700;
  color: var(--clr-accent);
  line-height: 1;
}

.export-preview__total {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  color: var(--clr-text);
  margin-top: var(--sp-2);
}

.export-preview__label {
  font-size: 12px;
  color: var(--clr-text-3);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: var(--sp-2);
}

/* ── Settings view ───────────────────────────────────────────────────────────── */

.settings-view {
  max-width: 560px;
  margin: 0 auto;
}

.settings-section {
  margin-bottom: var(--sp-8);
}

.settings-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-4) var(--sp-5);
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  margin-bottom: var(--sp-3);
}

.settings-row__info {
  flex: 1;
}

.settings-row__title {
  font-size: 14px;
  font-weight: 500;
  color: var(--clr-text);
}

.settings-row__desc {
  font-size: 12px;
  color: var(--clr-text-3);
  margin-top: 2px;
}

/* ── Dashboard ────────────────────────────────────────────────────────────────── */

.dashboard-view {
  max-width: 900px;
  margin: 0 auto;
}

.dashboard-cta {
  display: flex;
  gap: var(--sp-3);
  margin-bottom: var(--sp-8);
}

.dashboard-bottom-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-6);
}

.top-categories {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}

.category-row {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}

.category-row__bar-wrap {
  flex: 1;
  height: 4px;
  background: var(--clr-elevated);
  border-radius: 2px;
  overflow: hidden;
}

.category-row__bar {
  height: 100%;
  background: linear-gradient(90deg, var(--clr-accent), rgba(196, 154, 60, 0.4));
  border-radius: 2px;
  transition: width 0.8s var(--ease-out);
}

.category-row__name {
  font-size: 13px;
  color: var(--clr-text-2);
  min-width: 160px;
}

.category-row__total {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--clr-text-2);
  min-width: 80px;
  text-align: right;
}

/* ── Toast notifications ───────────────────────────────────────────────────── */

.toasts {
  position: fixed;
  bottom: calc(var(--sp-6) + env(safe-area-inset-bottom));
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  z-index: 9999;
  pointer-events: none;
  align-items: center;
}

.toast {
  background: var(--clr-elevated);
  border: 1px solid var(--clr-border-strong);
  border-radius: var(--r-lg);
  padding: var(--sp-3) var(--sp-5);
  font-size: 14px;
  color: var(--clr-text);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  pointer-events: auto;
  animation: toastIn var(--dur-slow) var(--ease-out) forwards;
  max-width: 380px;
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}

.toast--success { border-left: 3px solid var(--clr-success); }
.toast--error   { border-left: 3px solid var(--clr-danger); }
.toast--info    { border-left: 3px solid var(--clr-accent); }

.toast.toast--out {
  animation: toastOut var(--dur-normal) var(--ease-in-out) forwards;
}

@keyframes toastIn {
  from { opacity: 0; transform: translateY(12px) scale(0.95); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes toastOut {
  from { opacity: 1; transform: translateY(0) scale(1); }
  to   { opacity: 0; transform: translateY(-8px) scale(0.95); }
}

/* ── Loading spinner ────────────────────────────────────────────────────────── */

.spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2px solid var(--clr-border-strong);
  border-top-color: var(--clr-accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

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

/* ── Pagination ─────────────────────────────────────────────────────────────── */

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-3);
  margin-top: var(--sp-6);
}

.pagination__info {
  font-size: 13px;
  color: var(--clr-text-3);
}

/* ── Page header row ─────────────────────────────────────────────────────────── */

.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--sp-4);
  margin-bottom: var(--sp-8);
}

.page-header__back {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: 13px;
  color: var(--clr-text-3);
  cursor: pointer;
  padding: var(--sp-2) 0;
  transition: color var(--dur-fast);
  background: none;
  border: none;
}

.page-header__back:hover {
  color: var(--clr-accent);
}

/* ── Responsive ─────────────────────────────────────────────────────────────── */

@media (max-width: 768px) {
  .main-content {
    padding: var(--sp-5) var(--sp-4);
    padding-bottom: calc(80px + env(safe-area-inset-bottom));
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }

  .stats-grid .stat-card:last-child {
    grid-column: span 2;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .form-grid .span-2 {
    grid-column: span 1;
  }

  .detail-layout {
    grid-template-columns: 1fr;
  }

  .detail-image-panel {
    position: static;
  }

  .auth-card {
    padding: var(--sp-8) var(--sp-6);
  }

  .dashboard-cta {
    flex-direction: column;
  }

  .page-title {
    font-size: 24px;
  }
}

@media (min-width: 769px) {
  .bottom-nav { display: none !important; }
}

@media (max-width: 768px) {
  .sidebar { display: none !important; }
}

/* ── Mobile-specific improvements ────────────────────────────────────────────── */

@media (max-width: 768px) {

  /* Prevent iOS input zoom — font-size must be >= 16px */
  .field__input,
  .field__select,
  .field__textarea {
    font-size: 16px;
  }

  /* Larger touch targets throughout */
  .btn {
    min-height: 44px;
  }

  .btn--sm {
    min-height: 36px;
  }

  .nav-link,
  .receipt-item {
    min-height: 48px;
  }

  /* Dashboard: recent + categories stack */
  .dashboard-bottom-grid {
    grid-template-columns: 1fr;
  }

  /* Scan: full-width upload zone, bigger tap targets */
  .upload-zone {
    padding: var(--sp-10) var(--sp-5);
  }

  .upload-zone--has-files {
    padding: var(--sp-5);
  }

  .upload-zone__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .upload-zone__actions .btn {
    width: 100%;
    justify-content: center;
  }

  .multi-thumb {
    width: 72px;
    height: 88px;
  }

  /* Extracted form: single column */
  .form-grid,
  .form-grid--3 {
    grid-template-columns: 1fr;
  }

  .form-grid .span-2 {
    grid-column: span 1;
  }

  /* Browse: filter bar stacks vertically */
  .filter-bar {
    flex-direction: column;
    gap: var(--sp-2);
  }

  .filter-bar .field__input,
  .filter-bar .field__select {
    width: 100%;
    font-size: 16px;
  }

  /* Browse header: count + actions on same line */
  .browse-header {
    flex-wrap: wrap;
    gap: var(--sp-2);
  }

  /* Receipt items: tighter but still readable */
  .receipt-item {
    padding: var(--sp-3) var(--sp-4);
    gap: var(--sp-3);
  }

  .receipt-item__icon {
    width: 38px;
    height: 38px;
    font-size: 16px;
  }

  .receipt-item__total {
    font-size: 14px;
  }

  /* Detail: full-width image */
  .detail-image-wrap img {
    max-height: 280px;
    object-fit: contain;
  }

  .detail-vendor {
    font-size: 22px;
  }

  .detail-total {
    font-size: 28px;
  }

  .detail-actions {
    flex-direction: column;
  }

  .detail-actions .btn {
    width: 100%;
    justify-content: center;
  }

  /* Export: full-width button */
  .export-preview__count {
    font-size: 36px;
  }

  /* Page header: back button + title spacing */
  .page-header {
    flex-direction: column;
    gap: var(--sp-2);
    margin-bottom: var(--sp-5);
  }

}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 360px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .settings-row {
    flex-direction: column;
    gap: var(--sp-3);
    align-items: flex-start;
  }
}

/* ── Install banner ───────────────────────────────────────────────────────────── */

.install-banner {
  position: fixed;
  bottom: calc(70px + env(safe-area-inset-bottom));
  left: var(--sp-4);
  right: var(--sp-4);
  background: var(--clr-elevated);
  border: 1px solid var(--clr-accent);
  border-radius: var(--r-lg);
  padding: var(--sp-4) var(--sp-5);
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  z-index: 200;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5), 0 0 0 1px var(--clr-accent-dim);
  animation: toastIn var(--dur-slow) var(--ease-out);
}

@media (min-width: 769px) {
  .install-banner {
    bottom: var(--sp-6);
    max-width: 400px;
    left: auto;
    right: var(--sp-6);
  }
}

.install-banner__icon {
  font-size: 28px;
  flex-shrink: 0;
}

.install-banner__body {
  flex: 1;
  min-width: 0;
}

.install-banner__title {
  font-size: 13px;
  font-weight: 600;
  color: var(--clr-text);
}

.install-banner__desc {
  font-size: 11px;
  color: var(--clr-text-3);
  margin-top: 2px;
}

.install-banner__actions {
  display: flex;
  gap: var(--sp-2);
  flex-shrink: 0;
}

/* ── Install instructions modal ──────────────────────────────────────────────── */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: 500;
  padding: var(--sp-4);
  animation: fadeIn var(--dur-normal) ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@media (min-width: 480px) {
  .modal-overlay {
    align-items: center;
  }
}

.modal {
  background: var(--clr-elevated);
  border: 1px solid var(--clr-border-strong);
  border-radius: var(--r-lg);
  padding: var(--sp-6);
  width: 100%;
  max-width: 420px;
  animation: modalIn var(--dur-slow) var(--ease-out);
}

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

.modal__title {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 600;
  margin-bottom: var(--sp-4);
}

.install-steps {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  margin-bottom: var(--sp-5);
}

.install-step {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-3);
}

.install-step__num {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--clr-accent-dim);
  border: 1px solid var(--clr-accent);
  color: var(--clr-accent);
  font-size: 12px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 1px;
}

.install-step__text {
  font-size: 14px;
  color: var(--clr-text-2);
  line-height: 1.5;
}

.install-step__text strong {
  color: var(--clr-text);
  font-weight: 500;
}

.install-step__icon {
  display: inline-block;
  font-size: 16px;
  vertical-align: middle;
  margin: 0 2px;
}