:root {
    --ciff-wine-950: oklch(20% 0.055 18);
    --ciff-wine-900: oklch(26% 0.082 18);
    --ciff-wine-800: oklch(33% 0.105 18);
    --ciff-wine-700: oklch(40% 0.12 18);
    --ciff-wine-100: oklch(94% 0.025 18);
    --ciff-gold-600: oklch(58% 0.09 78);
    --ciff-gold-300: oklch(79% 0.07 78);
    --ink-950: oklch(18% 0.018 323);
    --ink-800: oklch(30% 0.016 323);
    --ink-600: oklch(47% 0.014 323);
    --ink-500: oklch(57% 0.012 323);
    --paper-50: oklch(98.5% 0.008 78);
    --paper-100: oklch(96.5% 0.012 78);
    --paper-200: oklch(92.5% 0.014 78);
    --paper-300: oklch(86% 0.015 78);
    --success-800: oklch(38% 0.09 148);
    --success-100: oklch(94% 0.035 148);
    --danger-800: oklch(43% 0.15 26);
    --danger-100: oklch(94% 0.04 26);
    --warning-800: oklch(46% 0.09 72);
    --warning-100: oklch(94% 0.045 82);
    --info-800: oklch(39% 0.08 248);
    --info-100: oklch(94% 0.025 248);
    --focus: oklch(64% 0.14 78);
    --space-1: .25rem;
    --space-2: .5rem;
    --space-3: .75rem;
    --space-4: 1rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-12: 3rem;
    --radius-sm: .35rem;
    --radius-md: .6rem;
    --radius-lg: .9rem;
    --shadow-sm: 0 1px 2px oklch(20% 0.03 18 / .08);
    --shadow-md: 0 12px 32px oklch(20% 0.03 18 / .10);
    --ease-out: cubic-bezier(.25, 1, .5, 1);
    --sidebar-width: 16rem;
    color-scheme: light;
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }
.visually-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

html { min-height: 100%; scroll-behavior: smooth; }

body {
    min-height: 100vh;
    margin: 0;
    background: var(--paper-100);
    color: var(--ink-950);
    font-family: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 1rem;
    line-height: 1.5;
    font-kerning: normal;
    text-rendering: optimizeLegibility;
}

button, input, select, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: var(--ciff-wine-700); }
a:hover { color: var(--ciff-wine-900); }

:focus-visible {
    outline: 3px solid var(--focus);
    outline-offset: 3px;
}

.skip-link {
    position: fixed;
    left: var(--space-4);
    top: var(--space-4);
    z-index: 1000;
    transform: translateY(-200%);
    background: var(--paper-50);
    color: var(--ink-950);
    padding: var(--space-3) var(--space-4);
    border: 2px solid var(--ciff-wine-800);
    border-radius: var(--radius-sm);
}
.skip-link:focus { transform: translateY(0); }

.app-shell {
    display: grid;
    grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
    min-height: 100vh;
}

.sidebar {
    position: sticky;
    top: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    background: var(--ciff-wine-950);
    color: var(--paper-50);
    padding: var(--space-6) var(--space-4);
}

.brand {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    min-height: 3.5rem;
    color: var(--paper-50);
    text-decoration: none;
}

.brand-mark {
    display: grid;
    place-items: center;
    width: 2.5rem;
    height: 2.5rem;
    border: 1px solid var(--ciff-gold-300);
    color: var(--ciff-gold-300);
    font-family: Georgia, "Times New Roman", serif;
    font-weight: 700;
    letter-spacing: .04em;
}

.brand-copy { display: grid; line-height: 1.15; }
.brand-copy strong { font-family: Georgia, "Times New Roman", serif; font-size: 1.05rem; }
.brand-copy small { color: var(--ciff-gold-300); font-size: .7rem; letter-spacing: .08em; text-transform: uppercase; }

.nav-label {
    margin: var(--space-8) var(--space-3) var(--space-2);
    color: var(--ciff-gold-300);
    font-size: .72rem;
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
}

.primary-nav { display: grid; gap: var(--space-1); }
.primary-nav a {
    display: flex;
    align-items: center;
    min-height: 2.75rem;
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    color: var(--paper-200);
    text-decoration: none;
    font-weight: 600;
    transition: background-color 180ms var(--ease-out), color 180ms var(--ease-out);
}
.primary-nav a:hover { background: var(--ciff-wine-900); color: var(--paper-50); }
.primary-nav a[aria-current="page"] { background: var(--ciff-wine-700); color: var(--paper-50); }

.sidebar-foot {
    margin-top: auto;
    padding: var(--space-6) var(--space-3) 0;
    border-top: 1px solid oklch(79% 0.07 78 / .3);
    color: var(--ciff-gold-300);
    font-family: Georgia, "Times New Roman", serif;
    font-size: .78rem;
    letter-spacing: .1em;
    text-transform: uppercase;
}

.workspace { min-width: 0; }
.topbar {
    min-height: 4.5rem;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-4);
    padding: var(--space-3) clamp(1rem, 3vw, 2.5rem);
    background: var(--paper-50);
    border-bottom: 1px solid var(--paper-300);
}

.user-meta { text-align: right; line-height: 1.25; }
.user-meta strong { display: block; }
.role-label { color: var(--ink-600); font-size: .8rem; text-transform: capitalize; }

.page-content {
    width: min(100%, 100rem);
    margin: 0 auto;
    padding: clamp(1.25rem, 3vw, 2.5rem);
}

.page-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-6);
    margin-bottom: var(--space-8);
}
.page-header-copy { max-width: 48rem; }
.eyebrow {
    margin: 0 0 var(--space-2);
    color: var(--ciff-wine-700);
    font-size: .75rem;
    font-weight: 800;
    letter-spacing: .12em;
    text-transform: uppercase;
}
h1, h2, h3 { color: var(--ink-950); text-wrap: balance; }
h1 {
    margin: 0;
    font-family: Georgia, "Times New Roman", serif;
    font-size: clamp(2rem, 3vw, 3.25rem);
    line-height: 1.05;
    letter-spacing: -.025em;
}
h2 { margin: 0; font-size: 1.25rem; line-height: 1.25; }
h3 { margin: 0; font-size: 1rem; }
.page-description { max-width: 65ch; margin: var(--space-3) 0 0; color: var(--ink-600); }
.header-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: var(--space-2); }

.btn {
    min-height: 2.75rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: .65rem 1rem;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    background: var(--ciff-wine-800);
    color: var(--paper-50);
    font-weight: 700;
    line-height: 1.2;
    text-decoration: none;
    cursor: pointer;
    transition: background-color 150ms var(--ease-out), border-color 150ms var(--ease-out), transform 100ms var(--ease-out);
}
.btn:hover { background: var(--ciff-wine-900); color: var(--paper-50); }
.btn:active { transform: translateY(1px); }
.btn.secondary { background: var(--paper-50); border-color: var(--paper-300); color: var(--ink-950); }
.btn.secondary:hover { background: var(--paper-200); border-color: var(--ink-500); }
.btn.danger { background: var(--paper-50); border-color: var(--danger-800); color: var(--danger-800); }
.btn.danger:hover { background: var(--danger-100); }
.btn.success { background: var(--success-800); }
.btn[disabled], .btn[aria-disabled="true"] { opacity: .55; cursor: not-allowed; transform: none; }
.btn.wide { width: 100%; }
.btn.compact { min-height: 2.5rem; padding: .5rem .75rem; font-size: .9rem; }

.alert {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    margin-bottom: var(--space-6);
    padding: var(--space-4);
    border: 1px solid var(--success-800);
    border-radius: var(--radius-md);
    background: var(--success-100);
    color: var(--success-800);
    font-weight: 650;
}
.alert.error { border-color: var(--danger-800); background: var(--danger-100); color: var(--danger-800); }

.panel {
    background: var(--paper-50);
    border: 1px solid var(--paper-300);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}
.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    padding: var(--space-4) var(--space-6);
    border-bottom: 1px solid var(--paper-300);
}
.panel-body { padding: var(--space-6); }

.operations-list { border-top: 1px solid var(--paper-300); }
.operation-link {
    display: grid;
    grid-template-columns: minmax(8rem, 14rem) minmax(0, 1fr) auto;
    gap: var(--space-6);
    align-items: center;
    min-height: 4.75rem;
    padding: var(--space-4) 0;
    border-bottom: 1px solid var(--paper-300);
    color: var(--ink-950);
    text-decoration: none;
}
.operation-link:hover .operation-title { color: var(--ciff-wine-700); }
.operation-title { font-weight: 800; }
.operation-copy { color: var(--ink-600); }
.operation-arrow { color: var(--ciff-wine-700); font-size: 1.25rem; }

.toolbar {
    display: flex;
    align-items: flex-end;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}
.toolbar .field { flex: 1; }

.field { display: grid; gap: var(--space-2); }
.field + .field { margin-top: var(--space-4); }
label, .field-label { color: var(--ink-800); font-weight: 700; }
.field-hint { color: var(--ink-600); font-size: .875rem; }
input:not([type="checkbox"]):not([type="radio"]), select, textarea {
    width: 100%;
    min-height: 2.75rem;
    padding: .65rem .8rem;
    border: 1px solid var(--paper-300);
    border-radius: var(--radius-md);
    background: var(--paper-50);
    color: var(--ink-950);
}
input::placeholder, textarea::placeholder { color: var(--ink-500); opacity: 1; }
input:hover, select:hover, textarea:hover { border-color: var(--ink-500); }
input:focus, select:focus, textarea:focus { border-color: var(--ciff-wine-700); box-shadow: 0 0 0 3px var(--ciff-wine-100); outline: 0; }
.checkbox-row { display: flex; align-items: center; gap: var(--space-3); min-height: 2.75rem; }
.checkbox-row input { width: 1.25rem; height: 1.25rem; accent-color: var(--ciff-wine-700); }
.form-actions { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-top: var(--space-6); }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-4) var(--space-6); }
.form-grid .field + .field { margin-top: 0; }
.form-grid .full { grid-column: 1 / -1; }
.error-text { margin: var(--space-1) 0 0; color: var(--danger-800); font-size: .875rem; }

.table-wrap {
    overflow-x: auto;
    background: var(--paper-50);
    border: 1px solid var(--paper-300);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}
table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
th, td { padding: .85rem 1rem; border-bottom: 1px solid var(--paper-300); text-align: left; vertical-align: middle; }
th { background: var(--paper-200); color: var(--ink-800); font-size: .78rem; letter-spacing: .03em; text-transform: uppercase; white-space: nowrap; }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover { background: var(--paper-100); }
.cell-actions { display: flex; flex-wrap: nowrap; align-items: center; gap: var(--space-2); }
.cell-actions form { margin: 0; }
.numeric { text-align: right; }

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    min-height: 1.75rem;
    padding: .2rem .55rem;
    border-radius: 999px;
    font-size: .82rem;
    font-weight: 750;
    white-space: nowrap;
}
.status-badge::before { content: ""; width: .5rem; height: .5rem; border-radius: 50%; background: currentColor; }
.status-badge.success { color: var(--success-800); background: var(--success-100); }
.status-badge.danger { color: var(--danger-800); background: var(--danger-100); }
.status-badge.warning { color: var(--warning-800); background: var(--warning-100); }
.status-badge.neutral { color: var(--ink-600); background: var(--paper-200); }

.pagination-row { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); margin-top: var(--space-4); color: var(--ink-600); }
.pagination-row nav { overflow-x: auto; }

.scanner-layout { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(18rem, .8fr); gap: var(--space-6); align-items: start; }
.arabic-instructions {
    margin-bottom: var(--space-6);
    padding: var(--space-4) var(--space-6);
    border-inline-start: 4px solid var(--ciff-gold-600);
}
.arabic-instructions h2 { font-family: "Segoe UI", Tahoma, sans-serif; }
.arabic-instructions ol { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-4); margin: var(--space-3) 0; padding-inline-start: 1.5rem; }
.arabic-instructions p { margin: var(--space-3) 0 0; color: var(--ciff-wine-800); }
.mode-switch {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    padding: var(--space-1);
    background: var(--paper-200);
    border-radius: var(--radius-md);
}
.mode-switch button { min-height: 3rem; border: 0; border-radius: var(--radius-sm); background: transparent; color: var(--ink-800); font-weight: 800; cursor: pointer; }
.mode-switch button[aria-selected="true"] { background: var(--ciff-wine-800); color: var(--paper-50); box-shadow: var(--shadow-sm); }
.scanner-stage { padding: var(--space-6); }
.scan-state { text-align: center; padding: var(--space-6) 0; }
.scan-state-icon { display: grid; place-items: center; width: 4rem; height: 4rem; margin: 0 auto var(--space-4); border-radius: 50%; background: var(--success-100); color: var(--success-800); font-size: 2rem; font-weight: 900; }
.scan-state-icon[data-tone="ready"] { background: var(--ciff-wine-100); color: var(--ciff-wine-800); }
.scan-state-icon[data-tone="processing"] { background: var(--info-100); color: var(--info-800); }
.scan-state-icon[data-tone="error"] { background: var(--danger-100); color: var(--danger-800); }
.scan-state h2 { font-family: Georgia, "Times New Roman", serif; font-size: 1.75rem; }
.scan-state p { margin: var(--space-2) 0 0; color: var(--ink-600); }
.reader-frame { position: relative; overflow: hidden; width: 100%; aspect-ratio: 4 / 3; margin-top: var(--space-4); background: var(--ink-950); border-radius: var(--radius-lg); }
.reader-frame video { width: 100%; height: 100%; object-fit: cover; }
.reader-corners { position: absolute; inset: 12%; border: 3px solid var(--ciff-gold-300); border-radius: var(--radius-md); pointer-events: none; }
.usb-capture { margin-top: var(--space-6); padding: var(--space-8) var(--space-6); border: 2px dashed var(--paper-300); border-radius: var(--radius-lg); text-align: center; }
.usb-capture input { max-width: 28rem; margin: var(--space-4) auto 0; text-align: center; }
.scan-result { padding: var(--space-6); }
.scan-result[data-tone="success"] { border-color: var(--success-800); background: var(--success-100); }
.scan-result[data-tone="error"] { border-color: var(--danger-800); background: var(--danger-100); }
.result-title { display: flex; align-items: center; gap: var(--space-3); margin-bottom: var(--space-4); }
.result-icon { display: grid; place-items: center; width: 2.75rem; height: 2.75rem; border-radius: 50%; background: var(--ink-600); color: var(--paper-50); font-weight: 900; }
.scan-result[data-tone="success"] .result-icon { background: var(--success-800); }
.scan-result[data-tone="error"] .result-icon { background: var(--danger-800); }
.result-details { display: grid; grid-template-columns: auto 1fr; gap: var(--space-2) var(--space-6); margin: 0; }
.result-details dt { color: var(--ink-600); }
.result-details dd { margin: 0; font-weight: 750; }
.scan-again { margin-top: var(--space-4); min-height: 3.5rem; font-size: 1.05rem; }
.camera-controls { display: flex; align-items: flex-end; gap: var(--space-3); margin-top: var(--space-4); }
.camera-controls .field { flex: 1; }
.scan-guidance { margin: var(--space-4) 0 0; color: var(--ink-600); font-size: .9rem; }
.summary-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-4); margin-bottom: var(--space-6); }
.summary-card { padding: var(--space-4); background: var(--paper-50); border: 1px solid var(--paper-300); border-radius: var(--radius-md); }
.summary-card span { display: block; color: var(--ink-600); font-size: .82rem; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; }
.summary-card strong { display: block; margin-top: var(--space-1); font-size: 1.5rem; font-variant-numeric: tabular-nums; }

.auth-page { display: grid; min-height: 100vh; grid-template-columns: minmax(18rem, .9fr) minmax(22rem, 1.1fr); background: var(--paper-100); }
.auth-brand { display: flex; flex-direction: column; justify-content: space-between; padding: clamp(2rem, 6vw, 5rem); background: var(--ciff-wine-950); color: var(--paper-50); }
.auth-brand .brand { width: fit-content; }
.auth-statement { max-width: 16ch; margin: var(--space-12) 0; font-family: Georgia, "Times New Roman", serif; font-size: clamp(2.25rem, 5vw, 4.5rem); line-height: 1.02; text-wrap: balance; }
.auth-tagline { color: var(--ciff-gold-300); font-size: .8rem; letter-spacing: .14em; text-transform: uppercase; }
.auth-workspace { display: grid; place-items: center; padding: var(--space-6); }
.auth-card { width: min(100%, 29rem); }
.auth-card h1 { font-size: 2.5rem; }
.auth-card form { margin-top: var(--space-8); }
.auth-links { display: flex; flex-wrap: wrap; gap: var(--space-3); justify-content: space-between; margin-top: var(--space-4); font-size: .9rem; }

.mobile-nav { display: none; }

@media (max-width: 70rem) {
    :root { --sidebar-width: 13rem; }
    .scanner-layout { grid-template-columns: 1fr; }
    .operation-link { grid-template-columns: minmax(8rem, 12rem) minmax(0, 1fr) auto; }
}

@media (max-width: 52rem) {
    body { padding-bottom: calc(4.5rem + env(safe-area-inset-bottom)); }
    .app-shell { display: block; }
    .sidebar { display: none; }
    .topbar { min-height: 4rem; justify-content: space-between; }
    .topbar::before { content: "CIFF Voucher System"; font-family: Georgia, "Times New Roman", serif; font-weight: 700; }
    .page-header { display: grid; }
    .header-actions { justify-content: flex-start; }
    .form-grid { grid-template-columns: 1fr; }
    .form-grid .full { grid-column: auto; }
    .mobile-nav {
        position: fixed;
        z-index: 200;
        left: 0;
        right: 0;
        bottom: 0;
        display: flex;
        align-items: stretch;
        gap: var(--space-1);
        overflow-x: hidden;
        padding: var(--space-2) max(var(--space-2), env(safe-area-inset-right)) max(var(--space-2), env(safe-area-inset-bottom)) max(var(--space-2), env(safe-area-inset-left));
        background: var(--paper-50);
        border-top: 1px solid var(--paper-300);
        box-shadow: 0 -8px 24px oklch(20% 0.03 18 / .08);
    }
    .mobile-nav a {
        flex: 1 1 0;
        min-width: 0;
        min-height: 3rem;
        display: grid;
        place-items: center;
        padding: var(--space-2);
        border-radius: var(--radius-sm);
        color: var(--ink-600);
        font-size: .68rem;
        font-weight: 750;
        text-align: center;
        text-decoration: none;
    }
    .mobile-nav a[aria-current="page"] { background: var(--ciff-wine-100); color: var(--ciff-wine-800); }
    .operation-link { grid-template-columns: 1fr auto; gap: var(--space-2); }
    .operation-copy { grid-column: 1 / -1; }
    .toolbar { align-items: stretch; flex-direction: column; }
    .toolbar .btn { width: 100%; }
    .pagination-row { align-items: flex-start; flex-direction: column; }
    .auth-page { grid-template-columns: 1fr; }
    .auth-brand { min-height: 14rem; padding: var(--space-6); }
    .auth-statement { max-width: 20ch; margin: var(--space-6) 0; font-size: 2rem; }
    .auth-workspace { align-items: start; }
}

@media (max-width: 40rem) {
    .page-content { padding: var(--space-4); }
    h1 { font-size: 2rem; }
    .header-actions { display: grid; grid-template-columns: 1fr; }
    .header-actions .btn { width: 100%; }
    .panel-body, .scanner-stage, .scan-result { padding: var(--space-4); }
    .camera-controls { align-items: stretch; flex-direction: column; }
    .camera-controls .btn { width: 100%; }
    .result-details { grid-template-columns: 1fr; gap: var(--space-1); }
    .result-details dd { margin-bottom: var(--space-2); }
    .arabic-instructions ol { grid-template-columns: 1fr; gap: var(--space-2); }
    .summary-grid { grid-template-columns: 1fr; }
    .responsive-table { border: 0; background: transparent; box-shadow: none; overflow: visible; }
    .responsive-table table, .responsive-table tbody { display: block; }
    .responsive-table thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; }
    .responsive-table tr { display: block; margin-bottom: var(--space-3); padding: var(--space-3); border: 1px solid var(--paper-300); border-radius: var(--radius-md); background: var(--paper-50); box-shadow: var(--shadow-sm); }
    .responsive-table td { display: grid; grid-template-columns: minmax(7rem, .8fr) minmax(0, 1.2fr); gap: var(--space-3); padding: var(--space-2) 0; border-bottom: 1px solid var(--paper-200); text-align: left; }
    .responsive-table td:last-child { border-bottom: 0; }
    .responsive-table td::before { content: attr(data-label); color: var(--ink-600); font-size: .78rem; font-weight: 800; letter-spacing: .04em; text-transform: uppercase; }
    .cell-actions { flex-wrap: wrap; }
}

@media (pointer: coarse) {
    .btn, .primary-nav a, input:not([type="checkbox"]):not([type="radio"]), select { min-height: 3rem; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}