/* ==============================================
   Modern Sophistication Layout System
   ============================================== */

/* ==============================================
   Container System - Premium Fluid Layout
   ============================================== */

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-8);
    position: relative;
}

.container-tight {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--space-8);
}

.container-wide {
    width: 100%;
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 var(--space-8);
}

.container-full {
    width: 100%;
    padding: 0 var(--space-8);
}

@media (max-width: 1024px) {
    .container,
    .container-tight,
    .container-wide,
    .container-full {
        padding: 0 var(--space-6);
    }
}

@media (max-width: 768px) {
    .container,
    .container-tight,
    .container-wide,
    .container-full {
        padding: 0 var(--space-4);
    }
}

/* ==============================================
   Grid System - Advanced Grid Architecture
   ============================================== */

.grid-cols-1 {
    grid-template-columns: 1fr;
}

.grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-cols-4 {
    grid-template-columns: repeat(4, 1fr);
}

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

.grid-auto-lg {
    grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

/* レスポンシブグリッド */
@media (max-width: 1024px) {
    .grid-cols-4 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .grid-cols-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .grid-cols-4,
    .grid-cols-3,
    .grid-cols-2,
    .grid-2,
    .grid-3 {
        grid-template-columns: 1fr;
        gap: var(--space-4);
    }
    
    .grid {
        gap: var(--space-4);
    }
}

/* ==============================================
   Flexbox Utilities - フレックスボックス
   ============================================== */

.flex {
    display: flex;
}

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

.flex-row {
    display: flex;
    flex-direction: row;
}

.flex-wrap {
    flex-wrap: wrap;
}

.flex-nowrap {
    flex-wrap: nowrap;
}

/* Alignment */
.items-start {
    align-items: flex-start;
}

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

.items-end {
    align-items: flex-end;
}

.items-stretch {
    align-items: stretch;
}

.justify-start {
    justify-content: flex-start;
}

.justify-center {
    justify-content: center;
}

.justify-end {
    justify-content: flex-end;
}

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

.justify-around {
    justify-content: space-around;
}

.justify-evenly {
    justify-content: space-evenly;
}

/* Flex properties */
.flex-1 {
    flex: 1;
}

.flex-auto {
    flex: auto;
}

.flex-none {
    flex: none;
}

/* ==============================================
   Specialized Layouts - 特別なレイアウト
   ============================================== */

/* Hero レイアウト */
.hero-layout {
    display: flex;
    align-items: center;
    min-height: 100vh;
    position: relative;
}

.hero-content-wrapper {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
    position: relative;
    z-index: 2;
}

/* Challenge Grid - Premium Card Layout */
.challenge-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: var(--space-8);
    margin: var(--space-12) 0;
    position: relative;
}

@media (max-width: 768px) {
    .challenge-grid {
        grid-template-columns: 1fr;
        gap: var(--space-6);
        margin: var(--space-8) 0;
    }
}



/* ==============================================
   Section Layouts - Premium Spacing System
   ============================================== */

.section-layout {
    padding: var(--space-20) 0;
    position: relative;
}

.section-layout-tight {
    padding: var(--space-16) 0;
}

.section-layout-loose {
    padding: var(--space-24) 0;
}

/* Section with background pattern */
.section-pattern {
    position: relative;
    overflow: hidden;
}

.section-pattern::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 60%;
    height: 200%;
    background: radial-gradient(circle, var(--accent-500), transparent);
    opacity: 0.03;
    transform: rotate(45deg);
    pointer-events: none;
}

@media (max-width: 768px) {
    .section-layout {
        padding: var(--space-12) 0;
    }
    
    .section-layout-tight {
        padding: var(--space-8) 0;
    }
    
    .section-layout-loose {
        padding: var(--space-16) 0;
    }
}


/* ==============================================
   Card Layouts - カード専用レイアウト
   ============================================== */

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-6);
}

.card-grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
}

.card-grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

@media (max-width: 1024px) {
    .card-grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .card-grid,
    .card-grid-2,
    .card-grid-3 {
        grid-template-columns: 1fr;
        gap: var(--space-4);
    }
}

/* ==============================================
   Utility Layouts - ユーティリティ
   ============================================== */

.w-full {
    width: 100%;
}

.w-auto {
    width: auto;
}

.h-full {
    height: 100%;
}

.h-auto {
    height: auto;
}

.min-h-screen {
    min-height: 100vh;
}

/* Positioning */
.relative {
    position: relative;
}

.absolute {
    position: absolute;
}

.fixed {
    position: fixed;
}

.sticky {
    position: sticky;
}

.static {
    position: static;
}

/* Z-index */
.z-0 {
    z-index: 0;
}

.z-10 {
    z-index: 10;
}

.z-20 {
    z-index: 20;
}

.z-30 {
    z-index: 30;
}

.z-40 {
    z-index: 40;
}

.z-50 {
    z-index: 50;
}

/* Overflow */
.overflow-hidden {
    overflow: hidden;
}

.overflow-visible {
    overflow: visible;
}

.overflow-auto {
    overflow: auto;
}

.overflow-scroll {
    overflow: scroll;
}

/* Display */
.block {
    display: block;
}

.inline {
    display: inline;
}

.inline-block {
    display: inline-block;
}

.hidden {
    display: none;
}

@media (max-width: 768px) {
    .hidden-mobile {
        display: none;
    }
}

@media (min-width: 769px) {
    .hidden-desktop {
        display: none;
    }
}

/* ==============================================
   Gap and Spacing System
   ============================================== */

.gap-0 { gap: 0; }
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-5 { gap: var(--space-5); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }
.gap-10 { gap: var(--space-10); }
.gap-12 { gap: var(--space-12); }
.gap-16 { gap: var(--space-16); }
.gap-20 { gap: var(--space-20); }
.gap-24 { gap: var(--space-24); }

/* Row and Column Gaps */
.row-gap-4 { row-gap: var(--space-4); }
.row-gap-6 { row-gap: var(--space-6); }
.row-gap-8 { row-gap: var(--space-8); }

.col-gap-4 { column-gap: var(--space-4); }
.col-gap-6 { column-gap: var(--space-6); }
.col-gap-8 { column-gap: var(--space-8); }

/* ==============================================
   Aspect Ratio Utilities
   ============================================== */

.aspect-square {
    aspect-ratio: 1 / 1;
}

.aspect-video {
    aspect-ratio: 16 / 9;
}

.aspect-photo {
    aspect-ratio: 4 / 3;
}

/* ==============================================
   Responsive Utilities
   ============================================== */

@media (max-width: 640px) {
    .sm\:hidden {
        display: none;
    }
    
    .sm\:flex {
        display: flex;
    }
    
    .sm\:block {
        display: block;
    }
}

@media (max-width: 768px) {
    .md\:hidden {
        display: none;
    }
    
    .md\:flex {
        display: flex;
    }
    
    .md\:block {
        display: block;
    }
}

@media (max-width: 1024px) {
    .lg\:hidden {
        display: none;
    }
    
    .lg\:flex {
        display: flex;
    }
    
    .lg\:block {
        display: block;
    }
}