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

:root {
  --bg: #0f0f14;
  --bg-card: #1a1a24;
  --bg-input: #252533;
  --border: #2d2d3d;
  --text: #e4e4eb;
  --text-muted: #8888a0;
  --accent: #8b5cf6;
  --accent-hover: #7c3aed;
  --danger: #ef4444;
  --success: #22c55e;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

.page { display: none; }
.page.active { display: block; }

/* Login */
.login-container {
  max-width: 400px;
  margin: 15vh auto;
  padding: 40px;
  background: var(--bg-card);
  border-radius: 16px;
  border: 1px solid var(--border);
}

.logo {
  text-align: center;
  font-size: 28px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 32px;
}

.logo-sm {
  font-size: 20px;
  font-weight: 700;
  color: var(--accent);
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

input[type="text"],
input[type="password"],
input[type="number"] {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s;
}

input:focus {
  border-color: var(--accent);
}

.input-sm {
  width: 120px !important;
}

/* Buttons */
.btn {
  padding: 10px 20px;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
  font-weight: 500;
}

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

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

.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
}

.btn-outline:hover {
  border-color: var(--text-muted);
  color: var(--text);
}

.btn-danger {
  background: var(--danger);
  color: white;
  padding: 6px 12px;
  font-size: 12px;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 12px;
  background: var(--bg-input);
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: 6px;
}

.btn-sm:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-icon {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 18px;
  padding: 4px 8px;
}

.btn-full {
  width: 100%;
  margin-top: 8px;
}

.error-text {
  color: var(--danger);
  font-size: 13px;
  margin-top: 10px;
  text-align: center;
}

/* Header */
.header {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 16px 32px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  gap: 4px;
  flex: 1;
}

.nav-btn {
  padding: 8px 16px;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: 6px;
  font-size: 14px;
  transition: all 0.2s;
}

.nav-btn:hover {
  color: var(--text);
  background: var(--bg-input);
}

.nav-btn.active {
  color: var(--accent);
  background: rgba(139, 92, 246, 0.1);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-left: auto;
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  padding: 24px 32px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.stat-value {
  font-size: 32px;
  font-weight: 700;
  color: var(--accent);
}

.stat-label {
  font-size: 14px;
  color: var(--text-muted);
}

/* Tabs */
.tab-content { display: none; padding: 0; }
.tab-content.active { display: block; }

.tab-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 32px 16px;
}

.tab-header h2 {
  font-size: 20px;
  font-weight: 600;
}

/* Table */
.data-table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 32px;
  max-width: calc(100% - 64px);
}

.data-table th {
  text-align: left;
  padding: 12px 16px;
  font-size: 12px;
  text-transform: uppercase;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  font-weight: 500;
}

.data-table td {
  padding: 12px 16px;
  font-size: 14px;
  border-bottom: 1px solid var(--border);
}

.data-table tr:hover td {
  background: rgba(139, 92, 246, 0.03);
}

/* Inline form */
.inline-form {
  display: flex;
  gap: 8px;
  align-items: center;
}

/* Modal */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 100;
  justify-content: center;
  align-items: center;
}

.modal-overlay.active {
  display: flex;
}

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  width: 460px;
  max-width: 90vw;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.input-with-btn {
  display: flex;
  gap: 8px;
}

.input-with-btn input {
  flex: 1;
}

.credentials-box {
  background: rgba(139, 92, 246, 0.1);
  border: 1px solid var(--accent);
  border-radius: 8px;
  padding: 12px;
  margin-top: 12px;
  font-size: 13px;
}

.credentials-box p {
  margin-bottom: 4px;
}

/* Blogger Page */
.blogger-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 24px;
}

.promo-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  text-align: center;
  margin-bottom: 24px;
}

.promo-label {
  font-size: 14px;
  color: var(--text-muted);
  display: block;
  margin-bottom: 12px;
}

.promo-code-display {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.promo-code-display span {
  font-size: 36px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 2px;
}

/* Chart */
.chart-container {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  margin-top: 24px;
}

.chart-container h3 {
  font-size: 16px;
  margin-bottom: 16px;
  color: var(--text-muted);
}

.chart-area {
  height: 200px;
  display: flex;
  align-items: flex-end;
  gap: 4px;
  padding-top: 20px;
  position: relative;
}

.chart-bar-group {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.chart-bars {
  display: flex;
  gap: 2px;
  align-items: flex-end;
  height: 160px;
}

.chart-bar {
  width: 12px;
  border-radius: 3px 3px 0 0;
  min-height: 2px;
  transition: height 0.3s;
}

.chart-bar.entered {
  background: var(--accent);
}

.chart-bar.purchased {
  background: var(--success);
}

.chart-date {
  font-size: 10px;
  color: var(--text-muted);
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  height: 40px;
}

/* Badge */
.badge {
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
}

.badge-used {
  background: rgba(239, 68, 68, 0.15);
  color: var(--danger);
}

.badge-available {
  background: rgba(34, 197, 94, 0.15);
  color: var(--success);
}