/* ─── Reset & tokens ──────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --white:        #ffffff;
  --gray-50:      #f8f9fa;
  --gray-100:     #f1f3f5;
  --gray-200:     #e9ecef;
  --gray-400:     #adb5bd;
  --gray-600:     #6c757d;
  --gray-800:     #343a40;
  --black:        #0d0d0d;
  --navy:         #1a2e4a;
  --navy-light:   #2a4a70;
  --navy-accent:  #3b6ea5;
  --blue-light:   #e8f0f9;
  --green:        #1e8a4a;
  --green-light:  #e4f5ec;
  --amber:        #b86e00;
  --amber-light:  #fef3e2;
  --red:          #c0392b;
  --red-light:    #fdecea;

  --radius:   10px;
  --radius-sm: 6px;
  --shadow:   0 1px 4px rgba(0,0,0,.06), 0 4px 16px rgba(0,0,0,.06);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--gray-50);
  color: var(--black);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

/* ─── Nav ─────────────────────────────────────────────────────── */
nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gray-200);
  height: 56px;
}
.nav-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--navy);
  text-decoration: none;
}
.logo span { color: var(--navy-accent); }

.btn-link {
  background: none;
  border: none;
  font: inherit;
  font-size: .875rem;
  font-weight: 500;
  color: var(--navy-accent);
  cursor: pointer;
  padding: .375rem .75rem;
  border-radius: var(--radius-sm);
  transition: background .15s;
}
.btn-link:hover { background: var(--blue-light); }

/* ─── Views ───────────────────────────────────────────────────── */
.view { display: none; }
.view.active { display: block; }

/* ─── INPUT VIEW ──────────────────────────────────────────────── */
.input-wrapper {
  max-width: 640px;
  margin: 0 auto;
  padding: 4rem 1.5rem 6rem;
}
.input-hero {
  text-align: center;
  margin-bottom: 2.5rem;
}
.input-hero h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--navy);
  margin-bottom: .75rem;
}
.input-hero p {
  font-size: 1rem;
  color: var(--gray-600);
  line-height: 1.7;
}

.search-box {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* Drop zone */
.drop-zone {
  border: 1.5px dashed var(--gray-200);
  border-radius: var(--radius-sm);
  padding: .75rem 1rem;
  cursor: pointer;
  transition: border-color .15s, background .15s;
  position: relative;
}
.drop-zone:hover,
.drop-zone.drag-over {
  border-color: var(--navy-accent);
  background: var(--blue-light);
}
.drop-zone input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
  height: 100%;
}
.drop-content {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .85rem;
  color: var(--gray-600);
  pointer-events: none;
}
.drop-content svg { color: var(--gray-400); flex-shrink: 0; }
.hint { color: var(--gray-400); font-size: .8rem; }
.file-selected {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .85rem;
  color: var(--green);
  pointer-events: none;
}
.file-selected svg { flex-shrink: 0; }
.remove-file {
  pointer-events: all;
  background: none;
  border: none;
  font-size: 1rem;
  color: var(--gray-400);
  cursor: pointer;
  margin-left: auto;
  line-height: 1;
  padding: 0 .25rem;
}
.remove-file:hover { color: var(--red); }

/* Textarea */
textarea {
  width: 100%;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
  padding: .75rem 1rem;
  font: inherit;
  font-size: .9rem;
  resize: vertical;
  transition: border-color .15s, box-shadow .15s;
  line-height: 1.6;
  color: var(--black);
  background: var(--white);
}
textarea:focus {
  outline: none;
  border-color: var(--navy-accent);
  box-shadow: 0 0 0 3px rgba(59,110,165,.12);
}
textarea::placeholder { color: var(--gray-400); }

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  background: var(--navy);
  color: var(--white);
  border: none;
  padding: .75rem 1.5rem;
  border-radius: var(--radius-sm);
  font: inherit;
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: background .15s, transform .1s;
  white-space: nowrap;
}
.btn-primary:hover  { background: var(--navy-light); }
.btn-primary:active { transform: scale(0.98); }
.btn-full { width: 100%; }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  background: var(--white);
  color: var(--navy);
  border: 1.5px solid var(--gray-200);
  padding: .65rem 1.25rem;
  border-radius: var(--radius-sm);
  font: inherit;
  font-size: .875rem;
  font-weight: 500;
  cursor: pointer;
  transition: border-color .15s, background .15s;
  white-space: nowrap;
}
.btn-secondary:hover { border-color: var(--navy-accent); background: var(--blue-light); }

/* ─── SEARCHING VIEW ──────────────────────────────────────────── */
.searching-wrapper {
  max-width: 640px;
  margin: 0 auto;
  padding: 3.5rem 1.5rem;
}
.searching-header {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.searching-header h2 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--navy);
  letter-spacing: -0.02em;
}

.spinner {
  width: 20px; height: 20px;
  border: 2.5px solid var(--gray-200);
  border-top-color: var(--navy-accent);
  border-radius: 50%;
  animation: spin .75s linear infinite;
  flex-shrink: 0;
  margin-top: 4px;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Log feed */
.log-feed {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 1rem;
  max-height: 420px;
  overflow-y: auto;
  font-family: 'Menlo', 'Monaco', 'Courier New', monospace;
  font-size: .8rem;
  line-height: 1.6;
  scroll-behavior: smooth;
}
.log-entry {
  display: flex;
  gap: .75rem;
  align-items: baseline;
  padding: .2rem 0;
  border-bottom: 1px solid var(--gray-100);
  animation: fadeIn .25s ease;
  color: var(--gray-800);
}
.log-entry:last-child { border-bottom: none; }
.log-ts {
  color: var(--gray-400);
  font-size: .72rem;
  flex-shrink: 0;
  user-select: none;
}
.log-msg { flex: 1; word-break: break-word; }
.log-entry.icon-check  .log-msg { color: var(--green); }
.log-entry.icon-error  .log-msg { color: var(--red); }
.log-entry.icon-search .log-msg { color: var(--navy); }

.log-mini { max-height: 160px; margin-bottom: 1.25rem; }

@keyframes fadeIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }

/* ─── SUPPLIERS & DASHBOARD VIEWS ─────────────────────────────── */
.page-wrapper {
  max-width: 960px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
}
.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}
.page-header h2 {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--navy);
}
.subtitle {
  font-size: .875rem;
  color: var(--gray-600);
  margin-top: .25rem;
}
.table-hint {
  font-size: .78rem;
  color: var(--gray-400);
  margin-top: .75rem;
}

/* Stats row */
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.stat-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  box-shadow: var(--shadow);
}
.stat-num {
  display: block;
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  color: var(--navy);
  line-height: 1;
  margin-bottom: .25rem;
}
.stat-label {
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  font-weight: 500;
  color: var(--gray-600);
}

/* Table */
.table-scroll {
  overflow-x: auto;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  background: var(--white);
}
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .875rem;
}
.data-table th {
  background: var(--navy);
  color: var(--white);
  text-align: left;
  padding: .65rem 1rem;
  font-size: .72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .07em;
  white-space: nowrap;
}
.data-table th:first-child { border-radius: var(--radius) 0 0 0; }
.data-table th:last-child  { border-radius: 0 var(--radius) 0 0; }
.data-table td {
  padding: .75rem 1rem;
  border-bottom: 1px solid var(--gray-100);
  vertical-align: middle;
  color: var(--gray-800);
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover td { background: var(--gray-50); }

.data-table td a {
  color: var(--navy-accent);
  text-decoration: none;
  font-size: .82rem;
}
.data-table td a:hover { text-decoration: underline; }

.data-table input[type="checkbox"] {
  accent-color: var(--navy-accent);
  width: 15px; height: 15px;
  cursor: pointer;
}

/* Score bars */
.score-bar {
  display: flex;
  gap: 3px;
  align-items: center;
}
.score-pip {
  width: 6px; height: 14px;
  border-radius: 2px;
  background: var(--gray-200);
}
.score-pip.filled { background: var(--navy-accent); }

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  font-size: .72rem;
  font-weight: 600;
  padding: .2rem .6rem;
  border-radius: 100px;
  text-transform: uppercase;
  letter-spacing: .04em;
  white-space: nowrap;
}
.badge::before {
  content: '';
  width: 5px; height: 5px;
  border-radius: 50%;
  background: currentColor;
}
.badge-pending  { background: var(--amber-light); color: var(--amber); }
.badge-sent     { background: var(--blue-light);  color: var(--navy-accent); }
.badge-received { background: var(--green-light); color: var(--green); }
.badge-error    { background: var(--red-light);   color: var(--red); }
.badge-no-email { background: var(--gray-100);    color: var(--gray-600); }

/* Notes cell */
.notes-cell {
  max-width: 220px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: .82rem;
  color: var(--gray-600);
}

/* Price cell */
.price-cell {
  font-weight: 600;
  color: var(--navy);
  font-variant-numeric: tabular-nums;
}

/* ─── ERROR VIEW ──────────────────────────────────────────────── */
.error-wrapper {
  max-width: 400px;
  margin: 6rem auto;
  padding: 1.5rem;
  text-align: center;
}
.error-icon {
  width: 48px; height: 48px;
  background: var(--red-light);
  color: var(--red);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  font-weight: 700;
  margin: 0 auto 1rem;
}
.error-wrapper h2 { font-size: 1.2rem; color: var(--navy); margin-bottom: .5rem; }
.error-wrapper p  { color: var(--gray-600); font-size: .9rem; margin-bottom: 1.5rem; }

/* ─── Footer ─────────────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--gray-200);
  background: var(--white);
  padding: 1.25rem 0;
  margin-top: auto;
}
.footer-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.footer-brand {
  font-size: .95rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--navy);
}
.footer-brand span { color: var(--navy-accent); }
.footer-links {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}
.footer-links a {
  font-size: .8rem;
  color: var(--gray-600);
  text-decoration: none;
  transition: color .15s;
}
.footer-links a:hover { color: var(--navy-accent); }

/* ─── Utils ───────────────────────────────────────────────────── */
.hidden { display: none !important; }

/* ─── Responsive ─────────────────────────────────────────────── */
@media (max-width: 640px) {
  .input-wrapper  { padding: 2rem 1rem 4rem; }
  .searching-wrapper, .page-wrapper { padding: 1.5rem 1rem 3rem; }
  .page-header    { flex-direction: column; align-items: stretch; }
  .page-header .btn-primary,
  .page-header .btn-secondary { width: 100%; justify-content: center; }
  .stats-row { grid-template-columns: 1fr 1fr; }
}