/* ==========================================================================
   Base layer — reset, typography, focus, utilities, print.
   ========================================================================== */

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: var(--font-sans);
    font-size: var(--fs-base);
    line-height: var(--lh-normal);
    color: var(--text);
    background-color: var(--bg);
    background-image: var(--bg-accent);
    background-repeat: no-repeat;
    background-attachment: fixed;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5, h6, p, figure, blockquote, dl, dd {
    margin: 0;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: var(--fw-semibold);
    line-height: var(--lh-tight);
    letter-spacing: var(--ls-tight);
    color: var(--text);
}

ul, ol {
    margin: 0;
    padding: 0;
}

img, svg, video, canvas {
    display: block;
    max-width: 100%;
}

img {
    height: auto;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--dur-fast) var(--ease);
}

a:hover {
    color: var(--primary-hover);
    text-decoration: underline;
    text-underline-offset: 3px;
}

hr {
    border: 0;
    border-top: 1px solid var(--border);
    margin: var(--sp-6) 0;
}

code, kbd, samp {
    font-family: var(--font-mono);
    font-size: 0.9em;
    padding: 2px 6px;
    border-radius: var(--radius-xs);
    background: var(--surface-muted);
    color: var(--text-2);
}

/* ---------- Accessible focus ---------- */
:focus-visible {
    outline: var(--focus-outline);
    outline-offset: 2px;
    border-radius: var(--radius-xs);
}

.btn:focus-visible,
.form-control:focus-visible,
.icon-btn:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

.skip-link {
    position: absolute;
    inset-inline-start: var(--sp-4);
    inset-block-start: -60px;
    z-index: 200;
    padding: var(--sp-3) var(--sp-4);
    background: var(--primary);
    color: var(--primary-contrast);
    border-radius: var(--radius-sm);
    font-weight: var(--fw-semibold);
    transition: inset-block-start var(--dur) var(--ease);
}

.skip-link:focus {
    inset-block-start: var(--sp-3);
    color: var(--primary-contrast);
    text-decoration: none;
}

/* ---------- Selection ---------- */
::selection {
    background: var(--brand-200);
    color: var(--brand-900);
}

[data-theme="dark"] ::selection {
    background: rgba(76, 141, 255, 0.4);
    color: var(--text);
}

/* ---------- Scrollbars (subtle, never jarring) ---------- */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--border-strong) transparent;
}

*::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

*::-webkit-scrollbar-track {
    background: transparent;
}

*::-webkit-scrollbar-thumb {
    background: var(--border-strong);
    border-radius: var(--radius-pill);
    border: 2px solid transparent;
    background-clip: content-box;
}

*::-webkit-scrollbar-thumb:hover {
    background: var(--text-faint);
    background-clip: content-box;
}

/* ---------- Typography helpers ---------- */
.page-title {
    font-size: var(--fs-2xl);
    font-weight: var(--fw-bold);
}

.section-title {
    font-size: var(--fs-lg);
    font-weight: var(--fw-semibold);
}

.text-muted {
    color: var(--text-muted);
}

.text-2 {
    color: var(--text-2);
}

.text-xs {
    font-size: var(--fs-xs);
}

.text-sm {
    font-size: var(--fs-sm);
}

.text-nowrap {
    white-space: nowrap;
}

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

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

.fw-medium {
    font-weight: var(--fw-medium);
}

.fw-semibold {
    font-weight: var(--fw-semibold);
}

.fw-bold {
    font-weight: var(--fw-bold);
}

.num {
    font-variant-numeric: tabular-nums;
    font-feature-settings: "tnum" 1;
    unicode-bidi: plaintext;
}

/* Money and quantity figures always read left-to-right, even in Arabic. */
.num,
.money,
.stat__value,
.table .num,
.table .money {
    direction: ltr;
    unicode-bidi: embed;
}

.truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.visually-hidden {
    position: absolute !important;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0 0 0 0);
    clip-path: inset(50%);
    white-space: nowrap;
    border: 0;
}

/* Screen-reader-only text that becomes visible when focused. */
.focusable-hidden:focus-within {
    position: static;
    width: auto;
    height: auto;
    clip: auto;
}
/* ---------- Utility primitives (small, composable, no page-specific CSS) ---------- */
.stack {
    display: flex;
    flex-direction: column;
    gap: var(--sp-4);
}

.stack-sm {
    display: flex;
    flex-direction: column;
    gap: var(--sp-2);
}

.stack-lg {
    display: flex;
    flex-direction: column;
    gap: var(--sp-6);
}

.row {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
}

.row-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--sp-4);
    flex-wrap: wrap;
}

.row-end {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--sp-3);
    flex-wrap: wrap;
}

.wrap {
    flex-wrap: wrap;
}

.grow {
    flex: 1 1 auto;
    min-width: 0;
}

.grid {
    display: grid;
    gap: var(--sp-5);
}

/* Responsive auto-fit grid used by dashboards, card lists and forms. */
.grid-cards {
    display: grid;
    gap: var(--sp-5);
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
}

.grid-cards-sm {
    display: grid;
    gap: var(--sp-4);
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.grid-2 {
    display: grid;
    gap: var(--sp-5);
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.grid-3 {
    display: grid;
    gap: var(--sp-5);
    grid-template-columns: 2fr 1fr;
}

.grid-main-side {
    display: grid;
    gap: var(--sp-5);
    grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
}

@media (max-width: 1024px) {
    .grid-3,
    .grid-main-side {
        grid-template-columns: minmax(0, 1fr);
    }
}

.span-full {
    grid-column: 1 / -1;
}

.mt-0 { margin-block-start: 0; }
.mt-2 { margin-block-start: var(--sp-2); }
.mt-4 { margin-block-start: var(--sp-4); }
.mt-6 { margin-block-start: var(--sp-6); }
.mb-0 { margin-block-end: 0; }
.mb-2 { margin-block-end: var(--sp-2); }
.mb-4 { margin-block-end: var(--sp-4); }
.mb-6 { margin-block-end: var(--sp-6); }

.hide {
    display: none !important;
}

.hide-sm-down {
    display: initial;
}

@media (max-width: 640px) {
    .hide-sm-down {
        display: none !important;
    }
}

@media (min-width: 641px) {
    .show-sm-down {
        display: none !important;
    }
}

/* ---------- Page section rhythm ---------- */
.section {
    display: flex;
    flex-direction: column;
    gap: var(--sp-4);
}

.section + .section {
    margin-block-start: var(--sp-6);
}

/* ---------- Motion preferences ---------- */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
        scroll-behavior: auto !important;
    }
}

/* ---------- Print (reports, rosters, invoices) ---------- */
@media print {
    body {
        background: #fff;
        color: #000;
        font-size: 11pt;
    }

    .app-bar,
    .app-footer,
    .breadcrumbs,
    .page-header__actions,
    .toolbar,
    .pagination,
    .toast-region,
    .no-print {
        display: none !important;
    }

    .card,
    .table-wrap {
        box-shadow: none;
        border-color: #999;
    }

    .container {
        max-width: none;
        padding: 0;
    }

    a[href]::after {
        content: "";
    }
}