:root {
  --bg-main: #141414;
  --bg-card: #1f1f1f;
  --bg-card-subtle: #262626;
  --bg-hover: #2e2e2e;
  --border-color: #333333;
  --border-hover: #4d4d4d;
  
  --primary: #E50914;
  --primary-hover: #F40612;
  --primary-glow: rgba(229, 9, 20, 0.35);

  --text-main: #FFFFFF;
  --text-muted: #A3A3A3;
  --text-dim: #737373;

  --success: #22c55e;
  --success-bg: rgba(34, 197, 94, 0.12);
  --success-border: rgba(34, 197, 94, 0.3);

  --warning: #f59e0b;
  --warning-bg: rgba(245, 158, 11, 0.12);
  --warning-border: rgba(245, 158, 11, 0.3);

  --danger: #ef4444;
  --danger-bg: rgba(239, 68, 68, 0.12);
  --danger-border: rgba(239, 68, 68, 0.3);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.6);
}

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

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

/* Navbar */
.navbar {
  border-bottom: 1px solid var(--border-color);
  background-color: rgba(20, 20, 20, 0.85);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 50;
}

.nav-container {
  max-width: 780px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.brand-logo {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 24px;
  font-weight: 900;
  color: var(--primary);
  background: linear-gradient(135deg, #E50914 0%, #B20710 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  line-height: 1;
}

.brand-text {
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand-title {
  font-weight: 700;
  font-size: 16px;
  letter-spacing: -0.3px;
}

.brand-badge {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 2px 7px;
  border-radius: var(--radius-full);
  background: rgba(229, 9, 20, 0.15);
  color: #ff4d58;
  border: 1px solid rgba(229, 9, 20, 0.3);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.secure-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  color: #4ade80;
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.25);
}

.status-pill:hover {
  background: var(--bg-hover);
  border-color: var(--border-hover);
}

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

.status-online .status-dot {
  background-color: var(--success);
  box-shadow: 0 0 8px var(--success);
}

.status-online {
  color: #86efac;
  border-color: var(--success-border);
  background: var(--success-bg);
}

.status-offline .status-dot {
  background-color: var(--warning);
  box-shadow: 0 0 8px var(--warning);
}

.status-offline {
  color: #fde047;
  border-color: var(--warning-border);
  background: var(--warning-bg);
}

.btn-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-icon:hover {
  background: var(--bg-hover);
  color: var(--text-main);
  border-color: var(--border-hover);
}

/* Main Content */
.main-content {
  flex: 1;
  display: flex;
  justify-content: center;
  padding: 32px 20px 48px;
}

.card-wrapper {
  width: 100%;
  max-width: 680px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* Hero Section */
.hero-section {
  text-align: center;
  padding: 8px 0;
}

.hero-title {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.6px;
  color: #FFFFFF;
  margin-bottom: 8px;
}

.hero-desc {
  font-size: 15px;
  color: var(--text-muted);
}

/* Form Styles */
.otp-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-label {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
}

.label-hint {
  font-size: 12px;
  font-weight: 400;
  color: var(--text-dim);
}

.input-container {
  position: relative;
  display: flex;
  align-items: center;
}

.input-icon {
  position: absolute;
  left: 14px;
  color: var(--text-dim);
  pointer-events: none;
}

.input-container input {
  width: 100%;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 14px 80px 14px 44px;
  color: var(--text-main);
  font-family: inherit;
  font-size: 15px;
  outline: none;
  transition: all 0.2s ease;
}

.input-container input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
  background-color: #171717;
}

.input-container input::placeholder {
  color: var(--text-dim);
}

.btn-paste {
  position: absolute;
  right: 10px;
  padding: 6px 12px;
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-paste:hover {
  background: var(--bg-hover);
  color: var(--text-main);
}

/* Kind Grid */
.kind-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

@media (max-width: 540px) {
  .kind-grid {
    grid-template-columns: 1fr;
  }
}

.kind-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 16px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
  user-select: none;
}

.kind-card input[type="radio"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.kind-card:hover {
  border-color: var(--border-hover);
  background-color: var(--bg-hover);
}

.kind-card.active {
  border-color: var(--primary);
  background: linear-gradient(180deg, rgba(229, 9, 20, 0.12) 0%, rgba(31, 31, 31, 1) 100%);
  box-shadow: 0 0 0 1px var(--primary);
}

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

.kind-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--bg-card-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: all 0.2s ease;
}

.kind-card.active .kind-icon {
  background: var(--primary);
  color: #FFFFFF;
}

.kind-tag {
  font-size: 11px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: var(--radius-full);
  background: var(--bg-card-subtle);
  color: var(--text-muted);
}

.kind-card.active .kind-tag {
  background: rgba(229, 9, 20, 0.2);
  color: #ff6b74;
}

.tag-warning {
  background: rgba(245, 158, 11, 0.15);
  color: #fbbf24;
}

.kind-title {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 4px;
}

.kind-desc {
  font-size: 12px;
  color: var(--text-muted);
}

/* Steps Box */
.steps-card {
  background: #181818;
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

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

.steps-icon {
  font-size: 16px;
}

.steps-title {
  font-size: 13px;
  font-weight: 700;
  color: #FFFFFF;
}

.steps-list {
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  color: var(--text-muted);
}

.steps-list strong {
  color: var(--text-main);
}

/* Action Container */
.action-container {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 4px;
}

.btn-primary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 15px 24px;
  background-color: var(--primary);
  border: none;
  border-radius: var(--radius-md);
  color: #FFFFFF;
  font-family: inherit;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 4px 16px var(--primary-glow);
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(229, 9, 20, 0.5);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.cooldown-text {
  text-align: center;
  font-size: 12px;
  color: var(--warning);
  font-weight: 500;
}

.btn-spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #FFFFFF;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* Result Box */
.result-box {
  background-color: #171717;
  border: 1px solid var(--success-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  box-shadow: 0 8px 32px rgba(34, 197, 94, 0.1);
  animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.result-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding-bottom: 12px;
}

.result-status-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 700;
  color: #4ade80;
}

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

.otp-wrapper {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.otp-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
}

.otp-code-container {
  display: flex;
  align-items: center;
  gap: 16px;
  background-color: #0c0c0c;
  padding: 16px 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.otp-digits {
  font-family: 'JetBrains Mono', monospace;
  font-size: 38px;
  font-weight: 800;
  letter-spacing: 6px;
  color: #FFFFFF;
  flex: 1;
  text-shadow: 0 0 12px rgba(255, 255, 255, 0.3);
}

.btn-copy {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: var(--primary);
  border: none;
  border-radius: var(--radius-sm);
  color: #FFFFFF;
  font-family: inherit;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

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

.otp-note {
  font-size: 12px;
  color: var(--text-dim);
}

/* Link Wrapper */
.link-wrapper {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.link-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn-link-action {
  flex: 1;
  min-width: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  background-color: var(--primary);
  color: #FFFFFF;
  text-decoration: none;
  font-size: 14px;
  font-weight: 700;
  border-radius: var(--radius-md);
  transition: all 0.2s ease;
}

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

.btn-secondary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 18px;
  background-color: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
}

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

/* Alert Box */
.alert-box {
  display: flex;
  gap: 14px;
  padding: 16px 20px;
  border-radius: var(--radius-md);
  animation: slideDown 0.3s ease-out;
}

.alert-error {
  background-color: var(--danger-bg);
  border: 1px solid var(--danger-border);
}

.alert-icon {
  font-size: 20px;
  line-height: 1.2;
}

.alert-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.alert-title {
  font-size: 14px;
  font-weight: 700;
  color: #fca5a5;
}

.alert-message {
  font-size: 13px;
  color: #fecaca;
  line-height: 1.4;
}

.alert-action {
  margin-top: 8px;
}

.btn-retry {
  padding: 6px 14px;
  background: rgba(239, 68, 68, 0.25);
  border: 1px solid rgba(239, 68, 68, 0.5);
  border-radius: var(--radius-sm);
  color: #FFFFFF;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-retry:hover {
  background: rgba(239, 68, 68, 0.4);
}

/* Footer */
.tool-footer {
  text-align: center;
  font-size: 12px;
  color: var(--text-dim);
  padding: 12px 0 0;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* Modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-dialog {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 500px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  animation: modalScale 0.25s ease-out;
}

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

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

.modal-title-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.modal-title {
  font-size: 17px;
  font-weight: 700;
}

.modal-subtitle {
  font-size: 13px;
  color: var(--text-muted);
}

.btn-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 26px;
  line-height: 1;
  cursor: pointer;
  padding: 0;
}

.btn-close:hover {
  color: #FFFFFF;
}

.modal-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.modal-body input {
  width: 100%;
  background-color: #121212;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  color: var(--text-main);
  font-family: inherit;
  font-size: 14px;
  outline: none;
}

.modal-body input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.input-help {
  font-size: 12px;
  color: var(--text-dim);
  margin-top: 6px;
  line-height: 1.4;
}

.input-help code {
  background: #2a2a2a;
  padding: 2px 5px;
  border-radius: 4px;
  color: #ff858d;
}

.settings-status-box {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  background-color: #121212;
  border: 1px solid var(--border-color);
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding: 16px 24px;
  border-top: 1px solid var(--border-color);
  background-color: #181818;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.btn-save {
  width: auto;
  padding: 10px 20px;
  font-size: 14px;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background-color: #262626;
  border: 1px solid var(--border-color);
  color: #FFFFFF;
  padding: 12px 24px;
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 600;
  box-shadow: var(--shadow-lg);
  pointer-events: none;
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 200;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}