/* ==========================================================================
   SPDLAB.hu — layout.css
   Global layout utilities: containers, grids, flex helpers, spacing.
   ========================================================================== */

/* --------------------------------------------------------------------------
   Container system
   -------------------------------------------------------------------------- */

/* Base container — centered, horizontally padded */
.container {
    width: 100%;
    margin-inline: auto;
    padding-inline: var(--container-padding-x);
    max-width: var(--container-xl);
}

.container-xs {
    max-width: var(--container-xs);
}
.container-sm {
    max-width: var(--container-sm);
}
.container-md {
    max-width: var(--container-md);
}
.container-lg {
    max-width: var(--container-lg);
}
.container-xl {
    max-width: var(--container-xl);
}
.container-2xl {
    max-width: var(--container-2xl);
}

/* Narrow reading container for centered text sections */
.container-narrow {
    width: 100%;
    margin-inline: auto;
    padding-inline: var(--container-padding-x);
    max-width: 720px;
}

@media (min-width: 768px) {
    .container,
    .container-xs,
    .container-sm,
    .container-md,
    .container-lg,
    .container-xl,
    .container-2xl,
    .container-narrow {
        padding-inline: var(--container-padding-x-md);
    }
}

@media (min-width: 1024px) {
    .container,
    .container-lg,
    .container-xl,
    .container-2xl {
        padding-inline: var(--container-padding-x-lg);
    }
}

/* --------------------------------------------------------------------------
   Section wrapper
   -------------------------------------------------------------------------- */

.section {
    position: relative;
    padding-block: var(--section-gap);
    overflow: hidden;
}

.section--sm {
    padding-block: var(--section-gap-sm);
}
.section--lg {
    padding-block: var(--section-gap-lg);
}

/* Alternate section backgrounds */
.section--alt {
    background-color: var(--color-bg-subtle);
    border-top: var(--border-subtle);
    border-bottom: var(--border-subtle);
}

.section--surface {
    background-color: var(--color-surface);
}

/* --------------------------------------------------------------------------
   Section header — the label + heading + subtext block
   -------------------------------------------------------------------------- */

.section-header {
    margin-bottom: var(--space-12);
}

.section-header--center {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.section-header__label {
    margin-bottom: var(--space-4);
}

.section-header__heading {
    margin-bottom: var(--space-4);
}

.section-header__subtext {
    color: var(--color-text-secondary);
    max-width: 52ch;
}

/* --------------------------------------------------------------------------
   Grid system
   -------------------------------------------------------------------------- */

.grid {
    display: grid;
    gap: var(--space-6);
}

/* Fixed column grids */
.grid-1 {
    grid-template-columns: 1fr;
}
.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}
.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}
.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

/* Auto-fill responsive grids */
.grid-auto-sm {
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}

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

.grid-auto-lg {
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
}

/* Mobile-first responsive grids */
.grid-cols-1 {
    grid-template-columns: 1fr;
}

@media (min-width: 640px) {
    .grid-cols-sm-2 {
        grid-template-columns: repeat(2, 1fr);
    }
    .grid-cols-sm-3 {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 768px) {
    .grid-cols-md-2 {
        grid-template-columns: repeat(2, 1fr);
    }
    .grid-cols-md-3 {
        grid-template-columns: repeat(3, 1fr);
    }
    .grid-cols-md-4 {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (min-width: 1024px) {
    .grid-cols-lg-2 {
        grid-template-columns: repeat(2, 1fr);
    }
    .grid-cols-lg-3 {
        grid-template-columns: repeat(3, 1fr);
    }
    .grid-cols-lg-4 {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Gap variants */
.gap-2 {
    gap: var(--space-2);
}
.gap-3 {
    gap: var(--space-3);
}
.gap-4 {
    gap: var(--space-4);
}
.gap-6 {
    gap: var(--space-6);
}
.gap-8 {
    gap: var(--space-8);
}
.gap-10 {
    gap: var(--space-10);
}
.gap-12 {
    gap: var(--space-12);
}

/* --------------------------------------------------------------------------
   Flex utilities
   -------------------------------------------------------------------------- */

.flex {
    display: flex;
}
.flex-col {
    flex-direction: column;
}
.flex-row {
    flex-direction: row;
}
.flex-wrap {
    flex-wrap: wrap;
}
.flex-nowrap {
    flex-wrap: nowrap;
}

.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;
}

.self-start {
    align-self: flex-start;
}
.self-center {
    align-self: center;
}
.self-end {
    align-self: flex-end;
}
.self-stretch {
    align-self: stretch;
}

.flex-1 {
    flex: 1;
}
.flex-auto {
    flex: auto;
}
.flex-none {
    flex: none;
}
.shrink-0 {
    flex-shrink: 0;
}
.grow-0 {
    flex-grow: 0;
}

/* --------------------------------------------------------------------------
   Spacing utilities
   -------------------------------------------------------------------------- */

/* Margin */
.mt-0 {
    margin-top: 0;
}
.mt-2 {
    margin-top: var(--space-2);
}
.mt-4 {
    margin-top: var(--space-4);
}
.mt-6 {
    margin-top: var(--space-6);
}
.mt-8 {
    margin-top: var(--space-8);
}
.mt-12 {
    margin-top: var(--space-12);
}
.mt-16 {
    margin-top: var(--space-16);
}

.mb-0 {
    margin-bottom: 0;
}
.mb-2 {
    margin-bottom: var(--space-2);
}
.mb-4 {
    margin-bottom: var(--space-4);
}
.mb-6 {
    margin-bottom: var(--space-6);
}
.mb-8 {
    margin-bottom: var(--space-8);
}
.mb-12 {
    margin-bottom: var(--space-12);
}
.mb-16 {
    margin-bottom: var(--space-16);
}

.mx-auto {
    margin-inline: auto;
}
.my-auto {
    margin-block: auto;
}

/* Padding */
.p-0 {
    padding: 0;
}
.p-2 {
    padding: var(--space-2);
}
.p-4 {
    padding: var(--space-4);
}
.p-6 {
    padding: var(--space-6);
}
.p-8 {
    padding: var(--space-8);
}

.px-4 {
    padding-inline: var(--space-4);
}
.px-6 {
    padding-inline: var(--space-6);
}
.px-8 {
    padding-inline: var(--space-8);
}

.py-4 {
    padding-block: var(--space-4);
}
.py-6 {
    padding-block: var(--space-6);
}
.py-8 {
    padding-block: var(--space-8);
}

/* --------------------------------------------------------------------------
   Sizing utilities
   -------------------------------------------------------------------------- */

.w-full {
    width: 100%;
}
.h-full {
    height: 100%;
}
.w-auto {
    width: auto;
}

.max-w-full {
    max-width: 100%;
}
.max-w-xs {
    max-width: var(--container-xs);
}
.max-w-sm {
    max-width: var(--container-sm);
}
.max-w-md {
    max-width: var(--container-md);
}
.max-w-prose {
    max-width: 65ch;
}

/* --------------------------------------------------------------------------
   Position utilities
   -------------------------------------------------------------------------- */

.relative {
    position: relative;
}
.absolute {
    position: absolute;
}
.fixed {
    position: fixed;
}
.sticky {
    position: sticky;
}

.inset-0 {
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
}

.overflow-hidden {
    overflow: hidden;
}
.overflow-visible {
    overflow: visible;
}

/* --------------------------------------------------------------------------
   Display utilities
   -------------------------------------------------------------------------- */

.block {
    display: block;
}
.inline-block {
    display: inline-block;
}
.inline {
    display: inline;
}
.hidden {
    display: none;
}

/* --------------------------------------------------------------------------
   Divider / separator
   -------------------------------------------------------------------------- */

.divider {
    width: 100%;
    height: 1px;
    background-color: var(--color-border);
    border: none;
    margin-block: var(--space-8);
}

.divider--accent {
    background: linear-gradient(
        90deg,
        transparent 0%,
        var(--color-accent-muted) 50%,
        transparent 100%
    );
}

/* --------------------------------------------------------------------------
   Aspect ratios
   -------------------------------------------------------------------------- */

.aspect-square {
    aspect-ratio: 1;
}
.aspect-video {
    aspect-ratio: 16 / 9;
}
.aspect-3-2 {
    aspect-ratio: 3 / 2;
}

/* --------------------------------------------------------------------------
   Z-index utilities
   -------------------------------------------------------------------------- */

.z-below {
    z-index: var(--z-below);
}
.z-base {
    z-index: var(--z-base);
}
.z-raised {
    z-index: var(--z-raised);
}
.z-sticky {
    z-index: var(--z-sticky);
}

/* --------------------------------------------------------------------------
   Responsive visibility helpers
   -------------------------------------------------------------------------- */

@media (max-width: 767px) {
    .hide-mobile {
        display: none !important;
    }
}

@media (min-width: 768px) {
    .hide-tablet {
        display: none !important;
    }
}

@media (min-width: 1024px) {
    .hide-desktop {
        display: none !important;
    }
}