/* Pagos App — Estilos */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700&display=swap');

:root {
  --bg: #0c1222;
  --bg-soft: #111827;
  --surface: #1a2332;
  --surface-hover: #243044;
  --border: #2d3a4d;
  --border-soft: #1e2a3a;
  --text: #f1f5f9;
  --text-muted: #94a3b8;
  --accent: #0ea5e9;
  --accent-hover: #38bdf8;
  --accent-soft: rgba(14, 165, 233, 0.15);
  --success: #22c55e;
  --success-soft: rgba(34, 197, 94, 0.12);
  --error: #ef4444;
  --error-soft: rgba(239, 68, 68, 0.12);
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
  --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.15);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* Fondo sutil */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: radial-gradient(ellipse 80% 50% at 50% -20%, rgba(14, 165, 233, 0.08), transparent),
              radial-gradient(ellipse 60% 40% at 100% 0%, rgba(14, 165, 233, 0.04), transparent);
  pointer-events: none;
  z-index: 0;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.25rem;
  width: 100%;
  position: relative;
  z-index: 1;
}

/* Header */
.header {
  background: var(--bg-soft);
  border-bottom: 1px solid var(--border-soft);
  padding: 0.875rem 0;
  position: relative;
  z-index: 2;
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-weight: 700;
  font-size: 1.35rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.02em;
  transition: color 0.2s;
}

.logo:hover {
  color: var(--accent);
}

.header nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.header nav a {
  padding: 0.5rem 0.85rem;
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
  border-radius: var(--radius-sm);
  transition: color 0.2s, background 0.2s;
}

.header nav a:hover {
  color: var(--accent);
  background: var(--accent-soft);
}

.main {
  flex: 1;
  padding: 2.5rem 0;
}

.footer {
  border-top: 1px solid var(--border-soft);
  padding: 1.25rem 0;
  color: var(--text-muted);
  font-size: 0.85rem;
  text-align: center;
  position: relative;
  z-index: 1;
}

/* ——— Página de subida ——— */
.page-upload {
  max-width: 480px;
}

.upload-logo {
  margin-bottom: 1.5rem;
  text-align: center;
}

.upload-logo .logo-img {
  max-width: 220px;
  height: auto;
  display: inline-block;
  vertical-align: middle;
}

.file-options {
  margin-top: 0.25rem;
}

.file-input-hidden {
  position: absolute;
  width: 0.1px;
  height: 0.1px;
  opacity: 0;
  overflow: hidden;
  z-index: -1;
}

.file-option-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn-outline {
  flex: 1;
  min-width: 140px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.65rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  font-family: inherit;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: border-color 0.2s, background 0.2s, color 0.2s;
}

.btn-outline:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
}

.btn-icon {
  font-size: 1.1rem;
}

.file-chosen {
  margin: 0.75rem 0 0;
  font-size: 0.85rem;
  color: var(--text-muted);
  min-height: 1.25rem;
}

.page-upload h1 {
  margin-top: 0;
  font-size: 1.85rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(180deg, var(--text) 0%, var(--text-muted) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.lead {
  color: var(--text-muted);
  margin-bottom: 1.75rem;
  font-size: 0.95rem;
}

.upload-form {
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 1.75rem;
  box-shadow: var(--shadow-card);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group:last-of-type {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text);
}

.form-group input[type="file"],
.form-group select {
  width: 100%;
  padding: 0.65rem 0.85rem;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input[type="file"]:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.form-group select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394a3b8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.85rem center;
  padding-right: 2rem;
}

.form-group input[type="file"]::file-selector-button {
  padding: 0.35rem 0.75rem;
  margin-right: 0.75rem;
  background: var(--border);
  border: none;
  border-radius: 6px;
  color: var(--text);
  font-size: 0.85rem;
  cursor: pointer;
  font-family: inherit;
}

.form-group input[type="file"]::file-selector-button:hover {
  background: var(--surface-hover);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.35rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  text-decoration: none;
  font-family: inherit;
  transition: transform 0.15s, box-shadow 0.2s, background 0.2s;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  width: 100%;
  padding: 0.75rem 1.5rem;
}

.btn-primary:hover {
  background: var(--accent-hover);
  box-shadow: 0 4px 14px rgba(14, 165, 233, 0.35);
}

.alert {
  padding: 1rem 1.15rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1.25rem;
  font-size: 0.9rem;
  border: 1px solid transparent;
}

.alert-success {
  background: var(--success-soft);
  border-color: rgba(34, 197, 94, 0.3);
  color: var(--success);
}

.alert-error {
  background: var(--error-soft);
  border-color: rgba(239, 68, 68, 0.3);
  color: #f87171;
}

/* ——— Admin ——— */
.page-admin h1 {
  margin-top: 0;
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.page-admin .lead {
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}

.admin-toolbar {
  margin-bottom: 1.75rem;
  padding: 1rem 1.25rem;
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}

.filter-form {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.filter-form label {
  margin: 0;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.filter-form select {
  min-width: 200px;
  padding: 0.5rem 2rem 0.5rem 0.85rem;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.9rem;
  font-family: inherit;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394a3b8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
}

.filter-form select:focus {
  outline: none;
  border-color: var(--accent);
}

.empty {
  color: var(--text-muted);
  text-align: center;
  padding: 3rem 1rem;
  font-size: 1rem;
  background: var(--surface);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
}

.tienda-group {
  margin-bottom: 2.5rem;
}

.tienda-group .tienda-name {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--border-soft);
  letter-spacing: -0.01em;
}

.tienda-group .date-group {
  margin-bottom: 1.5rem;
}

.tienda-group .date-group h3 {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin: 0 0 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.file-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}

.file-card {
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}

.file-card:hover {
  border-color: var(--border);
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}

.file-card .preview {
  aspect-ratio: 1;
  background: var(--bg-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 160px;
  overflow: hidden;
}

.file-card .preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s;
}

.file-card:hover .preview img {
  transform: scale(1.03);
}

.file-card .preview-pdf {
  color: var(--text-muted);
  font-size: 2rem;
  font-weight: 700;
}

.file-info {
  padding: 0.75rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.filename {
  font-size: 0.8rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text);
}

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

.btn-download {
  margin: 0 1rem 1rem;
  padding: 0.5rem 1rem;
  text-align: center;
  background: var(--border-soft);
  color: var(--text);
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: background 0.2s, color 0.2s;
}

.btn-download:hover {
  background: var(--accent);
  color: #fff;
}

/* ——— Error ——— */
.page-error {
  text-align: center;
  max-width: 420px;
  margin: 0 auto;
}

.page-error h1 {
  margin-top: 0;
  font-size: 1.5rem;
}

.page-error .alert {
  margin-bottom: 1.25rem;
}

.page-error .btn-primary {
  width: auto;
}

/* Responsive */
@media (max-width: 640px) {
  .header nav a {
    padding: 0.4rem 0.6rem;
    font-size: 0.85rem;
  }

  .upload-form {
    padding: 1.25rem;
  }

  .file-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  }
}