/* KyInfo UI utilities — maps skill tokens to Bootstrap / custom CSS */

:root {
    --ky-primary-ui: #3b82f6;
    --ky-primary-ui-dark: #2563eb;
    --ky-ring: rgba(59, 130, 246, 0.45);
    --ky-placeholder: #64748b;
    --ky-line-height: 1.55;
    --ky-btn-h: 2.5rem;
    --ky-btn-h-sm: 2.25rem;
    --ky-input-border: rgba(148, 163, 184, 0.45);
    --ky-background: #fff;
    --ky-ink: #0f172a;
    --ky-ink-soft: #334155;
    --ky-muted: #64748b;
}

body {
    line-height: var(--ky-line-height);
}

/* Skip link (a11y) */
.skip-link {
    position: absolute;
    left: -9999px;
    top: 0.75rem;
    z-index: 1100;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    background: var(--ky-primary-ui);
    color: #fff;
    font-weight: 600;
    text-decoration: none;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.35);
}

.skip-link:focus {
    left: 0.75rem;
    outline: none;
}

/* Focus rings (a11y) */
.btn:focus-visible,
.form-control:focus-visible,
.form-select:focus-visible,
.nav-link:focus-visible,
.ai-chat-chip:focus-visible,
.discussion-toolbar-btn:focus-visible,
.ky-btn:focus-visible,
.ky-btn-tab:focus-visible,
.discussion-publish-btn:focus-visible,
.discussion-filter-tab:focus-visible,
.admin-tab:focus-visible {
    outline: none;
    box-shadow: 0 0 0 2px #fff, 0 0 0 4px var(--ky-ring);
}

.form-control::placeholder {
    color: var(--ky-placeholder);
    opacity: 1;
}

/* ===== Button tier system (kyinfo-button-guidelines) ===== */

.ky-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    flex-shrink: 0;
    white-space: nowrap;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s, color 0.15s, box-shadow 0.15s;
}

.ky-btn:disabled {
    opacity: 0.65;
    cursor: not-allowed;
}

/* Primary — h-10 px-4 */
.ky-btn-primary {
    min-height: var(--ky-btn-h);
    height: var(--ky-btn-h);
    padding: 0 1rem;
    border: 1px solid var(--ky-primary-ui-dark);
    background: var(--ky-primary-ui);
    color: #fff;
    font-weight: 600;
}

.ky-btn-primary:hover:not(:disabled) {
    background: #2563eb;
    border-color: #1d4ed8;
}

.ky-btn-primary:active:not(:disabled) {
    background: #1d4ed8;
}

/* Outline / Secondary — h-10 px-4 */
.ky-btn-outline {
    min-height: var(--ky-btn-h);
    height: var(--ky-btn-h);
    padding: 0 1rem;
    border: 1px solid var(--ky-input-border);
    background: var(--ky-background);
    color: var(--ky-ink-soft);
}

.ky-btn-outline:hover:not(:disabled) {
    background: rgba(148, 163, 184, 0.08);
    border-color: #cbd5e1;
    color: var(--ky-ink);
}

/* Ghost icon — h-9 w-9 */
.ky-btn-ghost-icon {
    width: var(--ky-btn-h-sm);
    height: var(--ky-btn-h-sm);
    min-width: var(--ky-btn-h-sm);
    min-height: var(--ky-btn-h-sm);
    padding: 0;
    border: none;
    border-radius: 0.375rem;
    background: transparent;
    color: var(--ky-muted);
}

.ky-btn-ghost-icon:hover:not(:disabled) {
    background: rgba(148, 163, 184, 0.12);
    color: var(--ky-ink);
}

.ky-btn-ghost-icon .bi {
    font-size: 1rem;
    line-height: 1;
}

.ky-btn-ghost-icon.is-spinning .bi {
    animation: ky-btn-spin 0.75s linear infinite;
}

@keyframes ky-btn-spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Tabs — h-9 */
.ky-btn-tab {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    min-height: var(--ky-btn-h-sm);
    padding: 0 0.75rem;
    border: none;
    border-radius: 0.375rem;
    background: transparent;
    color: var(--ky-muted);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
    white-space: nowrap;
}

.ky-btn-tab.is-active {
    background: rgba(148, 163, 184, 0.18);
    color: var(--ky-ink);
    font-weight: 600;
}

.ky-btn-tab:hover:not(.is-active):not(:disabled) {
    background: rgba(148, 163, 184, 0.1);
    color: var(--ky-ink-soft);
}

/* Bootstrap combo — Primary / Outline h-10 */
.btn-ky,
.btn.btn-ky {
    min-height: var(--ky-btn-h);
    height: var(--ky-btn-h);
    padding: 0.375rem 1rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    flex-shrink: 0;
    white-space: nowrap;
}

.btn-primary {
    background: var(--ky-primary-ui);
    border-color: var(--ky-primary-ui-dark);
}

.btn-primary:hover {
    background: #2563eb;
    border-color: #1d4ed8;
}

.btn-outline-secondary {
    --bs-btn-color: var(--ky-ink-soft);
    --bs-btn-border-color: var(--ky-input-border);
    --bs-btn-hover-bg: rgba(148, 163, 184, 0.08);
    --bs-btn-hover-border-color: #cbd5e1;
    --bs-btn-hover-color: var(--ky-ink);
}

.btn-outline-primary {
    --bs-btn-color: var(--ky-primary-ui-dark);
    --bs-btn-border-color: rgba(59, 130, 246, 0.55);
    --bs-btn-hover-bg: rgba(59, 130, 246, 0.08);
    --bs-btn-hover-border-color: var(--ky-primary-ui);
}

/* Filter forms — flex, stack on sm */
.ky-filter-form {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 1rem;
}

@media (min-width: 576px) {
    .ky-filter-form {
        flex-direction: row;
        flex-wrap: wrap;
        align-items: flex-end;
    }

    .ky-filter-field {
        flex: 1 1 10rem;
        min-width: 0;
    }

    .ky-filter-actions {
        flex: 0 0 auto;
    }
}

.ky-filter-grid-4 {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    align-items: end;
}

@media (min-width: 576px) {
    .ky-filter-grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .ky-filter-grid-4 {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Empty state */
.ky-empty-state {
    text-align: center;
    padding: 2.5rem 1.5rem;
    color: var(--ky-muted);
}

.ky-empty-state-icon {
    font-size: 2.5rem;
    color: rgba(59, 130, 246, 0.35);
    margin-bottom: 0.75rem;
    display: block;
}

.ky-empty-state-title {
    font-weight: 600;
    color: var(--ky-ink-soft);
    margin: 0 0 0.35rem;
}

.ky-empty-state-hint {
    font-size: 0.9rem;
    margin: 0;
    max-width: 22rem;
    margin-left: auto;
    margin-right: auto;
}

/* Score line type badges */
.pill-national {
    border-color: rgba(59, 130, 246, 0.35);
    color: #1d4ed8;
    background: rgba(59, 130, 246, 0.12);
}

.pill-school-line {
    border-color: rgba(34, 197, 94, 0.35);
    color: #15803d;
    background: rgba(34, 197, 94, 0.12);
}

/* School level tag filled */
.pill-level-985 {
    border: none;
    color: #1d4ed8;
    background: #dbeafe;
    font-weight: 600;
}

/* Table hover */
.table-ky tbody tr {
    transition: background 0.12s ease;
}

.table-ky tbody tr:hover {
    background: rgba(148, 163, 184, 0.12);
}

/* Mobile card list (replaces table on sm) */
.ky-mobile-cards {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    padding: 0.75rem;
}

@media (min-width: 576px) {
    .ky-mobile-cards {
        display: none;
    }
}

.ky-mobile-card {
    border: 1px solid var(--ky-border-strong);
    border-radius: 0.65rem;
    padding: 0.85rem 1rem;
    background: #fff;
}

.ky-table-desktop {
    display: none;
}

@media (min-width: 576px) {
    .ky-table-desktop {
        display: table;
    }
}

/* Schools split */
.schools-split-list {
    flex: 1 1 100%;
    min-width: 0;
}

@media (min-width: 768px) {
    .schools-split-list {
        flex: 1 1 50%;
        min-width: 400px;
        max-width: 50%;
    }

    .schools-split-detail {
        flex: 1 1 50%;
    }
}

.schools-split-row {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

@media (min-width: 768px) {
    .schools-split-row {
        flex-direction: row;
        align-items: stretch;
    }
}

/* Admin tabs & dropzone */
.admin-panel-tabs {
    display: flex;
    gap: 0.25rem;
    padding: 0.35rem;
    margin-bottom: 1rem;
    background: rgba(148, 163, 184, 0.12);
    border-radius: 0.65rem;
}

.admin-tab {
    flex: 1;
    border: none;
    background: transparent;
    min-height: var(--ky-btn-h-sm);
    padding: 0 0.75rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--ky-muted);
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
}

.admin-tab.is-active {
    background: #fff;
    color: var(--ky-primary-ui-dark);
    box-shadow: var(--ky-shadow-sm);
}

.ky-dropzone {
    border: 2px dashed rgba(59, 130, 246, 0.35);
    border-radius: var(--ky-radius);
    padding: 1.75rem 1rem;
    text-align: center;
    background: rgba(59, 130, 246, 0.04);
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s;
}

.ky-dropzone:hover,
.ky-dropzone:focus-within {
    border-color: var(--ky-primary-ui);
    background: rgba(59, 130, 246, 0.08);
}

.ky-dropzone-icon {
    font-size: 1.75rem;
    color: var(--ky-primary-ui);
    margin-bottom: 0.5rem;
}

.ky-dropzone-label {
    font-size: 0.9rem;
    color: var(--ky-ink-soft);
    margin: 0;
}

.ky-dropzone-hint {
    font-size: 0.78rem;
    color: var(--ky-muted);
    margin: 0.35rem 0 0;
}

/* Card header with left actions */
.card-header-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem;
}

.card-header-actions .card-header-title {
    flex: 1;
    min-width: 0;
}

/* Password visibility */
.ky-password-field {
    position: relative;
}

.ky-password-field .form-control {
    padding-right: 2.75rem;
}

.ky-password-toggle {
    position: absolute;
    right: 0.35rem;
    top: 50%;
    transform: translateY(-50%);
    border: none;
    background: transparent;
    color: var(--ky-muted);
    padding: 0.25rem 0.5rem;
    border-radius: 0.35rem;
    cursor: pointer;
    line-height: 1;
}

.ky-password-toggle:hover {
    color: var(--ky-primary-ui-dark);
}

/* Account profile header */
.profile-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 0.75rem;
}

.profile-form-footer {
    display: flex;
    justify-content: flex-end;
    margin-top: 0.5rem;
}

/* Skeleton */
.ky-skeleton {
    background: linear-gradient(90deg, #f1f5f9 25%, #e2e8f0 50%, #f1f5f9 75%);
    background-size: 200% 100%;
    animation: ky-skeleton 1.2s ease-in-out infinite;
    border-radius: 0.5rem;
    min-height: 4rem;
}

@keyframes ky-skeleton {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Mobile drawer overlay */
.sidebar-drawer-backdrop {
    display: none;
}

@media (max-width: 640.98px) {
    .app-shell.sidebar-open .sidebar-drawer-backdrop {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(15, 23, 42, 0.45);
        z-index: 1040;
    }

    .app-shell .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        bottom: 0;
        width: min(280px, 88vw);
        z-index: 1050;
        transform: translateX(-100%);
        transition: transform 0.25s ease;
    }

    .app-shell.sidebar-open .sidebar {
        transform: translateX(0);
    }

    .app-menu-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 2.5rem;
        height: 2.5rem;
        border: 1px solid var(--ky-border);
        border-radius: 0.5rem;
        background: #fff;
        color: var(--ky-ink-soft);
        cursor: pointer;
        flex-shrink: 0;
    }
}

@media (min-width: 641px) {
    .app-menu-toggle {
        display: none;
    }
}

/* Button groups stack on mobile */
.ky-btn-group-responsive {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

@media (min-width: 576px) {
    .ky-btn-group-responsive {
        flex-direction: row;
        flex-wrap: wrap;
    }
}