:root {
  --primary: #0f2d59;
  --primary-hover: #173d75;
  --secondary: #c59b27;
  --secondary-hover: #d4a72c;
  --bg: #f8fafc;
  --card-bg: #ffffff;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --radius: 8px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
  -webkit-tap-highlight-color: transparent;
}

body {
  background-color: var(--bg);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
header {
  background-color: var(--primary);
  color: white;
  padding: 12px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  position: sticky;
  top: 0;
  z-index: 100;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand img {
  height: 40px;
  border-radius: 4px;
  background: white;
  padding: 2px;
}

.brand-text h1 {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.3px;
}

.brand-text p {
  font-size: 11px;
  opacity: 0.85;
}

.user-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255,255,255,0.12);
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 13px;
}

.user-badge button {
  background: var(--secondary);
  color: #000;
  border: none;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
}

/* Container */
.container {
  max-width: 1000px;
  width: 100%;
  margin: 20px auto;
  padding: 0 16px;
  flex: 1;
}

/* Login Modal / Screen */
.login-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 80vh;
}

.login-card {
  background: var(--card-bg);
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
  max-width: 440px;
  width: 100%;
  text-align: center;
}

.login-card img {
  height: 60px;
  margin-bottom: 16px;
}

.login-card h2 {
  font-size: 20px;
  color: var(--primary);
  margin-bottom: 6px;
}

.login-card p {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 20px;
}

/* Form inputs */
.form-group {
  margin-bottom: 16px;
  text-align: left;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-main);
}

.input-box {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s;
}

.input-box:focus {
  border-color: var(--primary);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
  text-decoration: none;
}

.btn-primary {
  background: var(--primary);
  color: white;
}
.btn-primary:hover {
  background: var(--primary-hover);
}

.btn-secondary {
  background: var(--secondary);
  color: #000;
}
.btn-secondary:hover {
  background: var(--secondary-hover);
}

.btn-full {
  width: 100%;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 12px;
}

/* Tabs */
.tabs-nav {
  display: flex;
  background: var(--card-bg);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow-x: auto;
  margin-bottom: 20px;
}

.tab-btn {
  flex: 1;
  min-width: 130px;
  padding: 12px 14px;
  background: none;
  border: none;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  text-align: center;
  border-bottom: 3px solid transparent;
  white-space: nowrap;
}

.tab-btn.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  background: rgba(15, 45, 89, 0.03);
}

/* Cards */
.card {
  background: var(--card-bg);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 20px;
  margin-bottom: 20px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.03);
}

.card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Grid Layouts */
.grid-2 {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 20px;
}

@media (max-width: 768px) {
  .grid-2 {
    grid-template-columns: 1fr;
  }
  header {
    flex-direction: column;
    gap: 10px;
    align-items: flex-start;
  }
  .user-badge {
    width: 100%;
    justify-content: space-between;
  }
}

/* Tag Sticker Preview Canvas (Exact 3" x 1" aspect ratio: 3:1) */
.sticker-preview-wrap {
  background: #f1f5f9;
  border: 2px dashed #cbd5e1;
  border-radius: var(--radius);
  padding: 16px;
  text-align: center;
}

.sticker-canvas {
  width: 100%;
  max-width: 360px;
  height: auto;
  aspect-ratio: 3 / 1;
  background: white;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
  border-radius: 4px;
  margin: 0 auto;
}

/* Badges */
.badge {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
}
.badge-success { background: #dcfce7; color: #15803d; }
.badge-danger { background: #fee2e2; color: #b91c1c; }
.badge-warning { background: #fef3c7; color: #b45309; }
.badge-info { background: #e0f2fe; color: #0369a1; }

/* Table */
.table-wrap {
  overflow-x: auto;
  max-height: 420px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

th, td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

th {
  background: #f8fafc;
  font-weight: 600;
  color: var(--text-muted);
  position: sticky;
  top: 0;
}

tr:hover {
  background: #f8fafc;
}

/* Alert Boxes */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 13px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.alert-info { background: #eff6ff; color: #1e40af; border: 1px solid #bfdbfe; }
.alert-warning { background: #fffbeb; color: #92400e; border: 1px solid #fde68a; }
.alert-danger { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }
.alert-success { background: #f0fdf4; color: #166534; border: 1px solid #bbf7d0; }

/* File drop zone */
.dropzone {
  border: 2px dashed #cbd5e1;
  border-radius: var(--radius);
  padding: 30px;
  text-align: center;
  background: #f8fafc;
  cursor: pointer;
  transition: all 0.2s;
}
.dropzone:hover {
  border-color: var(--primary);
  background: #f1f5f9;
}