@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&family=DM+Mono:wght@400;500&display=swap');

:root {
  --bg: #FFFFFF;
  --surface: #F5F5F5;
  --accent: #AAFF00;
  --black: #0A0A0A;
  --gray: #888;
  --border: 2px solid #0A0A0A;
  --shadow: 4px 4px 0 #0A0A0A;
  --shadow-sm: 2px 2px 0 #0A0A0A;
  --font: 'Inter', system-ui, sans-serif;
  --mono: 'DM Mono', 'Courier New', monospace;
  --radius: 0px;
}

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

html { font-size: 16px; -webkit-font-smoothing: antialiased; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--black);
  min-height: 100vh;
}

/* ── Typography ── */
h1 { font-size: clamp(24px, 4vw, 36px); font-weight: 900; letter-spacing: -1px; line-height: 1.05; }
h2 { font-size: 20px; font-weight: 800; letter-spacing: -0.3px; }
h3 { font-size: 15px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; }
p { font-size: 15px; line-height: 1.6; color: #444; }

.label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray);
  display: block;
  margin-bottom: 6px;
}

/* ── Layout ── */
.container {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 24px;
}

.nav {
  border-bottom: var(--border);
  padding: 16px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 18px;
  font-weight: 900;
  letter-spacing: -0.5px;
  text-decoration: none;
  color: var(--black);
}
.logo span { color: var(--accent); background: var(--black); padding: 0 4px; }

.nav-link {
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  color: var(--black);
  border: var(--border);
  padding: 8px 16px;
  transition: background 0.15s;
}
.nav-link:hover { background: var(--accent); }

/* ── Inputs ── */
input[type=text], input[type=email], input[type=number], select {
  border: var(--border);
  border-radius: 0;
  padding: 12px 16px;
  font-size: 14px;
  font-family: var(--font);
  width: 100%;
  outline: none;
  background: white;
  color: var(--black);
  appearance: none;
}
input:focus, select:focus {
  outline: 3px solid var(--black);
  outline-offset: 1px;
}
input::placeholder { color: #bbb; }

/* ── Buttons ── */
.btn {
  border: var(--border);
  border-radius: 0;
  padding: 12px 24px;
  cursor: pointer;
  font-weight: 700;
  font-size: 14px;
  font-family: var(--font);
  letter-spacing: 0.04em;
  transition: transform 0.08s, box-shadow 0.08s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}
.btn:hover { transform: translate(-1px, -1px); box-shadow: var(--shadow); }
.btn:active { transform: translate(2px, 2px); box-shadow: none; }

.btn-primary { background: var(--black); color: white; }
.btn-accent { background: var(--accent); color: var(--black); }
.btn-ghost { background: white; color: var(--black); }
.btn-danger { background: #ff3b30; color: white; border-color: #ff3b30; }
.btn-full { width: 100%; justify-content: center; padding: 16px; font-size: 16px; }

/* ── Input with inline action button ── */
.input-action {
  display: flex;
  border: var(--border);
  box-shadow: var(--shadow);
}
.input-action input {
  border: none;
  flex: 1;
  box-shadow: none;
  outline: none;
}
.input-action input:focus { outline: none; }
.input-action .btn {
  border: none;
  border-left: var(--border);
  box-shadow: none;
  flex-shrink: 0;
}
.input-action .btn:hover { transform: none; background: var(--accent); color: var(--black); }

/* ── Cards ── */
.card {
  border: var(--border);
  box-shadow: var(--shadow);
  padding: 24px;
  background: white;
}
.card-dark {
  border: var(--border);
  box-shadow: var(--shadow);
  padding: 24px;
  background: var(--black);
  color: white;
}
.card + .card, .card + .card-dark, .card-dark + .card { margin-top: 16px; }

/* ── Drop Zone ── */
.dropzone {
  border: 2px dashed var(--black);
  padding: 80px 40px;
  text-align: center;
  cursor: pointer;
  transition: background 0.15s, border-style 0.15s;
  position: relative;
}
.dropzone:hover, .dropzone.drag-over {
  background: var(--surface);
  border-style: solid;
}
.dropzone h2 { font-size: 24px; font-weight: 900; margin-bottom: 8px; }
.dropzone p { color: var(--gray); font-size: 14px; }
.dropzone-icon {
  font-size: 48px;
  margin-bottom: 16px;
  display: block;
}
#file-input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }

/* ── File List ── */
.file-list { display: flex; flex-direction: column; gap: 8px; margin-top: 16px; }
.file-item {
  display: flex;
  align-items: center;
  gap: 12px;
  border: var(--border);
  padding: 12px 16px;
  background: var(--surface);
}
.file-item .file-type-badge { font-size: 10px; font-weight: 800; font-family: var(--mono); padding: 3px 6px; border: 1px solid var(--black); background: var(--surface); letter-spacing: 0.05em; flex-shrink: 0; }
.file-item .file-info { flex: 1; min-width: 0; }
.file-item .file-name { font-size: 14px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.file-item .file-size { font-size: 12px; color: var(--gray); font-family: var(--mono); }
.file-item .file-remove { cursor: pointer; font-size: 18px; color: var(--gray); flex-shrink: 0; line-height: 1; }
.file-item .file-remove:hover { color: var(--black); }

/* ── Progress Bar ── */
.progress-wrap {
  height: 6px;
  background: #eee;
  border: 1px solid var(--black);
  margin-top: 6px;
  overflow: hidden;
}
.progress-bar {
  height: 100%;
  background: var(--accent);
  width: 0%;
  transition: width 0.2s;
}

/* ── Settings Panel ── */
.settings { margin-top: 24px; display: flex; flex-direction: column; gap: 20px; }

/* Expiry pills */
.pill-group { display: flex; gap: 0; }
.pill {
  border: var(--border);
  margin-left: -2px;
  padding: 10px 16px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 700;
  background: white;
  user-select: none;
  transition: background 0.1s;
}
.pill:first-child { margin-left: 0; }
.pill:hover { background: var(--surface); }
.pill.active { background: var(--black); color: white; z-index: 1; }

/* Toggle */
.toggle-wrap { display: flex; align-items: center; gap: 12px; cursor: pointer; }
.toggle {
  width: 44px; height: 24px;
  border: var(--border);
  background: white;
  position: relative;
  cursor: pointer;
  flex-shrink: 0;
}
.toggle::after {
  content: '';
  position: absolute;
  top: 3px; left: 3px;
  width: 14px; height: 14px;
  background: var(--black);
  transition: transform 0.15s;
}
.toggle.on { background: var(--accent); }
.toggle.on::after { transform: translateX(20px); }
.toggle-label { font-size: 14px; font-weight: 700; }

/* Email recipient list */
.email-list { display: flex; flex-direction: column; gap: 8px; }
.email-item { display: flex; gap: 0; border: var(--border); }
.email-item input { border: none; flex: 1; }
.email-item .remove-email { border: none; border-left: var(--border); padding: 10px 14px; cursor: pointer; background: white; font-size: 16px; line-height: 1; }
.email-item .remove-email:hover { background: #ffeaea; }

/* ── Badges / Status ── */
.badge {
  display: inline-block;
  padding: 3px 10px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1px solid currentColor;
}
.badge-green { color: #00aa00; background: #eaffea; border-color: #00aa00; }
.badge-red { color: #cc0000; background: #ffeeee; border-color: #cc0000; }
.badge-gray { color: var(--gray); background: var(--surface); border-color: #ccc; }
.badge-accent { background: var(--accent); color: var(--black); border-color: var(--black); }

/* ── Success card ── */
.success-card {
  border: var(--border);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.success-header {
  background: var(--black);
  color: var(--accent);
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.success-header h2 { color: var(--accent); }
.success-check { font-size: 13px; font-weight: 900; font-family: var(--mono); letter-spacing: 0.05em; color: var(--accent); border: 2px solid var(--accent); padding: 4px 10px; }
.success-body { padding: 24px; }

/* ── Table ── */
.table { width: 100%; border-collapse: collapse; }
.table th {
  text-align: left;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 10px 12px;
  border-bottom: var(--border);
  background: var(--surface);
}
.table td {
  padding: 12px;
  border-bottom: 1px solid #eee;
  font-size: 13px;
  vertical-align: middle;
}
.table tr:last-child td { border-bottom: none; }
.table tr:hover td { background: var(--surface); }

/* ── Stat boxes ── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
}
.stat-box {
  border: var(--border);
  margin-left: -2px;
  padding: 16px;
  text-align: center;
}
.stat-box:first-child { margin-left: 0; }
.stat-value { font-size: 28px; font-weight: 900; font-family: var(--mono); }
.stat-label { font-size: 11px; color: var(--gray); text-transform: uppercase; letter-spacing: 0.08em; margin-top: 2px; }

/* ── QR Code ── */
.qr-wrap {
  display: flex;
  justify-content: center;
  padding: 16px;
  border: var(--border);
  background: white;
  margin-top: 16px;
}

/* ── Section gaps ── */
.section { margin-top: 24px; }
.mt-8 { margin-top: 8px; }
.mt-12 { margin-top: 12px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mb-8 { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.flex-1 { flex: 1; }
.text-mono { font-family: var(--mono); }
.text-sm { font-size: 13px; }
.text-xs { font-size: 11px; }
.text-gray { color: var(--gray); }
.text-accent { color: var(--accent); }
.font-bold { font-weight: 700; }
.truncate { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ── Spinner ── */
@keyframes spin { to { transform: rotate(360deg); } }
.spinner {
  width: 18px; height: 18px;
  border: 2px solid #ccc;
  border-top-color: var(--black);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: inline-block;
}

/* ── Toast / notification ── */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--black);
  color: white;
  padding: 14px 20px;
  font-size: 14px;
  font-weight: 600;
  border: var(--border);
  box-shadow: var(--shadow);
  z-index: 9999;
  transform: translateY(100px);
  opacity: 0;
  transition: transform 0.2s, opacity 0.2s;
}
.toast.show { transform: translateY(0); opacity: 1; }
.toast.accent { background: var(--accent); color: var(--black); }

/* ── Hero ── */
.hero { padding: 32px 0 28px; }
.hero-eyebrow {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray);
  margin-bottom: 10px;
  display: block;
}

/* ── Empty state ── */
.empty-state {
  padding: 80px 40px;
  text-align: center;
  border: 2px dashed #ccc;
}
.empty-state h3 { margin-bottom: 8px; }
.empty-state p { color: var(--gray); font-size: 14px; }

/* ── Responsive ── */
@media (max-width: 600px) {
  .stats-grid { grid-template-columns: 1fr; }
  .stat-box { margin-left: 0; margin-top: -2px; }
  .pill-group { flex-wrap: wrap; }
  .hero { padding: 24px 0 20px; }
  .table { font-size: 12px; }
  .table th, .table td { padding: 8px; }
}