// _layout.scss
// Gumi.css v1.0.0 - Layout and Navigation

// Containers
.container {
    @include responsive-container;

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

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

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

    &-2xl {
        max-width: var(--gumi-container-2xl);
    }

    &-fluid {
        max-width: 100%;
    }
}

// Content sections
.content {
    padding: var(--gumi-space-fluid-md) 0;
}

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

// Header
.header {
    position: relative;
    z-index: var(--gumi-z-sticky);
    backdrop-filter: blur(20px);
    background: var(--gumi-background);
    border-bottom: 1px solid var(--gumi-border);
    padding: var(--gumi-space-4) 0;
    @include transition;

    &.lock-header {
        position: sticky;
        top: 0;
    }
}

// Navigation
.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--gumi-space-4);

    &-brand {
        display: flex;
        align-items: center;
        gap: var(--gumi-space-3);
        font-weight: var(--gumi-font-semibold);
        font-size: var(--gumi-text-lg);
        color: var(--gumi-foreground);
        text-decoration: none;

        &:hover {
            text-decoration: none;
        }
    }

    &-nav {
        display: flex;
        align-items: center;
        list-style: none;
        padding: 0;
        margin: 0;
        gap: var(--gumi-space-6);
    }

    &-link {
        color: var(--gumi-muted);
        font-weight: var(--gumi-font-medium);
        text-decoration: none;
        @include transition;

        &:hover,
        &.active {
            color: var(--gumi-foreground);
            text-decoration: none;
        }
    }

    &-toggle {
        display: none;
        background: none;
        border: none;
        cursor: pointer;
        padding: var(--gumi-space-2);
        color: var(--gumi-foreground);

        @include media-down('md') {
            display: block;
        }
    }

    @include media-down('md') {
        flex-wrap: wrap;

        &-nav {
            flex-basis: 100%;
            flex-direction: column;
            gap: var(--gumi-space-3);
            padding: var(--gumi-space-4) 0;
            display: none;

            &.show {
                display: flex;
            }
        }
    }
}

// Sidebar
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    width: 260px;
    background: var(--gumi-surface);
    border-right: 1px solid var(--gumi-border);
    padding: var(--gumi-space-6);
    overflow-y: auto;
    z-index: var(--gumi-z-fixed);
    transform: translateX(-100%);
    @include transition;

    &.show {
        transform: translateX(0);
    }

    &-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.5);
        z-index: var(--gumi-z-fixed - 1);
        opacity: 0;
        visibility: hidden;
        @include transition;

        &.show {
            opacity: 1;
            visibility: visible;
        }
    }

    @include media('lg') {
        position: sticky;
        top: var(--gumi-space-4);
        height: auto;
        transform: none;
        z-index: auto;
    }
}

// Hero
.hero {
    padding: var(--gumi-space-fluid-xl) 0;
    text-align: center;
    background: radial-gradient(
        ellipse at center,
        var(--gumi-primary-light) 0%,
        transparent 70%
    );

    h1 {
        margin-bottom: var(--gumi-space-4);
        background: linear-gradient(135deg, var(--gumi-foreground), var(--gumi-primary));
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }

    p {
        max-width: 600px;
        margin: 0 auto var(--gumi-space-8);
    }
}

// Footer
.footer {
    padding: var(--gumi-space-16) 0;
    border-top: 1px solid var(--gumi-border);
    background: var(--gumi-surface);
    margin-top: auto;

    &-links {
        display: flex;
        gap: var(--gumi-space-6);
        justify-content: center;
        flex-wrap: wrap;
        margin-bottom: var(--gumi-space-4);

        a {
            color: var(--gumi-muted);

            &:hover {
                color: var(--gumi-foreground);
            }
        }
    }
}

// Grid
.grid {
    display: grid;
    gap: var(--gumi-space-4);

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

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

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

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

    &-cols-5 {
        grid-template-columns: repeat(5, 1fr);
    }

    &-cols-6 {
        grid-template-columns: repeat(6, 1fr);
    }

    // Responsive - Mobile first approach
    @include media-down('sm') {
        &-cols-2,
        &-cols-3,
        &-cols-4,
        &-cols-5,
        &-cols-6 {
            grid-template-columns: 1fr;
        }
    }

    @include media-between('sm', 'md') {
        &-cols-3,
        &-cols-4,
        &-cols-5,
        &-cols-6 {
            grid-template-columns: repeat(2, 1fr);
        }
    }

    @include media-between('md', 'lg') {
        &-cols-4,
        &-cols-5,
        &-cols-6 {
            grid-template-columns: repeat(3, 1fr);
        }
    }

    // Explicit responsive classes
    @include media('sm') {
        &-sm-cols-1 { grid-template-columns: repeat(1, 1fr); }
        &-sm-cols-2 { grid-template-columns: repeat(2, 1fr); }
        &-sm-cols-3 { grid-template-columns: repeat(3, 1fr); }
    }

    @include media('md') {
        &-md-cols-1 { grid-template-columns: repeat(1, 1fr); }
        &-md-cols-2 { grid-template-columns: repeat(2, 1fr); }
        &-md-cols-3 { grid-template-columns: repeat(3, 1fr); }
        &-md-cols-4 { grid-template-columns: repeat(4, 1fr); }
    }

    @include media('lg') {
        &-lg-cols-1 { grid-template-columns: repeat(1, 1fr); }
        &-lg-cols-2 { grid-template-columns: repeat(2, 1fr); }
        &-lg-cols-3 { grid-template-columns: repeat(3, 1fr); }
        &-lg-cols-4 { grid-template-columns: repeat(4, 1fr); }
        &-lg-cols-5 { grid-template-columns: repeat(5, 1fr); }
        &-lg-cols-6 { grid-template-columns: repeat(6, 1fr); }
    }
}

// Flexbox utilities
.flex {
    display: flex;

    &-col {
        flex-direction: column;
    }

    &-row {
        flex-direction: row;
    }

    &-wrap {
        flex-wrap: wrap;
    }

    &-nowrap {
        flex-wrap: nowrap;
    }

    &-1 {
        flex: 1;
    }

    &-auto {
        flex: auto;
    }

    &-none {
        flex: none;
    }
}

.items {
    &-start {
        align-items: flex-start;
    }

    &-center {
        align-items: center;
    }

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

    &-baseline {
        align-items: baseline;
    }

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

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

    &-center {
        justify-content: center;
    }

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

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

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

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

// Gap utilities
.gap {
    &-0 {
        gap: 0;
    }

    &-1 {
        gap: var(--gumi-space-1);
    }

    &-2 {
        gap: var(--gumi-space-2);
    }

    &-3 {
        gap: var(--gumi-space-3);
    }

    &-4 {
        gap: var(--gumi-space-4);
    }

    &-5 {
        gap: var(--gumi-space-5);
    }

    &-6 {
        gap: var(--gumi-space-6);
    }

    &-8 {
        gap: var(--gumi-space-8);
    }
}

// Responsive flexbox utilities
@include media('sm') {
    .flex-sm-row { flex-direction: row; }
    .flex-sm-col { flex-direction: column; }
    .flex-sm-wrap { flex-wrap: wrap; }
    .flex-sm-nowrap { flex-wrap: nowrap; }
    
    .items-sm-start { align-items: flex-start; }
    .items-sm-center { align-items: center; }
    .items-sm-end { align-items: flex-end; }
    
    .justify-sm-start { justify-content: flex-start; }
    .justify-sm-center { justify-content: center; }
    .justify-sm-end { justify-content: flex-end; }
    .justify-sm-between { justify-content: space-between; }
}

@include media('md') {
    .flex-md-row { flex-direction: row; }
    .flex-md-col { flex-direction: column; }
    .flex-md-wrap { flex-wrap: wrap; }
    .flex-md-nowrap { flex-wrap: nowrap; }
    
    .items-md-start { align-items: flex-start; }
    .items-md-center { align-items: center; }
    .items-md-end { align-items: flex-end; }
    
    .justify-md-start { justify-content: flex-start; }
    .justify-md-center { justify-content: center; }
    .justify-md-end { justify-content: flex-end; }
    .justify-md-between { justify-content: space-between; }
}

@include media('lg') {
    .flex-lg-row { flex-direction: row; }
    .flex-lg-col { flex-direction: column; }
    .flex-lg-wrap { flex-wrap: wrap; }
    .flex-lg-nowrap { flex-wrap: nowrap; }
    
    .items-lg-start { align-items: flex-start; }
    .items-lg-center { align-items: center; }
    .items-lg-end { align-items: flex-end; }
    
    .justify-lg-start { justify-content: flex-start; }
    .justify-lg-center { justify-content: center; }
    .justify-lg-end { justify-content: flex-end; }
    .justify-lg-between { justify-content: space-between; }
}

// Responsive spacing utilities
@include media('sm') {
    .p-sm-0 { padding: 0; }
    .p-sm-1 { padding: var(--gumi-space-1); }
    .p-sm-2 { padding: var(--gumi-space-2); }
    .p-sm-3 { padding: var(--gumi-space-3); }
    .p-sm-4 { padding: var(--gumi-space-4); }
    .p-sm-6 { padding: var(--gumi-space-6); }
    .p-sm-8 { padding: var(--gumi-space-8); }
    
    .m-sm-0 { margin: 0; }
    .m-sm-1 { margin: var(--gumi-space-1); }
    .m-sm-2 { margin: var(--gumi-space-2); }
    .m-sm-3 { margin: var(--gumi-space-3); }
    .m-sm-4 { margin: var(--gumi-space-4); }
    .m-sm-6 { margin: var(--gumi-space-6); }
    .m-sm-8 { margin: var(--gumi-space-8); }
}

@include media('md') {
    .p-md-0 { padding: 0; }
    .p-md-1 { padding: var(--gumi-space-1); }
    .p-md-2 { padding: var(--gumi-space-2); }
    .p-md-3 { padding: var(--gumi-space-3); }
    .p-md-4 { padding: var(--gumi-space-4); }
    .p-md-6 { padding: var(--gumi-space-6); }
    .p-md-8 { padding: var(--gumi-space-8); }
    
    .m-md-0 { margin: 0; }
    .m-md-1 { margin: var(--gumi-space-1); }
    .m-md-2 { margin: var(--gumi-space-2); }
    .m-md-3 { margin: var(--gumi-space-3); }
    .m-md-4 { margin: var(--gumi-space-4); }
    .m-md-6 { margin: var(--gumi-space-6); }
    .m-md-8 { margin: var(--gumi-space-8); }
}

@include media('lg') {
    .p-lg-0 { padding: 0; }
    .p-lg-1 { padding: var(--gumi-space-1); }
    .p-lg-2 { padding: var(--gumi-space-2); }
    .p-lg-3 { padding: var(--gumi-space-3); }
    .p-lg-4 { padding: var(--gumi-space-4); }
    .p-lg-6 { padding: var(--gumi-space-6); }
    .p-lg-8 { padding: var(--gumi-space-8); }
    
    .m-lg-0 { margin: 0; }
    .m-lg-1 { margin: var(--gumi-space-1); }
    .m-lg-2 { margin: var(--gumi-space-2); }
    .m-lg-3 { margin: var(--gumi-space-3); }
    .m-lg-4 { margin: var(--gumi-space-4); }
    .m-lg-6 { margin: var(--gumi-space-6); }
    .m-lg-8 { margin: var(--gumi-space-8); }
}

// Responsive text utilities
@include media('sm') {
    .text-sm-left { text-align: left; }
    .text-sm-center { text-align: center; }
    .text-sm-right { text-align: right; }
}

@include media('md') {
    .text-md-left { text-align: left; }
    .text-md-center { text-align: center; }
    .text-md-right { text-align: right; }
}

@include media('lg') {
    .text-lg-left { text-align: left; }
    .text-lg-center { text-align: center; }
    .text-lg-right { text-align: right; }
}