/**
 * Layouts
 * レイアウトシステム
 */

/* ===========================================
   1. Containers
   =========================================== */

/* Base Container */
.container {
  width: 100%;
  max-width: var(--container-xl);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-md);
  padding-right: var(--space-md);
}

/* Container Variants */
.container-fluid {
  max-width: none;
}

.container-sm {
  max-width: var(--container-sm);
}

.container-md {
  max-width: var(--container-md);
}

.container-lg {
  max-width: var(--container-lg);
}

.container-narrow {
  max-width: var(--container-narrow);
}

.container-compact {
  max-width: var(--container-compact);
}

/* ===========================================
   2. Page Layouts
   =========================================== */

/* Page Wrapper */
.page-wrapper {
  min-height: calc(100vh - 200px);
  padding: var(--space-xl) 0;
  background-color: var(--color-bg-light);
}

.page-wrapper-white {
  background-color: var(--color-bg);
}

/* Page Header */
.page-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.page-title {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 600;
  color: var(--color-text);
  margin: 0 0 var(--space-sm) 0;
}

.page-subtitle {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin: 0;
}

/* Page Content */
.page-content {
  background-color: var(--color-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--space-xl);
}

@media (min-width: 768px) {
  .page-content {
    padding: var(--space-2xl);
  }
}

/* ===========================================
   3. Two Column Layout
   =========================================== */

.two-column {
  display: grid;
  gap: var(--space-lg);
}

@media (min-width: 768px) {
  .two-column {
    grid-template-columns: 1fr 350px;
  }

  .two-column-reverse {
    grid-template-columns: 350px 1fr;
  }
}

.main-column {
  min-width: 0; /* Prevent overflow */
}

.side-column {
  min-width: 0;
}

/* Sticky Sidebar */
.side-column-sticky {
  position: sticky;
  top: var(--space-lg);
  height: fit-content;
}

/* ===========================================
   4. Section
   =========================================== */

.section {
  padding: var(--space-2xl) 0;
}

.section-sm {
  padding: var(--space-lg) 0;
}

.section-lg {
  padding: var(--space-3xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.section-title {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 600;
  color: var(--color-text);
  margin: 0 0 var(--space-sm) 0;
}

.section-subtitle {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin: 0;
}

/* ===========================================
   5. Grid System
   =========================================== */

/* Auto-fit Grid */
.grid-auto {
  display: grid;
  gap: var(--space-lg);
}

.grid-auto-sm {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.grid-auto-md {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-auto-lg {
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
}

/* Product Grid */
.product-grid {
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: repeat(2, 1fr);
}

@media (min-width: 640px) {
  .product-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .product-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ===========================================
   6. Stack
   =========================================== */

.stack {
  display: flex;
  flex-direction: column;
}

.stack-xs { gap: var(--space-xs); }
.stack-sm { gap: var(--space-sm); }
.stack-md { gap: var(--space-md); }
.stack-lg { gap: var(--space-lg); }
.stack-xl { gap: var(--space-xl); }

/* ===========================================
   7. Inline
   =========================================== */

.inline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
}

.inline-xs { gap: var(--space-xs); }
.inline-sm { gap: var(--space-sm); }
.inline-md { gap: var(--space-md); }
.inline-lg { gap: var(--space-lg); }

/* ===========================================
   8. Media Object
   =========================================== */

.media {
  display: flex;
  gap: var(--space-md);
}

.media-figure {
  flex-shrink: 0;
}

.media-body {
  flex: 1;
  min-width: 0;
}

/* ===========================================
   9. Center
   =========================================== */

.center {
  display: flex;
  align-items: center;
  justify-content: center;
}

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

/* ===========================================
   10. Aspect Ratio Box
   =========================================== */

.aspect-box {
  position: relative;
  width: 100%;
}

.aspect-box::before {
  content: "";
  display: block;
  padding-top: 100%; /* 1:1 ratio */
}

.aspect-box-16-9::before {
  padding-top: 56.25%; /* 16:9 ratio */
}

.aspect-box-4-3::before {
  padding-top: 75%; /* 4:3 ratio */
}

.aspect-box-3-2::before {
  padding-top: 66.67%; /* 3:2 ratio */
}

.aspect-box > * {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ===========================================
   11. Panel
   =========================================== */

.panel {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  background-color: var(--color-bg-lighter);
  border-bottom: 1px solid var(--color-border);
}

.panel-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin: 0;
}

.panel-body {
  padding: var(--space-lg);
}

.panel-footer {
  padding: var(--space-md) var(--space-lg);
  border-top: 1px solid var(--color-border);
  background-color: var(--color-bg-lighter);
}

/* ===========================================
   12. Info Box
   =========================================== */

.info-box {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.info-box-label {
  font-size: 12px;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.info-box-value {
  font-size: 16px;
  font-weight: 500;
  color: var(--color-text);
}

/* ===========================================
   13. Steps / Progress
   =========================================== */

.steps {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
}

.step {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-text-muted);
}

.step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  font-size: 14px;
  font-weight: 600;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-full);
  background-color: var(--color-bg);
}

.step-label {
  font-size: 14px;
  display: none;
}

@media (min-width: 640px) {
  .step-label {
    display: block;
  }
}

.step-line {
  width: 40px;
  height: 2px;
  background-color: var(--color-border);
}

@media (min-width: 640px) {
  .step-line {
    width: 60px;
  }
}

/* Step States */
.step.is-active {
  color: var(--color-primary);
}

.step.is-active .step-number {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: #ffffff;
}

.step.is-completed {
  color: var(--color-text);
}

.step.is-completed .step-number {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: #ffffff;
}

.step.is-completed + .step-line {
  background-color: var(--color-primary);
}

/* ===========================================
   14. Order Summary
   =========================================== */

.summary-card {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  overflow: hidden;
}

.summary-header {
  padding: var(--space-md) var(--space-lg);
  background: var(--color-bg-lighter);
  border-bottom: 1px solid var(--color-border);
}

.summary-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin: 0;
}

.summary-body {
  padding: var(--space-lg);
}

.summary-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-sm) 0;
}

.summary-row + .summary-row {
  border-top: 1px solid var(--color-border-light);
}

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

.summary-value {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
}

.summary-total {
  border-top: 2px solid var(--color-border);
  margin-top: var(--space-sm);
  padding-top: var(--space-md);
}

.summary-total .summary-label {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
}

.summary-total .summary-value {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
}

/* ===========================================
   15. Product Item
   =========================================== */

.product-item {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  background-color: var(--color-bg);
}

.product-item + .product-item {
  border-top: 1px solid var(--color-border-light);
}

.product-item-image {
  width: 80px;
  height: 80px;
  flex-shrink: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-bg-light);
}

.product-item-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-item-info {
  flex: 1;
  min-width: 0;
}

.product-item-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: var(--space-xs);
}

.product-item-meta {
  font-size: 13px;
  color: var(--color-text-secondary);
}

.product-item-price {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  text-align: right;
}

/* ===========================================
   16. Address Display
   =========================================== */

.address-block {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text);
}

.address-name {
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.address-zip {
  color: var(--color-text-secondary);
}

/* ===========================================
   17. Responsive Utilities
   =========================================== */

/* Container padding adjustment */
@media (min-width: 768px) {
  .container {
    padding-left: var(--space-lg);
    padding-right: var(--space-lg);
  }
}

@media (min-width: 1024px) {
  .container {
    padding-left: var(--space-xl);
    padding-right: var(--space-xl);
  }
}