/* ==========================================================================
   Layout — Containers, Grid, Responsive
   ========================================================================== */

/* Containers */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--side-padding);
    padding-right: var(--side-padding);
}

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

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

/* Anchor offset for sticky header — ensures hash-link targets aren't hidden */
section[id],
li[id],
div[id]:not(.faq-answer):not([class*="form"]),
h1[id], h2[id], h3[id], h4[id],
article[id],
.faq-item[id] {
    scroll-margin-top: calc(var(--header-height, 80px) + 1.25rem);
}

/* Sections */
.section {
    padding-top: var(--section-padding);
    padding-bottom: var(--section-padding);
}

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

.section--bg-light {
    background-color: var(--bg-secondary);
}

.section--bg-dark {
    background-color: var(--bg-dark);
    color: var(--text-on-dark);
}

.section--bg-dark h2,
.section--bg-dark h3,
.section--bg-dark h4 {
    color: var(--text-on-dark);
}

.section--bg-dark p {
    color: rgba(255, 255, 255, 0.85);
}

/* Section Header */
.section-header {
    margin-bottom: var(--space-3xl);
}

.section-header--center {
    text-align: center;
    max-width: 680px;
    margin-left: auto;
    margin-right: auto;
}

.section-label {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: var(--text-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--accent-primary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: var(--space-sm);
}

.section--bg-dark .section-label {
    color: var(--accent-secondary-light);
}

.section-header p {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    margin-top: var(--space-md);
    max-width: 600px;
}

.section-header--center p {
    margin-left: auto;
    margin-right: auto;
}

/* Grid system */
.grid {
    display: grid;
    gap: var(--space-xl);
}

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

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

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

/* Flex utilities */
.flex {
    display: flex;
}

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

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

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

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

/* Two column layout (content + sidebar/form) */
.layout-split {
    display: grid;
    gap: var(--space-3xl);
    align-items: start;
}

.layout-split--60-40 {
    grid-template-columns: 1fr 1fr;
}

.layout-split--content-form {
    grid-template-columns: 1.2fr 1fr;
}

/* Responsive */
@media (max-width: 1024px) {
    .grid--4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .layout-split--60-40,
    .layout-split--content-form {
        grid-template-columns: 1fr;
    }
}

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

    .grid--2 {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .grid--3,
    .grid--4 {
        grid-template-columns: 1fr;
    }
}

/* Main content area */
.site-main {
    min-height: 60vh;
}

/* Text alignment utilities */
.text-center { text-align: center; }
.text-left { text-align: left; }

/* Spacing utilities */
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }

.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }

/* Visually hidden (accessible) */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Extra small screen adjustments */
@media (max-width: 360px) {
    :root {
        --side-padding: 1rem;
        --section-padding: 2.5rem;
    }

    .grid--3,
    .grid--4,
    .grid--2 {
        grid-template-columns: 1fr;
    }
}

/* Large screen containment */
@media (min-width: 1600px) {
    .container--wide {
        max-width: 1440px;
    }
}

/* Tablet intermediate grid */
@media (min-width: 769px) and (max-width: 1024px) {
    .grid--4 {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Text clamping utilities */
.line-clamp-1 { display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden; }
.line-clamp-2 { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.line-clamp-3 { display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }

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

/* Text alignment utilities */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* Safe area padding for edge-to-edge layouts */
@supports (padding-left: env(safe-area-inset-left)) {
    .container {
        padding-left: max(var(--side-padding), env(safe-area-inset-left));
        padding-right: max(var(--side-padding), env(safe-area-inset-right));
    }
}