/* Samsung One UI Light Design System */
:root {
  --oneui-bg: #F2F4F8;
  --oneui-surface: #FFFFFF;
  --oneui-primary: #0381FE;
  --oneui-primary-hover: #006fe6;
  --oneui-primary-active: #005ec4;
  --oneui-success: #10B981;
  --oneui-success-bg: #ECFDF5;
  --oneui-warning: #F59E0B;
  --oneui-warning-bg: #FEF3C7;
  --oneui-danger: #EF4444;
  
  --oneui-text-title: #0F172A;
  --oneui-text-body: #334155;
  --oneui-text-muted: #64748B;
  --oneui-border-light: #E2E8F0;

  --radius-card: 28px;
  --radius-pill: 9999px;
  --radius-subcard: 18px;

  --shadow-card: 0 12px 32px rgba(15, 23, 42, 0.05), 0 2px 6px rgba(15, 23, 42, 0.03);
  --shadow-button: 0 4px 14px rgba(3, 129, 254, 0.28);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}

body {
  background-color: var(--oneui-bg);
  color: var(--oneui-text-body);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
}

.app-layout {
  width: 100%;
  max-width: 480px;
}

.oneui-wrapper {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Header Area */
.oneui-header {
  text-align: center;
  padding: 8px 0;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.brand-pill {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--oneui-primary);
  background: rgba(3, 129, 254, 0.08);
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  margin-bottom: 8px;
}

.page-title {
  font-size: 28px;
  font-weight: 800;
  color: var(--oneui-text-title);
  letter-spacing: -0.5px;
  margin-bottom: 2px;
}

.page-subtitle {
  font-size: 14px;
  color: var(--oneui-text-muted);
  font-weight: 500;
  margin-bottom: 12px;
}

/* Badges */
.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 600;
  transition: all 0.3s ease;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: currentColor;
}

.badge-connected {
  background-color: #E6F7F0;
  color: #059669;
}

.badge-disconnected {
  background-color: var(--oneui-warning-bg);
  color: #B45309;
}

.badge-checking {
  background-color: #E2E8F0;
  color: #475569;
}

/* Cards */
.oneui-card {
  background: var(--oneui-surface);
  border-radius: var(--radius-card);
  padding: 32px 24px;
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(255, 255, 255, 0.8);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 18px;
}

/* Card Principal */
.counter-section {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.counter-number {
  font-size: 64px;
  font-weight: 800;
  color: var(--oneui-text-title);
  line-height: 1;
  letter-spacing: -1px;
}

.counter-label {
  font-size: 15px;
  font-weight: 600;
  color: var(--oneui-text-muted);
  margin-top: 4px;
}

/* Model Badge & Preview */
.model-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #F8FAFC;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--oneui-border-light);
}

.model-stars {
  color: #F59E0B;
  font-size: 15px;
  letter-spacing: 2px;
}

.model-tag {
  font-size: 12px;
  font-weight: 700;
  color: #475569;
}

.model-quote {
  font-size: 13px;
  color: var(--oneui-text-muted);
  font-style: italic;
  line-height: 1.5;
  background: #F8FAFC;
  padding: 12px 16px;
  border-radius: var(--radius-subcard);
  border-left: 3px solid var(--oneui-primary);
  text-align: left;
  width: 100%;
}

/* Buttons */
.btn-oneui {
  width: 100%;
  height: 52px;
  border-radius: var(--radius-pill);
  font-size: 16px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: none;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
}

.btn-primary {
  background-color: var(--oneui-primary);
  color: #FFFFFF;
  box-shadow: var(--shadow-button);
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--oneui-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(3, 129, 254, 0.35);
}

.btn-primary:active:not(:disabled) {
  background-color: var(--oneui-primary-active);
  transform: translateY(1px);
}

.btn-primary:disabled {
  background-color: #E2E8F0;
  color: #94A3B8;
  cursor: not-allowed;
  box-shadow: none;
}

.btn-download {
  background-color: #0F172A;
  color: #FFFFFF;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.2);
}

.btn-download:hover {
  background-color: #1E293B;
  transform: translateY(-1px);
}

.btn-text-link {
  background: none;
  border: none;
  font-size: 13px;
  font-weight: 600;
  color: var(--oneui-text-muted);
  cursor: pointer;
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  transition: all 0.2s ease;
}

.btn-text-link:hover {
  color: var(--oneui-primary);
  background-color: rgba(3, 129, 254, 0.05);
}

/* Progress Area */
.progress-section {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.progress-bar-bg {
  width: 100%;
  height: 8px;
  background-color: #E2E8F0;
  border-radius: var(--radius-pill);
  overflow: hidden;
}

.progress-bar-active {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, #0381FE, #38BDF8);
  border-radius: var(--radius-pill);
  transition: width 0.3s ease;
}

.progress-text {
  font-size: 13px;
  font-weight: 600;
  color: var(--oneui-primary);
}

/* Success Section */
.success-section {
  background-color: var(--oneui-success-bg);
  border-radius: var(--radius-subcard);
  padding: 14px 18px;
  width: 100%;
  display: flex;
  align-items: center;
  gap: 12px;
  text-align: left;
}

.success-icon-circle {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background-color: var(--oneui-success);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 14px;
  flex-shrink: 0;
}

.success-title {
  font-size: 14px;
  color: #065F46;
  display: block;
}

.success-subtitle {
  font-size: 12px;
  color: #047857;
}

/* Guide Card */
.card-guide {
  border: 1.5px dashed #CBD5E1;
  background: #FAFBFD;
}

.card-icon-pill {
  font-size: 32px;
}

.card-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--oneui-text-title);
}

.card-description {
  font-size: 13px;
  color: var(--oneui-text-muted);
  line-height: 1.5;
}

.install-steps {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
  text-align: left;
  margin-top: 4px;
}

.step-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 12px;
  color: var(--oneui-text-body);
  line-height: 1.4;
}

.step-num {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background-color: #E2E8F0;
  color: var(--oneui-text-title);
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  flex-shrink: 0;
}

.step-item code {
  background: #E2E8F0;
  padding: 1px 4px;
  border-radius: 4px;
  font-size: 11px;
}

/* Footer */
.oneui-footer {
  text-align: center;
  font-size: 12px;
  color: var(--oneui-text-muted);
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 0;
}

.footer-dot {
  opacity: 0.5;
}