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

:root {
  --bg:        #0a0e1a;
  --surface:   #111827;
  --border:    #1e2d45;
  --accent:    #3b82f6;
  --accent2:   #06b6d4;
  --text:      #f0f4ff;
  --muted:     #64748b;
  --success:   #22c55e;
  --warning:   #f59e0b;
  --radius:    16px;
}

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* Subtle grid background */
.bg-grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(59,130,246,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59,130,246,0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

header {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 64px 24px 32px;
}

.logo {
  font-family: 'DM Serif Display', serif;
  font-size: 2.2rem;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}

.tagline {
  color: var(--muted);
  font-size: 1.05rem;
  font-weight: 300;
  letter-spacing: 0.01em;
}

main {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 620px;
  padding: 0 24px 80px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  margin-bottom: 20px;
  animation: fadeUp 0.4s ease both;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hidden { display: none !important; }

/* Drop zone */
.drop-zone {
  border: 2px dashed var(--border);
  border-radius: 12px;
  padding: 48px 24px;
  text-align: center;
  transition: border-color 0.2s, background 0.2s;
  cursor: pointer;
  margin-bottom: 24px;
}

.drop-zone.drag-over {
  border-color: var(--accent);
  background: rgba(59,130,246,0.05);
}

.drop-icon {
  font-size: 2rem;
  margin-bottom: 16px;
  opacity: 0.5;
}

.drop-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.drop-sub {
  color: var(--muted);
  font-size: 0.88rem;
  margin-bottom: 20px;
  line-height: 1.5;
}

/* File list */
.file-list {
  list-style: none;
  margin-bottom: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.file-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(59,130,246,0.06);
  border: 1px solid rgba(59,130,246,0.15);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 0.9rem;
  animation: fadeUp 0.25s ease both;
}

.file-list li .file-icon { font-size: 1rem; opacity: 0.7; }
.file-list li .file-name { flex: 1; font-weight: 500; }
.file-list li .file-size { color: var(--muted); font-size: 0.8rem; }
.file-list li .remove-btn {
  background: none; border: none; color: var(--muted);
  cursor: pointer; font-size: 1rem; line-height: 1;
  transition: color 0.15s;
}
.file-list li .remove-btn:hover { color: #ef4444; }

/* Buttons */
.btn-primary {
  width: 100%;
  padding: 14px 24px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border: none;
  border-radius: 10px;
  color: #fff;
  font-family: 'DM Sans', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.15s;
  letter-spacing: 0.01em;
}

.btn-primary:hover:not(:disabled) { opacity: 0.9; transform: translateY(-1px); }
.btn-primary:disabled { opacity: 0.35; cursor: not-allowed; }

.btn-outline {
  padding: 10px 20px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}

.btn-outline:hover { border-color: var(--accent); background: rgba(59,130,246,0.06); }

.btn-ghost {
  background: none;
  border: none;
  color: var(--muted);
  font-family: 'DM Sans', sans-serif;
  font-size: 0.88rem;
  cursor: pointer;
  margin-top: 16px;
  text-decoration: underline;
  transition: color 0.2s;
}

.btn-ghost:hover { color: var(--text); }

/* Processing */
.spinner {
  width: 44px; height: 44px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 20px;
}

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

.processing-title {
  text-align: center;
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.processing-sub {
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
}

/* Results */
.results-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 28px;
}

.check {
  width: 40px; height: 40px;
  background: rgba(34,197,94,0.15);
  border: 1px solid rgba(34,197,94,0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--success);
  flex-shrink: 0;
}

.results-header h2 {
  font-family: 'DM Serif Display', serif;
  font-size: 1.6rem;
  font-weight: 400;
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 28px;
}

.stat-box {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 12px;
  text-align: center;
}

.stat-value {
  font-family: 'DM Serif Display', serif;
  font-size: 1.8rem;
  line-height: 1;
  margin-bottom: 6px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  color: var(--muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 500;
}

.download-row {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 16px;
}

.review-note {
  font-size: 0.85rem;
  color: var(--warning);
  text-align: center;
  line-height: 1.5;
  padding: 10px 14px;
  background: rgba(245,158,11,0.08);
  border: 1px solid rgba(245,158,11,0.2);
  border-radius: 8px;
}

/* Error */
.error-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: #ef4444;
  margin-bottom: 8px;
  text-align: center;
}

.error-msg {
  color: var(--muted);
  font-size: 0.9rem;
  text-align: center;
  line-height: 1.5;
}

footer {
  position: relative;
  z-index: 1;
  padding: 24px;
  color: var(--muted);
  font-size: 0.8rem;
  text-align: center;
  margin-top: auto;
}
/* Pricing cards */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}

.price-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 12px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, transform 0.15s;
  position: relative;
}

.price-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.price-card.featured {
  border-color: var(--accent);
  background: rgba(59,130,246,0.06);
}

.price-badge {
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: white;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 20px;
  white-space: nowrap;
}

.price-amount {
  font-family: 'DM Serif Display', serif;
  font-size: 2rem;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 4px;
}

.price-label {
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.price-sub {
  font-size: 0.75rem;
  color: var(--muted);
}