/* ==========================================================================
   KSMC CHECKOUT — style.css
   Professional SaaS Billing & Checkout Theme (Linear/Stripe Style)
   ========================================================================== */

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

:root {
  /* Colors */
  --accent: #7c3aed;                  /* Purple */
  --accent-hover: #6d28d9;
  --accent-muted: #f5f3ff;            /* Purple 50 */
  --accent-border: #ddd6fe;           /* Purple 200 */

  --emerald: #10b981;
  --red: #ef4444;

  --bg-dark: #f1f5f9;                 /* Slate 100 */
  --bg-black: #f8fafc;                /* Slate 50 background */
  --bg-card: #ffffff;                 /* Solid white cards */
  --bg-surface: #ffffff;              /* Solid white cards */
  --bg-input: #ffffff;                /* Input background */

  --border-default: #e2e8f0;          /* Slate 200 border */
  --border-hover: #cbd5e1;            /* Slate 300 border */
  --border-active: #7c3aed;           /* Purple border active */

  --text-primary: #0f172a;            /* Slate 900 */
  --text-secondary: #475569;          /* Slate 600 */
  --text-muted: #64748b;              /* Slate 500 */

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-title: 'Outfit', 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Spacing & Borders */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-pill: 40px;
  --container-width: 1100px;

  --shadow-card: 0 1px 3px 0 rgba(0,0,0,0.05), 0 1px 2px 0 rgba(0,0,0,0.03);
  --shadow-neon: 0 0 15px rgba(124, 58, 237, 0.1);
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body.checkout-body {
  font-family: var(--font-sans);
  background-color: var(--bg-black);
  color: var(--text-primary);
  overflow-x: hidden;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

.text-center {
  text-align: center;
}

/* ==========================================================================
   HEADER
   ========================================================================== */
.checkout-header {
  height: 80px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--border-default);
  background-color: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 100;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-text {
  font-family: var(--font-title);
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.logo-subtext {
  font-size: 9px;
  font-weight: 700;
  background: var(--accent);
  color: #fff;
  padding: 1px 6px;
  border-radius: 4px;
  letter-spacing: 1px;
  margin-left: 4px;
}

.back-link {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
  transition: color 0.2s ease;
}

.back-link:hover {
  color: var(--text-primary);
}

/* ==========================================================================
   STEPPER
   ========================================================================== */
.stepper-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 40px auto 48px auto;
  max-width: 480px;
}

.stepper-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  position: relative;
  z-index: 2;
}

.step-num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-default);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 14px;
  color: var(--text-secondary);
  transition: all 0.3s ease;
}

.step-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  transition: color 0.3s ease;
}

.stepper-line {
  flex-grow: 1;
  height: 2px;
  background-color: var(--border-default);
  margin: -16px 12px 0 12px;
  position: relative;
  z-index: 1;
  transition: background-color 0.3s ease;
}

/* Step States */
.stepper-step.active .step-num {
  background-color: var(--accent-muted);
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 12px rgba(124, 58, 237, 0.2);
}

.stepper-step.active .step-label {
  color: var(--text-primary);
}

.stepper-step.done .step-num {
  background-color: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.stepper-step.done .step-label {
  color: var(--text-secondary);
}

.stepper-line.done {
  background-color: var(--accent);
}

/* ==========================================================================
   LAYOUT
   ========================================================================== */
.checkout-main {
  flex-grow: 1;
  padding-bottom: 80px;
}

.checkout-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 32px;
  align-items: start;
}

@media (max-width: 900px) {
  .checkout-layout {
    grid-template-columns: 1fr;
  }
}

.checkout-content {
  background-color: var(--bg-card);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-card);
}

@media (max-width: 600px) {
  .checkout-content {
    padding: 24px;
  }
}

/* Step Panels */
.step-panel {
  display: none;
}

.step-panel.active {
  display: block;
  animation: fadeIn 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.panel-header {
  margin-bottom: 32px;
}

.panel-title {
  font-family: var(--font-title);
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.75px;
  margin-bottom: 8px;
}

.panel-subtitle {
  font-size: 14px;
  color: var(--text-secondary);
}

.panel-actions {
  display: flex;
  margin-top: 32px;
  border-top: 1px solid var(--border-default);
  padding-top: 24px;
}

.panel-actions.justify-between {
  justify-content: space-between;
}

.btn-next {
  width: 100%;
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
}

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

.btn--primary:hover {
  background-color: var(--accent-hover);
  box-shadow: 0 0 15px rgba(124, 58, 237, 0.25);
}

.btn--primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn--ghost {
  background-color: rgba(255, 255, 255, 0.03);
  color: var(--text-primary);
  border: 1px solid var(--border-default);
}

.btn--ghost:hover {
  background-color: rgba(255, 255, 255, 0.08);
}

/* ==========================================================================
   STEP 1: PLANS SELECTOR
   ========================================================================== */
.plans-selector-group {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.plan-option-row {
  background-color: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 20px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.plan-option-row:hover {
  border-color: var(--border-hover);
  background-color: var(--bg-dark);
}

.plan-option-row.selected {
  border-color: var(--accent);
  background-color: var(--accent-muted);
  box-shadow: var(--shadow-neon);
}

/* Plan Radio Checkbox */
.plan-radio-circle {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.plan-option-row.selected .plan-radio-circle {
  border-color: var(--accent);
}

.plan-radio-circle::after {
  content: '';
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--accent);
  transform: scale(0);
  transition: transform 0.2s ease;
}

.plan-option-row.selected .plan-radio-circle::after {
  transform: scale(1);
}

.plan-opt-info {
  display: flex;
  flex-direction: column;
}

.plan-opt-name {
  font-family: var(--font-title);
  font-size: 16px;
  font-weight: 700;
}

.plan-opt-specs {
  font-size: 12px;
  color: var(--text-secondary);
}

.plan-opt-price {
  font-family: var(--font-title);
  font-size: 18px;
  font-weight: 800;
}

/* ==========================================================================
   STEP 2: AUTHENTICATION Form
   ========================================================================== */
.auth-box {
  background-color: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: 32px;
}

@media (max-width: 600px) {
  .auth-box {
    padding: 20px;
  }
}

.auth-tabs {
  display: flex;
  border-bottom: 1px solid var(--border-default);
  margin-bottom: 24px;
}

.auth-tab {
  flex: 1;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-title);
  font-size: 14px;
  font-weight: 600;
  padding: 12px;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
}

.auth-tab.active {
  color: var(--accent);
}

.auth-tab::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--accent);
  transform: scaleX(0);
  transition: transform 0.2s ease;
}

.auth-tab.active::after {
  transform: scaleX(1);
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 600px) {
  .form-grid {
    grid-template-columns: 1fr;
  }
}

.full-width {
  grid-column: 1 / -1;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-group input {
  background-color: var(--bg-input);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  color: var(--text-primary);
  font-size: 13px;
  outline: none;
  font-family: var(--font-sans);
  transition: all 0.2s ease;
}

.form-group input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(124, 58, 237, 0.12);
}

.input-hint {
  font-size: 11px;
  color: var(--text-muted);
}

.auth-divider {
  display: flex;
  align-items: center;
  text-align: center;
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 600;
  margin: 24px 0;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  border-bottom: 1px solid var(--border-default);
}

.auth-divider span {
  padding: 0 12px;
}

.btn-google {
  width: 100%;
  background-color: #fff;
  color: #0f172a;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border-color: #e2e8f0;
}

.btn-google:hover {
  background-color: #f8fafc;
}

/* Email Verification styling */
.verification-panel {
  background-color: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: 32px;
}

.verif-title {
  font-family: var(--font-title);
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
}

.verif-desc {
  font-size: 13px;
  color: var(--text-secondary);
}

.verif-spinner-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin: 32px 0;
}

.spinner {
  width: 32px;
  height: 32px;
  border: 4px solid var(--border-default);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

.verif-status {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
}

.verif-hint {
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.verif-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.verif-actions .btn {
  width: 100%;
}

/* ==========================================================================
   STEP 3: PAYMENT & PIX
   ========================================================================== */
.pix-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  margin-bottom: 24px;
}

.pix-qr-wrapper {
  background: #ffffff;
  padding: 12px;
  border-radius: var(--radius-md);
  width: 180px;
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 16px rgba(0,0,0,0.2);
}

.pix-qr-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.pix-copy-paste-group {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.pix-copy-paste-group label {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.pix-copy-row {
  display: flex;
  gap: 8px;
}

.pix-copy-row input {
  flex: 1;
  background-color: var(--bg-dark);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  color: var(--text-primary);
  font-size: 13px;
  font-family: var(--font-mono);
  outline: none;
}

.btn-copy {
  padding: 0 16px;
  white-space: nowrap;
}

/* Deployment Console */
.deploy-console {
  background-color: #06090f;
  border: 1px solid #1f242c;
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 12px;
  color: #c9d1d9;
  box-shadow: 0 8px 24px rgba(0,0,0,0.25);
  margin-bottom: 24px;
  overflow: hidden;
}

.console-bar {
  background-color: #161b22;
  border-bottom: 1px solid #1f242c;
  padding: 8px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.console-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.console-dot--red { background-color: #ff5f56; }
.console-dot--yellow { background-color: #ffbd2e; }
.console-dot--green { background-color: #27c93f; }

.console-title {
  font-size: 11px;
  color: var(--text-muted);
  margin-left: 8px;
}

.console-body {
  padding: 16px;
  height: 200px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.ck-log-line {
  margin: 0;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-all;
}

/* Progress bar */
.deploy-progress-container {
  margin-top: 16px;
}

.progress-header {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.progress-track {
  height: 8px;
  background-color: var(--bg-surface);
  border-radius: var(--radius-pill);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background-color: var(--accent);
  border-radius: var(--radius-pill);
  transition: width 0.3s ease;
}

/* Success View */
.success-icon-badge {
  background-color: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.2);
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
  box-shadow: 0 0 20px rgba(16, 185, 129, 0.15);
}

.success-info-panel {
  background-color: var(--bg-dark);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-top: 24px;
  text-align: left;
}

.success-info-title {
  font-family: var(--font-title);
  font-size: 15px;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--border-default);
  padding-bottom: 8px;
}

.success-details {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 16px;
}

.detail-row {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-secondary);
}

.detail-row strong {
  color: var(--text-primary);
}

.success-note {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ==========================================================================
   SIDEBAR & ORDER SUMMARY
   ========================================================================== */
.checkout-sidebar {
  position: sticky;
  top: 112px;
}

.order-summary-panel {
  background-color: var(--bg-card);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-card);
}

.sidebar-title {
  font-family: var(--font-title);
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border-default);
  padding-bottom: 12px;
}

.summary-plan-info {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 20px;
}

.plan-details {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.plan-badge {
  font-size: 9px;
  font-weight: 700;
  color: var(--accent);
  background-color: var(--accent-muted);
  border: 1px solid var(--accent-border);
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  align-self: flex-start;
  letter-spacing: 0.5px;
}

.plan-name {
  font-family: var(--font-title);
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
}

.plan-period {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-muted);
  background-color: var(--bg-dark);
  border: 1px solid var(--border-default);
  padding: 3px 6px;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
}

.summary-specs-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border-default);
  padding-bottom: 20px;
}

.summary-specs-list .ck-spec-row {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-secondary);
}

.summary-specs-list .ck-spec-icon {
  display: none; /* Hide icons in the summary sidebar to save space */
}

.summary-specs-list .ck-spec-label {
  color: var(--text-secondary);
}

.summary-specs-list .ck-spec-value {
  font-weight: 600;
  color: var(--text-primary);
}

.coupon-section {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border-default);
  padding-bottom: 20px;
}

.coupon-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.coupon-row {
  display: flex;
  gap: 8px;
}

.coupon-row input {
  flex: 1;
  background-color: var(--bg-input);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  color: var(--text-primary);
  font-size: 12px;
  outline: none;
  font-family: var(--font-sans);
}

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

.btn-coupon-apply {
  padding: 6px 14px;
  font-size: 12px;
}

.coupon-msg {
  font-size: 11px;
  font-weight: 600;
  margin-top: 4px;
}

.total-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.total-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.total-value {
  font-family: var(--font-title);
  font-size: 24px;
  font-weight: 800;
  color: var(--text-primary);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.checkout-footer {
  background-color: var(--bg-black);
  padding: 40px 0;
  border-top: 1px solid var(--border-default);
  margin-top: auto;
}

.footer-legal {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.footer-links {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.footer-links a {
  margin: 0 8px;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--text-primary);
}

.footer-disclaimer {
  font-size: 11px;
  color: var(--text-muted);
  max-width: 800px;
  margin: 0 auto;
  line-height: 1.5;
}