/* ============================================================================
   A Plus Academy design-system styles.
   Tokens live in Theme/LearnsphereTheme.cs; this file styles the shared
   components and applies global polish (focus rings, scrollbars, motion).
   ============================================================================ */

:root {
    --ls-radius: 14px;
    --ls-radius-sm: 10px;
    --ls-radius-lg: 20px;
    --ls-shadow-sm: 0 1px 2px rgba(14,42,82,0.04), 0 1px 3px rgba(14,42,82,0.06);
    --ls-shadow-md: 0 4px 12px rgba(14,42,82,0.06), 0 2px 4px rgba(14,42,82,0.04);
    --ls-shadow-lg: 0 12px 32px rgba(14,42,82,0.10), 0 4px 8px rgba(14,42,82,0.05);
    --ls-border: 1px solid rgba(14,42,82,0.14);
    --ls-space-xs: 4px;
    --ls-space-sm: 8px;
    --ls-space-md: 16px;
    --ls-space-lg: 24px;
    --ls-space-xl: 32px;
}

html,
body {
    font-family: 'Hanken Grotesk', system-ui, sans-serif;
}

/* Visible, consistent keyboard focus across the app (WCAG 2.2). */
a:focus-visible,
button:focus-visible,
.mud-button-root:focus-visible,
.mud-nav-link:focus-visible,
[tabindex]:focus-visible {
    outline: 3px solid var(--mud-palette-primary);
    outline-offset: 2px;
    border-radius: var(--ls-radius-sm);
}

/* Honour reduced-motion preferences. */
@media (prefers-reduced-motion: reduce) {

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

/* Slim, themed scrollbars. */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--mud-palette-lines-inputs) transparent;
}

*::-webkit-scrollbar {
    width: 9px;
    height: 9px;
}

*::-webkit-scrollbar-thumb {
    background: var(--mud-palette-lines-inputs);
    border-radius: 99px;
}

*::-webkit-scrollbar-thumb:hover {
    background: var(--mud-palette-gray-default);
}

/* ---- Cards ---- */
.ls-section-card,
.ls-stat-card {
    border-radius: var(--ls-radius);
    border: var(--ls-border);
    background: var(--mud-palette-surface);
    box-shadow: var(--ls-shadow-sm);
    transition: box-shadow 160ms ease, transform 160ms ease;
}

.ls-section-card__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--ls-space-md);
    padding: var(--ls-space-md) var(--ls-space-lg);
    border-bottom: var(--ls-border);
}

.ls-section-card__body {
    padding: var(--ls-space-lg);
}

/* ---- Stat / KPI card ---- */
.ls-stat-card:hover,
.ls-stat-card:focus-within {
    box-shadow: var(--ls-shadow-md);
    transform: translateY(-2px);
}

.ls-stat-card__value {
    font-family: 'Fraunces', Georgia, serif;
    line-height: 1.1;
}

.ls-stat-card__icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
}

/* ---- Page header ---- */
.ls-page-header {
    margin-bottom: var(--ls-space-lg);
}

.ls-breadcrumbs .mud-breadcrumb-item,
.ls-breadcrumbs a {
    font-size: 0.8125rem;
}

/* ---- Empty state ---- */
.ls-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--ls-space-xl) var(--ls-space-lg);
}

.ls-empty-state__icon {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--mud-palette-primary-hover);
    color: var(--mud-palette-primary);
}

.ls-empty-state__desc {
    max-width: 420px;
}

/* ---- Status / role chips ---- */
.ls-status-chip,
.ls-role-badge {
    font-weight: 600;
    letter-spacing: 0.01em;
}

/* ---- App shell ---- */
.ls-appbar {
    border-bottom: var(--ls-border);
    backdrop-filter: saturate(1.1) blur(6px);
}

.ls-drawer {
    border-right: var(--ls-border);
}

.ls-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: 'Fraunces', Georgia, serif;
    font-weight: 600;
    font-size: 1.15rem;
    letter-spacing: -0.01em;
    color: var(--mud-palette-text-primary);
    text-decoration: none;
}

.ls-brand__mark {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #1B4DA0;
    color: #F6F0E4;
    flex: 0 0 auto;
}

.ls-brand__sub {
    font-family: 'Hanken Grotesk', system-ui, sans-serif;
    font-weight: 700;
    font-size: 0.55rem;
    letter-spacing: 0.34em;
    text-transform: uppercase;
    color: var(--mud-palette-text-secondary);
    margin-top: 2px;
}

.ls-nav-section-label {
    padding: 16px 20px 6px;
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--mud-palette-text-secondary);
}

.ls-content {
    padding: var(--ls-space-lg);
    max-width: 1440px;
    margin: 0 auto;
    width: 100%;
}

@media (max-width: 600px) {
    .ls-content {
        padding: var(--ls-space-md);
    }

    .ls-section-card__body {
        padding: var(--ls-space-md);
    }

    .ls-section-card__header {
        padding: var(--ls-space-sm) var(--ls-space-md);
    }
}

/* ---- Auth pages ---- */
.ls-auth-wrap {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1.05fr 1fr;
}

.ls-auth-aside {
    position: relative;
    overflow: hidden;
    background: #1B4DA0;
    color: #F6F0E4;
    padding: 56px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.ls-auth-aside__blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(8px);
    opacity: 0.35;
}

.ls-auth-main {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 32px;
    background: var(--mud-palette-background);
}

.ls-auth-card {
    width: 100%;
    max-width: 420px;
}

@media (max-width: 900px) {
    .ls-auth-wrap {
        grid-template-columns: 1fr;
    }

    .ls-auth-aside {
        display: none;
    }
}

/* ---- Misc helpers ---- */
.ls-gradient-text {
    background: linear-gradient(120deg, #1B4DA0, #DDA53B);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.gap-1 {
    gap: 4px;
}

.gap-2 {
    gap: 8px;
}

.gap-3 {
    gap: 12px;
}

.gap-4 {
    gap: 16px;
}

.ls-clickable {
    cursor: pointer;
}

.ls-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ---- Role selection tiles (Register) ---- */
.ls-role-tile {
    border: 2px solid var(--mud-palette-lines-default);
    border-radius: 12px;
    transition: border-color 140ms ease, background 140ms ease;
}

.ls-role-tile:hover {
    border-color: var(--mud-palette-primary);
}

.ls-role-tile--active {
    border-color: var(--mud-palette-primary);
    background: var(--mud-palette-primary-hover);
}

/* ---- Lesson / list rows ---- */
.ls-row {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 14px 0;
    border-bottom: 1px solid var(--mud-palette-divider-light);
}

.ls-row:last-child {
    border-bottom: none;
}

.ls-row__leading {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    background: var(--mud-palette-primary-hover);
    color: var(--mud-palette-primary);
}

/* ---- Next-lesson hero ---- */
.ls-hero {
    border-radius: var(--ls-radius-lg);
    padding: 28px;
    color: #F6F0E4;
    background: #1B4DA0;
    position: relative;
    overflow: hidden;
}

.ls-hero__glow {
    position: absolute;
    width: 260px;
    height: 260px;
    border-radius: 50%;
    background: rgba(221,165,59,0.18);
    top: -120px;
    right: -40px;
}

/* ---- Print / PDF report view ---- */
@media print {

    .ls-no-print,
    .mud-appbar,
    .mud-drawer,
    .mud-overlay {
        display: none !important;
    }

    .ls-content,
    main,
    .mud-main-content {
        padding: 0 !important;
        margin: 0 !important;
    }

    .ls-section-card {
        box-shadow: none !important;
        border: 1px solid #ddd !important;
    }

    body {
        background: #fff !important;
    }
}

.ls-report-print {
    max-width: 820px;
    margin: 0 auto;
}

.ls-pinned {
    border-left: 4px solid var(--mud-palette-secondary);
}

.ls-row--active {
    background: var(--mud-palette-primary-hover);
    border-radius: 10px;
    padding-left: 8px;
    padding-right: 8px;
}

/* ---- Public landing page ---- */
.ls-public__bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 18px 24px;
}

.ls-landing-hero {
    max-width: 1200px;
    margin: 0 auto;
    padding: 32px 24px 16px;
}

.ls-landing-hero__inner {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 48px;
    align-items: center;
}

.ls-landing-title {
    font-weight: 700;
    line-height: 1.1;
}

.ls-landing-stats {
    display: flex;
    gap: 40px;
    margin-top: 40px;
}

.ls-landing-hero__art {
    display: flex;
    justify-content: center;
}

.ls-landing-card {
    width: 100%;
    max-width: 420px;
    padding: 24px;
    border-radius: var(--ls-radius-lg);
    box-shadow: var(--ls-shadow-lg);
    background: var(--mud-palette-surface);
}

.ls-landing-features {
    max-width: 1200px;
    margin: 0 auto;
    padding: 48px 24px;
}

.ls-landing-demo {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px 48px;
}

.ls-landing-footer {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px;
    text-align: center;
}

@media (max-width: 900px) {
    .ls-landing-hero__inner {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .ls-landing-hero__art {
        order: -1;
    }

    .ls-landing-stats {
        gap: 28px;
    }
}

/* ---- Portal / role-selector page (MyTutor-style) ---- */
.ls-portal {
    max-width: 580px;
    margin: 0 auto;
    padding: 60px 24px 48px;
}

.ls-portal__header {
    text-align: center;
    margin-bottom: 40px;
}

.ls-portal__logo-mark {
    margin-bottom: 24px;
}

.ls-portal__cards {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.ls-portal__card {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 24px 28px;
    background: #fff;
    border: 1px solid rgba(14,42,82,0.14);
    border-radius: 18px;
    cursor: pointer;
    transition: transform 0.25s cubic-bezier(0.2,0.8,0.2,1), box-shadow 0.25s, border-color 0.25s;
}

.ls-portal__card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 40px -20px rgba(14,42,82,0.25);
    border-color: #1B4DA0;
}

.ls-portal__card:focus-visible {
    outline: 3px solid #1B4DA0;
    outline-offset: 2px;
}

.ls-portal__card-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.ls-portal__card-body {
    flex: 1;
}

.ls-portal__footer {
    margin-top: 40px;
    text-align: center;
}

@media (max-width: 600px) {
    .ls-portal {
        padding: 40px 16px 32px;
    }
    .ls-portal__card {
        padding: 20px;
        gap: 14px;
    }
    .ls-portal__card-icon {
        width: 52px;
        height: 52px;
        border-radius: 12px;
    }
}