/* ============ RESET & BASE ============ */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg-primary: #0a0e17;
  --bg-secondary: #111827;
  --bg-card: #151c2c;
  --bg-card-header: #1a2236;
  --bg-input: #0d1220;
  --border-color: #1e2d42;
  --border-focus: #22c55e;
  --text-primary: #f1f5f9;
  --text-secondary: #8b949e;
  --text-muted: #4b5563;
  --green: #22c55e;
  --green-hover: #16a34a;
  --green-bg: rgba(34, 197, 94, 0.1);
  --red: #ef4444;
  --red-hover: #dc2626;
  --red-bg: rgba(239, 68, 68, 0.1);
  --radius: 10px;
  --radius-sm: 6px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
}

.hidden { display: none !important; }

/* ============ HEADER ============ */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 32px;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.header-left h1 {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.header-icon {
  flex-shrink: 0;
}

.admin-badge {
  background: var(--green);
  color: #000;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  letter-spacing: 0.5px;
}

.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-color), transparent);
}

/* ============ STATUS BADGE ============ */
.status-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 500;
  border: 1px solid var(--border-color);
  background: var(--bg-card);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 6px var(--green);
}

.status-connected .status-dot {
  background: var(--green);
  box-shadow: 0 0 6px var(--green);
}

/* ============ CONTENT ============ */
.content {
  max-width: 960px;
  margin: 0 auto;
  padding: 32px;
}

.admin-content {
  max-width: 960px;
  margin: 0 auto;
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* ============ INPUT SECTION ============ */
.input-section {
  margin-bottom: 24px;
}

.input-label {
  display: block;
  margin-bottom: 12px;
}

.input-label strong {
  font-size: 15px;
}

.input-hint {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 2px;
}

.input-label-sm {
  display: block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
  margin-bottom: 8px;
  text-transform: uppercase;
}

.input-row {
  display: flex;
  gap: 12px;
}

.input-field {
  flex: 1;
  background: var(--bg-input);
  border: 2px solid var(--border-color);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-size: 14px;
  color: var(--text-primary);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.input-field::placeholder {
  color: var(--text-muted);
}

.input-field:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.15);
}

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border: none;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 13px;
}

.btn-full {
  width: 100%;
  justify-content: center;
}

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

.btn-green:hover {
  background: var(--green-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(34, 197, 94, 0.3);
}

.btn-red {
  background: var(--red);
  color: #fff;
}

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

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

.btn-outline:hover {
  color: var(--text-primary);
  border-color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.03);
}

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

.btn-red-outline:hover {
  background: var(--red-bg);
}

.btn-icon {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 4px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.btn-icon:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.btn-upload {
  cursor: pointer;
}

.btn-row {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}

/* ============ STATUS BAR ============ */
.status-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

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

.status-text {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.status-text.monitoring {
  color: var(--green);
}

.status-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.pending-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--green-bg);
  color: var(--green);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
}

.pending-spinner {
  width: 14px;
  height: 14px;
  border: 2px solid transparent;
  border-top-color: var(--green);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* ============ EMAIL TABLE ============ */
.email-table-container {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  overflow: hidden;
}

.email-table {
  width: 100%;
  border-collapse: collapse;
}

.email-table thead {
  background: var(--bg-card-header);
}

.email-table th {
  padding: 12px 16px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.email-table th:last-child {
  text-align: center;
}

.email-table td {
  padding: 12px 16px;
  font-size: 13px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
}

.email-table tr:last-child td {
  border-bottom: none;
}

.email-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

.email-table td:last-child {
  text-align: center;
}

.email-time {
  color: var(--text-secondary);
  font-size: 12px;
}

.view-btn {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  cursor: pointer;
  transition: all 0.2s;
}

.view-btn:hover {
  color: var(--green);
  border-color: var(--green);
  background: var(--green-bg);
}

/* ============ EMPTY STATE ============ */
.empty-state {
  padding: 48px 24px;
  text-align: center;
}

.empty-title {
  font-size: 16px;
  font-weight: 600;
  margin-top: 16px;
  color: var(--text-primary);
}

.empty-hint {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ============ CARDS (ADMIN) ============ */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  overflow: hidden;
}

.card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 600;
  background: var(--bg-card-header);
  border-bottom: 1px solid var(--border-color);
}

.card-body {
  padding: 20px;
}

/* ============ SETTINGS ============ */
.setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.setting-label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 500;
}

.setting-section {
  margin-top: 20px;
}

.badge {
  font-size: 10px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  letter-spacing: 0.5px;
}

.badge-red {
  background: var(--red);
  color: #fff;
}

.badge-green {
  background: var(--green);
  color: #000;
}

/* ============ TOGGLE ============ */
.toggle {
  position: relative;
  width: 48px;
  height: 26px;
  display: inline-block;
}

.toggle input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--border-color);
  border-radius: 26px;
  transition: 0.3s;
}

.toggle-slider::before {
  content: '';
  position: absolute;
  height: 20px;
  width: 20px;
  left: 3px;
  bottom: 3px;
  background: #fff;
  border-radius: 50%;
  transition: 0.3s;
}

.toggle input:checked + .toggle-slider {
  background: var(--green);
}

.toggle input:checked + .toggle-slider::before {
  transform: translateX(22px);
}

/* ============ BACKGROUND PREVIEW ============ */
.background-preview {
  margin-top: 12px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.background-preview img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}

.no-background {
  margin-top: 12px;
  padding: 32px;
  border: 2px dashed var(--border-color);
  border-radius: var(--radius);
  text-align: center;
  color: var(--text-muted);
  font-size: 13px;
}

/* ============ FORM GRID ============ */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
}

/* ============ LOGIN SCREEN ============ */
.login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

.login-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 40px;
  width: 100%;
  max-width: 400px;
}

.login-header {
  text-align: center;
  margin-bottom: 24px;
}

.login-header h2 {
  margin-top: 12px;
  font-size: 20px;
}

.login-header p {
  color: var(--text-secondary);
  font-size: 13px;
  margin-top: 4px;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.error-text {
  color: var(--red);
  font-size: 13px;
  text-align: center;
}

/* ============ LOCK SCREEN ============ */
.lock-screen {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-primary);
  background-size: cover;
  background-position: center;
}

.lock-screen::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
}

.lock-card {
  background: rgba(17, 24, 39, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  padding: 48px 56px;
  text-align: center;
  max-width: 420px;
  width: 90%;
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.4);
}

.lock-icon {
  margin-bottom: 16px;
}

.lock-card h2 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
}

.lock-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.lock-divider {
  width: 40px;
  height: 2px;
  background: var(--border-color);
  margin: 20px auto;
}

.lock-brand {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 1px;
}

/* ============ MODAL ============ */
.modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
}

.modal-content {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  width: 90%;
  max-width: 800px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.4);
}

.modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
}

.modal-title h3 {
  font-size: 16px;
  font-weight: 600;
}

.modal-meta {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 4px;
}

.modal-body {
  flex: 1;
  overflow: hidden;
}

.modal-body iframe {
  width: 100%;
  height: 60vh;
  border: none;
  background: #fff;
}

/* ============ TOAST NOTIFICATIONS ============ */
.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  color: #fff;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  animation: slideIn 0.3s ease;
  max-width: 360px;
}

.toast-success {
  background: var(--green);
  color: #000;
}

.toast-error {
  background: var(--red);
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ============ RESPONSIVE ============ */
@media (max-width: 640px) {
  .header {
    padding: 14px 16px;
  }

  .content, .admin-content {
    padding: 16px;
  }

  .input-row {
    flex-direction: column;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .lock-card {
    padding: 32px 24px;
  }

  .status-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .status-right {
    width: 100%;
    justify-content: flex-end;
  }
}