/* ===================================================================
   SISURYA TEMPMAIL — NEO-BRUTALIST DESIGN SYSTEM
   Berdasarkan spesifikasi desain temp/desain.md
   =================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');
@import url('https://api.fontshare.com/v2/css?f[]=cabinet-grotesk@700,800,900&display=swap');

:root {
  /* Colors — Light Mode */
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --primary-active: #1d4ed8;
  --primary-fg: #ffffff;
  
  --secondary: #a855f7;
  --secondary-hover: #9333ea;
  --secondary-fg: #ffffff;

  --bg: #f8fafc;
  --surface: #ffffff;
  --surface-alt: #f1f5f9;
  --surface-inset: #f8fafc;
  
  --foreground: #1e293b;
  --foreground-muted: #64748b;
  --foreground-dim: #94a3b8;

  --border: #1e293b;
  --border-subtle: #cbd5e1;
  --border-light: #e2e8f0;

  --shadow-color: #1e293b;
  --shadow-1: 4px 4px 0px 0px var(--shadow-color);
  --shadow-2: 8px 8px 0px 0px var(--shadow-color);
  --shadow-3: 12px 12px 0px 0px var(--shadow-color);
  --shadow-sm: 2px 2px 0px 0px var(--shadow-color);

  --success: #22c55e;
  --success-bg: #f0fdf4;
  --info: #06b6d4;
  --info-bg: #ecfeff;
  --warning: #eab308;
  --warning-bg: #fefce8;
  --danger: #ef4444;
  --danger-bg: #fef2f2;

  /* Typography */
  --font-display: 'Cabinet Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'SF Mono', 'Cascadia Code', 'Fira Code', Consolas, monospace;

  /* Spacing */
  --sp-xs: 4px;
  --sp-sm: 8px;
  --sp-md: 16px;
  --sp-lg: 24px;
  --sp-xl: 32px;

  /* Radius */
  --r-sm: 4px;
  --r-md: 8px;
  --r-lg: 12px;
  --r-xl: 16px;
  --r-full: 9999px;

  --max-w: 780px;
}

[data-theme="dark"] {
  /* Colors — Dark Mode */
  --primary: #60a5fa;
  --primary-hover: #3b82f6;
  --primary-active: #2563eb;
  --primary-fg: #0f172a;

  --secondary: #c084fc;
  --secondary-hover: #a855f7;
  --secondary-fg: #0f172a;

  --bg: #0f172a;
  --surface: #1e293b;
  --surface-alt: #334155;
  --surface-inset: #0b1120;

  --foreground: #f1f5f9;
  --foreground-muted: #94a3b8;
  --foreground-dim: #64748b;

  --border: #f1f5f9;
  --border-subtle: #475569;
  --border-light: #334155;

  --shadow-color: #000000;
  --shadow-1: 4px 4px 0px 0px var(--shadow-color);
  --shadow-2: 8px 8px 0px 0px var(--shadow-color);
  --shadow-3: 12px 12px 0px 0px var(--shadow-color);
  --shadow-sm: 2px 2px 0px 0px var(--shadow-color);

  --success: #22c55e;
  --success-bg: #064e3b;
  --info: #38bdf8;
  --info-bg: #0c4a6e;
  --warning: #facc15;
  --warning-bg: #713f12;
  --danger: #f87171;
  --danger-bg: #450a0a;
}

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg);
  color: var(--foreground);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.2s ease, color 0.2s ease;
  overflow-x: hidden;
}

/* Typography Classes */
h1, h2, h3, h4, .font-heading {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
}

/* Layout */
.app-container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 16px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
header {
  padding: 20px 0 16px;
  border-bottom: 2px solid var(--border);
  margin-bottom: 24px;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--foreground);
  cursor: pointer;
}

.brand-icon {
  width: 44px;
  height: 44px;
  background: var(--primary);
  color: var(--primary-fg);
  border: 2px solid var(--border);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.1s ease, box-shadow 0.1s ease;
}

.brand:hover .brand-icon {
  transform: translate(-1px, -1px);
  box-shadow: 5px 5px 0px 0px var(--shadow-color);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1;
}

.brand-title span {
  color: var(--primary);
}

.brand-subtitle {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--foreground-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 3px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: var(--r-full);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--foreground);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--warning);
}

.status-dot.online {
  background-color: var(--success);
  box-shadow: 0 0 0 2px rgba(34, 197, 94, 0.2);
}

/* Neo-Brutalist Buttons */
.nb-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 700;
  padding: 10px 16px;
  border: 2px solid var(--border);
  border-radius: var(--r-md);
  background: var(--surface);
  color: var(--foreground);
  box-shadow: var(--shadow-1);
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.1s ease, box-shadow 0.1s ease, background-color 0.1s ease;
  user-select: none;
  white-space: nowrap;
  -webkit-tap-highlight-color: transparent;
}

.nb-btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0px 0px var(--shadow-color);
}

.nb-btn:active {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0px 0px var(--shadow-color);
}

.nb-btn-primary {
  background: var(--primary);
  color: var(--primary-fg);
}

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

.nb-btn-danger {
  background: var(--danger-bg);
  color: var(--danger);
  border-color: var(--danger);
}

.nb-btn-danger:hover {
  background: var(--danger);
  color: #ffffff;
}

.nb-btn-sm {
  padding: 6px 12px;
  font-size: 0.78rem;
  box-shadow: var(--shadow-sm);
}

.nb-btn-sm:hover {
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0px 0px var(--shadow-color);
}

.nb-btn-sm:active {
  transform: translate(1px, 1px);
  box-shadow: 0px 0px 0px 0px var(--shadow-color);
}

.nb-btn-icon {
  padding: 6px 8px;
}

.nb-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: var(--shadow-sm) !important;
}

/* Neo-Brutalist Card */
.nb-card {
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-2);
  padding: 20px;
  margin-bottom: 24px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.email-box-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.section-label {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--foreground-muted);
}

.email-address-wrapper {
  background: var(--surface-alt);
  border: 2px solid var(--border);
  border-radius: var(--r-md);
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

.email-address-wrapper:hover {
  background: var(--surface-inset);
  border-color: var(--primary);
}

.email-address-text {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--foreground);
  word-break: break-all;
  flex: 1;
  user-select: all;
}

.email-address-text.empty {
  color: var(--foreground-dim);
  font-style: italic;
  font-weight: 500;
  font-family: var(--font-body);
  font-size: 0.95rem;
}

.copy-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 4px 8px;
  border-radius: var(--r-sm);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--foreground-muted);
  box-shadow: var(--shadow-sm);
  transition: all 0.15s ease;
  flex-shrink: 0;
}

.email-address-wrapper:hover .copy-badge {
  background: var(--primary);
  color: var(--primary-fg);
  border-color: var(--border);
}

/* Domain Picker Bar */
.domain-picker-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 14px;
  flex-wrap: wrap;
}

.domain-picker-label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--foreground-muted);
}

.domain-picker-select {
  padding: 8px 12px;
  font-size: 0.85rem;
  flex: 1;
}

/* Action Controls Row */
.action-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 10px;
  margin-top: 16px;
}

/* Custom Email Change Panel */
.custom-panel {
  display: none;
  background: var(--surface-alt);
  border: 2px dashed var(--border);
  border-radius: var(--r-md);
  padding: 16px;
  margin-top: 16px;
}

.custom-panel.open {
  display: block;
  animation: fadeIn 0.2s ease;
}

.input-group {
  display: flex;
  align-items: stretch;
  gap: 8px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.nb-input {
  flex: 1;
  min-width: 160px;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 10px 14px;
  border: 2px solid var(--border);
  border-radius: var(--r-md);
  background: var(--surface);
  color: var(--foreground);
  outline: none;
  box-shadow: var(--shadow-sm);
}

.nb-input:focus {
  border-color: var(--primary);
  box-shadow: 4px 4px 0px 0px var(--primary);
}

.nb-select {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 10px 14px;
  border: 2px solid var(--border);
  border-radius: var(--r-md);
  background: var(--surface);
  color: var(--foreground);
  outline: none;
  box-shadow: var(--shadow-sm);
  cursor: pointer;
}

.input-hint {
  font-size: 0.75rem;
  color: var(--foreground-muted);
  font-weight: 500;
}

/* Inbox Section */
.inbox-section {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.inbox-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--border);
  margin-bottom: 14px;
}

.inbox-title-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.inbox-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 800;
  text-transform: uppercase;
}

.inbox-badge {
  background: var(--primary);
  color: var(--primary-fg);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 800;
  padding: 2px 8px;
  border: 1px solid var(--border);
  border-radius: var(--r-full);
}

.refresh-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
}

.auto-refresh-timer {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--foreground-muted);
  font-weight: 600;
}

.spinning svg {
  animation: spin 0.8s linear infinite;
}

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

/* ===================================================================
   NEW: KATALOG KATEGORI KOTAK MASUK (SEMUA, PROMOSI, SPAM)
   =================================================================== */
.inbox-category-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.inbox-category-bar::-webkit-scrollbar {
  display: none;
}

.category-tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 700;
  border: 2px solid var(--border);
  border-radius: var(--r-md);
  background: var(--surface);
  color: var(--foreground-muted);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
  transition: all 0.12s ease;
  min-height: 38px;
}

.category-tab:hover {
  color: var(--foreground);
  border-color: var(--primary);
  transform: translate(-1px, -1px);
}

.category-tab.active {
  background: var(--primary);
  color: var(--primary-fg);
  border-color: var(--border);
  box-shadow: var(--shadow-1);
}

.category-tab.active .category-badge {
  background: var(--surface);
  color: var(--foreground);
  border-color: var(--border);
}

.category-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 800;
  padding: 1px 6px;
  background: var(--surface-alt);
  color: var(--foreground-muted);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-full);
}

/* Message List */
.messages-container {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
}

.message-item {
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-1);
  padding: 16px;
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  transition: all 0.12s ease;
  position: relative;
  -webkit-tap-highlight-color: transparent;
}

.message-item:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0px 0px var(--shadow-color);
  border-color: var(--primary);
}

.message-item.unread {
  border-left: 6px solid var(--primary);
  background: var(--surface);
}

.message-avatar {
  width: 42px;
  height: 42px;
  border-radius: var(--r-md);
  background: var(--surface-alt);
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--primary);
  flex-shrink: 0;
}

.message-main {
  flex: 1;
  min-width: 0;
}

.message-top-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 4px;
  gap: 8px;
}

.message-sender {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--foreground);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.message-tag {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 800;
  padding: 1px 6px;
  border-radius: var(--r-sm);
  border: 1px solid var(--border);
  margin-left: 6px;
}

.message-tag.promo {
  background: #fef08a;
  color: #854d0e;
}

.message-tag.spam {
  background: #fecaca;
  color: #991b1b;
}

.message-date {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--foreground-muted);
  flex-shrink: 0;
}

.message-subject {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--foreground);
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.message-preview {
  font-size: 0.82rem;
  color: var(--foreground-muted);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Empty State */
.empty-box {
  background: var(--surface);
  border: 2px dashed var(--border);
  border-radius: var(--r-lg);
  padding: 48px 24px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.empty-icon-wrap {
  color: var(--foreground-dim);
}

.empty-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 800;
}

.empty-desc {
  font-size: 0.85rem;
  color: var(--foreground-muted);
  max-width: 360px;
}

.empty-email-tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 4px 10px;
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  color: var(--primary);
  margin-top: 4px;
}

/* Quick Features Info Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin: 24px 0;
}

.feature-item {
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--r-md);
  padding: 16px;
  box-shadow: var(--shadow-1);
}

.feature-icon-title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.feature-icon {
  color: var(--primary);
}

.feature-title {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 800;
}

.feature-desc {
  font-size: 0.78rem;
  color: var(--foreground-muted);
  line-height: 1.4;
}

/* Modal Overlay & Dialog */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  z-index: 999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.modal-backdrop.active {
  display: flex;
  animation: fadeIn 0.15s ease;
}

.nb-modal {
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-3);
  width: 100%;
  max-width: 680px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  animation: modalScale 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
}

.modal-header {
  padding: 16px 20px;
  border-bottom: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: var(--surface-alt);
}

.modal-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--foreground);
  word-break: break-word;
}

.modal-meta-box {
  padding: 12px 20px;
  background: var(--surface);
  border-bottom: 2px solid var(--border-light);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.meta-row {
  display: flex;
  font-size: 0.8rem;
  gap: 8px;
}

.meta-label {
  font-weight: 700;
  color: var(--foreground-muted);
  min-width: 60px;
}

.meta-val {
  font-family: var(--font-mono);
  color: var(--foreground);
  word-break: break-all;
}

.tab-controls {
  display: flex;
  border-bottom: 2px solid var(--border);
  background: var(--surface-alt);
}

.tab-btn {
  padding: 8px 16px;
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 700;
  background: none;
  border: none;
  border-right: 2px solid var(--border);
  color: var(--foreground-muted);
  cursor: pointer;
  transition: all 0.1s ease;
}

.tab-btn.active {
  background: var(--surface);
  color: var(--primary);
}

.modal-body {
  padding: 20px;
  overflow-y: auto;
  flex: 1;
  -webkit-overflow-scrolling: touch;
}

.modal-body.plain {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  white-space: pre-wrap;
  background: var(--surface-inset);
  line-height: 1.6;
}

.modal-footer {
  padding: 12px 20px;
  border-top: 2px solid var(--border);
  background: var(--surface-alt);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
}

.email-iframe-viewer {
  width: 100%;
  min-height: 380px;
  border: none;
  background: #ffffff;
  border-radius: var(--r-sm);
}

/* ===================================================================
   TOAST NOTIFICATIONS (POJOK KANAN ATAS)
   =================================================================== */
.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  left: auto;
  transform: none;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
  width: auto;
  max-width: calc(100vw - 32px);
}

.nb-toast {
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-2);
  padding: 12px 18px;
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--foreground);
  display: flex;
  align-items: center;
  gap: 10px;
  animation: toastSlideInRight 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: auto;
  max-width: 360px;
  word-break: break-word;
}

.nb-toast.success {
  border-color: var(--success);
}

.nb-toast.success .svg-icon {
  color: var(--success);
}

.nb-toast.error {
  border-color: var(--danger);
  color: var(--danger);
}

@keyframes toastSlideInRight {
  from { transform: translateX(110%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* Documentation Section */
.docs-view {
  display: none;
  margin-bottom: 32px;
}

.docs-view.open {
  display: block;
}

.docs-card {
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-2);
  padding: 24px;
  margin-bottom: 20px;
}

.endpoint-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 800;
  padding: 4px 8px;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  margin-right: 8px;
}

.endpoint-tag.get { background: var(--success-bg); color: var(--success); }
.endpoint-tag.post { background: var(--info-bg); color: var(--info); }
.endpoint-tag.delete { background: var(--danger-bg); color: var(--danger); }

.code-block {
  background: var(--surface-inset);
  border: 2px solid var(--border);
  border-radius: var(--r-md);
  padding: 14px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--foreground);
  overflow-x: auto;
  margin: 10px 0;
  white-space: pre;
  line-height: 1.5;
}

/* Footer */
footer {
  padding: 24px 0 32px;
  border-top: 2px solid var(--border);
  margin-top: auto;
  text-align: center;
  font-size: 0.8rem;
  color: var(--foreground-muted);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.footer-info {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes modalScale {
  from { transform: scale(0.95); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

/* SVG Vector Icons System */
.svg-icon {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
  display: inline-block;
  vertical-align: middle;
}

.svg-icon-sm { width: 14px; height: 14px; }
.svg-icon-lg { width: 22px; height: 22px; }
.svg-icon-xl { width: 32px; height: 32px; }

/* ===================================================================
   OPTIMASI UI HANDPHONE (MOBILE RESPONSIVE)
   =================================================================== */
@media (max-width: 600px) {
  .app-container {
    padding: 0 12px;
  }
  
  header {
    padding: 14px 0 12px;
    margin-bottom: 16px;
  }

  .header-inner {
    gap: 8px;
  }

  .brand-icon {
    width: 38px;
    height: 38px;
  }

  .brand-title {
    font-size: 1.2rem;
  }

  .brand-subtitle {
    font-size: 0.68rem;
  }

  .header-actions {
    gap: 6px;
  }

  .header-actions .nb-btn span {
    display: none; /* Sembunyikan teks label di tombol header agar muat rapi di HP */
  }

  .nb-card {
    padding: 14px;
    margin-bottom: 16px;
  }

  .email-address-wrapper {
    padding: 12px 14px;
  }

  .email-address-text {
    font-size: 0.88rem;
  }

  .domain-picker-bar {
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
  }

  .domain-picker-select {
    width: 100%;
  }

  .action-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }

  .action-grid .nb-btn {
    min-height: 42px;
    padding: 8px 10px;
    font-size: 0.8rem;
  }

  .action-grid .nb-btn-primary {
    grid-column: span 2;
  }

  .inbox-header {
    padding-bottom: 10px;
    margin-bottom: 10px;
  }

  .inbox-title {
    font-size: 1.05rem;
  }

  .inbox-category-bar {
    gap: 6px;
    margin-bottom: 12px;
  }

  .category-tab {
    padding: 6px 10px;
    font-size: 0.76rem;
    min-height: 34px;
    flex: 1;
    justify-content: center;
  }

  .message-item {
    padding: 12px;
    gap: 10px;
  }

  .message-avatar {
    width: 34px;
    height: 34px;
    font-size: 0.9rem;
  }

  .message-sender {
    font-size: 0.82rem;
  }

  .message-subject {
    font-size: 0.88rem;
  }

  .message-preview {
    font-size: 0.78rem;
  }

  .toast-container {
    top: 12px;
    right: 12px;
    left: 12px;
    max-width: calc(100vw - 24px);
  }

  .nb-toast {
    max-width: 100%;
    padding: 10px 14px;
    font-size: 0.82rem;
  }

  .nb-modal {
    max-height: 95vh;
    border-radius: var(--r-md);
  }

  .modal-header, .modal-footer {
    padding: 12px 14px;
  }

  .modal-body {
    padding: 14px;
  }

  .modal-title {
    font-size: 1rem;
  }

  .email-iframe-viewer {
    min-height: 300px;
  }
}

@media (min-width: 768px) {
  .app-container {
    padding: 0 24px;
  }
  header {
    padding: 28px 0 20px;
  }
}