/* ================================================
   LEARN PAGE - Editorial Documentation Design
   Clean, refined typography with subtle depth
   Global CSS file - included in App.razor
   ================================================ */

/* CSS Variables */
:root {
    --learn-primary: #6366f1;
    --learn-primary-dark: #4f46e5;
    --learn-primary-light: #818cf8;
    --learn-secondary: #64748b;
    --learn-text: #1e293b;
    --learn-text-muted: #64748b;
    --learn-bg: #ffffff;
    --learn-bg-alt: #f8fafc;
    --learn-border: #e2e8f0;
    --learn-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    --learn-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --learn-shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.1);
    --learn-radius: 12px;
    --learn-radius-sm: 8px;
    --learn-transition: 0.2s ease;
}

/* ================================================
   HERO SECTION
   ================================================ */
.learn-hero {
    background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
    padding: 5rem 0 4rem;
    position: relative;
    overflow: hidden;
}

.learn-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 30%, rgba(139, 92, 246, 0.03) 0%, transparent 50%);
    pointer-events: none;
}

.learn-hero-content {
    text-align: center;
    max-width: 720px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.learn-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(99, 102, 241, 0.08);
    color: var(--learn-primary);
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.025em;
    text-transform: uppercase;
    border-radius: 100px;
    margin-bottom: 1.5rem;
}

.learn-hero-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    line-height: 1.15;
    color: var(--learn-text);
    margin-bottom: 1.25rem;
    letter-spacing: -0.025em;
}

.learn-hero .text-gradient {
    background: linear-gradient(135deg, var(--learn-primary) 0%, #8b5cf6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.learn-hero-subtitle {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--learn-text-muted);
    margin-bottom: 2rem;
}

/* Search */
.learn-search-wrapper {
    max-width: 560px;
    margin: 0 auto 2rem;
}

.learn-search {
    display: flex;
    align-items: center;
    background: var(--learn-bg);
    border: 1px solid var(--learn-border);
    border-radius: var(--learn-radius);
    padding: 0.25rem;
    transition: all var(--learn-transition);
    box-shadow: var(--learn-shadow);
}

.learn-search:focus-within {
    border-color: var(--learn-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.learn-search-icon {
    padding: 0 1rem;
    color: var(--learn-text-muted);
    font-size: 1.25rem;
}

.learn-search-input {
    flex: 1;
    border: none;
    background: transparent;
    padding: 0.875rem 0;
    font-size: 1rem;
    color: var(--learn-text);
    outline: none;
}

.learn-search-input::placeholder {
    color: #94a3b8;
}

.learn-search-clear {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border: none;
    background: var(--learn-bg-alt);
    color: var(--learn-text-muted);
    border-radius: var(--learn-radius-sm);
    cursor: pointer;
    transition: all var(--learn-transition);
}

.learn-search-clear:hover {
    background: var(--learn-border);
    color: var(--learn-text);
}

/* Hero Links */
.learn-hero-links {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.learn-hero-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--learn-text-muted);
    background: var(--learn-bg);
    border: 1px solid var(--learn-border);
    border-radius: var(--learn-radius-sm);
    text-decoration: none;
    transition: all var(--learn-transition);
}

.learn-hero-link:hover {
    color: var(--learn-primary);
    border-color: var(--learn-primary);
    transform: translateY(-1px);
}

.learn-hero-link-primary {
    background: var(--learn-primary);
    color: #fff;
    border-color: var(--learn-primary);
}

.learn-hero-link-primary:hover {
    background: var(--learn-primary-dark);
    border-color: var(--learn-primary-dark);
    color: #fff;
}

/* ================================================
   SECTIONS
   ================================================ */
.learn-section {
    padding: 4rem 0;
}

.learn-section-alt {
    background: var(--learn-bg-alt);
}

.learn-section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.learn-section-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--learn-text);
}

.learn-results-badge {
    display: inline-flex;
    padding: 0.375rem 0.875rem;
    background: var(--learn-primary);
    color: #fff;
    font-size: 0.8125rem;
    font-weight: 600;
    border-radius: 100px;
}

.learn-results-note {
    text-align: center;
    color: var(--learn-text-muted);
    margin-top: 2rem;
    font-size: 0.9375rem;
}

.learn-section-footer {
    text-align: center;
    margin-top: 3rem;
}

/* ================================================
   GRID SYSTEM
   ================================================ */
.learn-grid {
    display: grid;
    gap: 1.25rem;
}

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

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

@media (min-width: 1024px) {
    .learn-grid-3 {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ================================================
   MODULE TABS
   ================================================ */
.learn-module-tabs {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.375rem;
    background: var(--learn-bg);
    border-radius: var(--learn-radius);
    box-shadow: var(--learn-shadow);
    width: fit-content;
    margin: 0 auto 3rem;
}

.learn-module-tab {
    display: inline-flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--learn-text-muted);
    background: transparent;
    border: none;
    border-radius: calc(var(--learn-radius) - 4px);
    cursor: pointer;
    transition: all var(--learn-transition);
}

.learn-module-tab:hover {
    color: var(--learn-text);
    background: var(--learn-bg-alt);
}

.learn-module-tab.active {
    color: #fff;
    background: linear-gradient(135deg, var(--learn-primary) 0%, #7c3aed 100%);
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

.learn-module-tab i {
    font-size: 1.125rem;
}

/* ================================================
   DOCS HEADER
   ================================================ */
.learn-docs-header {
    text-align: center;
    margin-bottom: 3rem;
}

.learn-docs-pretitle {
    display: inline-block;
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--learn-primary);
    margin-bottom: 0.75rem;
}

.learn-docs-title {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    color: var(--learn-text);
    margin-bottom: 0.75rem;
    letter-spacing: -0.02em;
}

.learn-docs-subtitle {
    font-size: 1.0625rem;
    color: var(--learn-text-muted);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* ================================================
   LOADING STATE
   ================================================ */
.learn-loading {
    display: flex;
    justify-content: center;
    padding: 4rem 0;
}

.learn-loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--learn-border);
    border-top-color: var(--learn-primary);
    border-radius: 50%;
    animation: learnSpin 0.8s linear infinite;
}

@keyframes learnSpin {
    to { transform: rotate(360deg); }
}

/* ================================================
   GLOBAL LINK STYLES - Remove underlines
   ================================================ */
.learn-popular-card,
.learn-popular-card:hover,
.learn-category-list a,
.learn-category-list a:hover,
.learn-search-card,
.learn-search-card:hover,
.learn-category-more,
.learn-category-more:hover {
    text-decoration: none !important;
}

/* ================================================
   POPULAR GUIDES
   ================================================ */
.learn-popular {
    margin-bottom: 3rem;
}

.learn-popular-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--learn-text);
    margin-bottom: 1.25rem;
}

.learn-popular-title i {
    color: #f59e0b;
}

.learn-popular-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.25rem;
    background: var(--learn-bg);
    border: 1px solid var(--learn-border);
    border-radius: var(--learn-radius);
    text-decoration: none;
    transition: all var(--learn-transition);
}

.learn-popular-card:hover {
    border-color: var(--learn-primary);
    box-shadow: var(--learn-shadow-md);
    transform: translateY(-2px);
    text-decoration: none;
}

.learn-popular-card h4,
.learn-popular-card span {
    text-decoration: none;
}

.learn-popular-card:hover h4,
.learn-popular-card:hover span {
    text-decoration: none;
}

.learn-popular-card-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    color: var(--learn-primary);
    border-radius: var(--learn-radius-sm);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.learn-popular-card-content {
    flex: 1;
    min-width: 0;
}

.learn-popular-card-content h4 {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--learn-text);
    margin: 0 0 0.25rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.learn-popular-card-content span {
    font-size: 0.8125rem;
    color: var(--learn-text-muted);
}

.learn-popular-card-arrow {
    color: var(--learn-text-muted);
    transition: all var(--learn-transition);
}

.learn-popular-card:hover .learn-popular-card-arrow {
    color: var(--learn-primary);
    transform: translateX(3px);
}

/* ================================================
   CATEGORY CARDS
   ================================================ */
.learn-categories {
    margin-top: 2rem;
}

.learn-category-card {
    background: var(--learn-bg);
    border: 1px solid var(--learn-border);
    border-radius: var(--learn-radius);
    overflow: hidden;
    transition: all var(--learn-transition);
}

.learn-category-card:hover {
    box-shadow: var(--learn-shadow-md);
}

.learn-category-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem 1.25rem 1rem;
    border-bottom: 1px solid var(--learn-border);
}

.learn-category-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.08) 100%);
    color: var(--learn-primary);
    border-radius: var(--learn-radius-sm);
    font-size: 1.375rem;
    flex-shrink: 0;
}

.learn-category-info h3 {
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--learn-text);
    margin: 0 0 0.25rem;
}

.learn-category-info span {
    font-size: 0.8125rem;
    color: var(--learn-text-muted);
}

.learn-category-list {
    list-style: none;
    margin: 0;
    padding: 0.75rem 1.25rem;
}

.learn-category-list li {
    margin: 0;
    padding: 0;
}

.learn-category-list a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.625rem 0;
    color: var(--learn-text);
    text-decoration: none;
    font-size: 0.9375rem;
    transition: all var(--learn-transition);
    border-bottom: 1px solid transparent;
}

.learn-category-list li:not(:last-child) a {
    border-bottom-color: var(--learn-border);
}

.learn-category-list a i {
    color: var(--learn-primary);
    font-size: 1rem;
    opacity: 0.7;
    transition: all var(--learn-transition);
}

.learn-category-list a span {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.learn-category-list a:hover {
    color: var(--learn-primary);
}

.learn-category-list a:hover i {
    opacity: 1;
}

.learn-category-more {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0.5rem 1.25rem 1.25rem;
    padding: 0.5rem 1rem;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--learn-primary);
    background: rgba(99, 102, 241, 0.08);
    border-radius: var(--learn-radius-sm);
    text-decoration: none;
    transition: all var(--learn-transition);
}

.learn-category-more:hover {
    background: rgba(99, 102, 241, 0.15);
}

/* ================================================
   SEARCH CARDS
   ================================================ */
.learn-search-card {
    display: block;
    padding: 1.5rem;
    background: var(--learn-bg);
    border: 1px solid var(--learn-border);
    border-radius: var(--learn-radius);
    text-decoration: none;
    position: relative;
    transition: all var(--learn-transition);
}

.learn-search-card:hover {
    border-color: var(--learn-primary);
    box-shadow: var(--learn-shadow-md);
    transform: translateY(-3px);
}

.learn-search-card-badges {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.875rem;
}

.learn-search-card-title {
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--learn-text);
    margin: 0 0 0.5rem;
    line-height: 1.4;
}

.learn-search-card-desc {
    font-size: 0.875rem;
    color: var(--learn-text-muted);
    margin: 0;
    line-height: 1.6;
}

.learn-search-card-arrow {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    color: var(--learn-text-muted);
    transition: all var(--learn-transition);
}

.learn-search-card:hover .learn-search-card-arrow {
    color: var(--learn-primary);
    transform: translateX(3px);
}

/* ================================================
   VIDEO CARDS
   ================================================ */
.learn-video-card {
    background: var(--learn-bg);
    border: 1px solid var(--learn-border);
    border-radius: var(--learn-radius);
    overflow: hidden;
    cursor: pointer;
    transition: all var(--learn-transition);
}

.learn-video-card:hover {
    box-shadow: var(--learn-shadow-md);
    transform: translateY(-3px);
}

.learn-video-thumb {
    position: relative;
    height: 180px;
    background: linear-gradient(135deg, #e0e7ff 0%, #f0e6ff 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.learn-video-play {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: var(--learn-primary);
    color: #fff;
    border-radius: 50%;
    font-size: 1.5rem;
    transition: all var(--learn-transition);
    box-shadow: 0 4px 16px rgba(99, 102, 241, 0.4);
}

.learn-video-card:hover .learn-video-play {
    transform: scale(1.1);
}

.learn-video-duration {
    position: absolute;
    bottom: 0.75rem;
    right: 0.75rem;
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.25rem 0.625rem;
    background: rgba(0, 0, 0, 0.7);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: 4px;
}

.learn-video-body {
    padding: 1.25rem;
}

.learn-video-body h4 {
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--learn-text);
    margin: 0.75rem 0 0.5rem;
}

.learn-video-body p {
    font-size: 0.875rem;
    color: var(--learn-text-muted);
    margin: 0;
    line-height: 1.6;
}

/* ================================================
   BADGES
   ================================================ */
.learn-badge {
    display: inline-block;
    padding: 0.25rem 0.625rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 4px;
}

.learn-badge-primary {
    background: rgba(99, 102, 241, 0.1);
    color: var(--learn-primary);
}

.learn-badge-muted {
    background: rgba(100, 116, 139, 0.1);
    color: var(--learn-secondary);
}

.learn-badge-info {
    background: rgba(59, 130, 246, 0.1);
    color: #3b82f6;
}

.learn-badge-success {
    background: rgba(16, 185, 129, 0.1);
    color: #10b981;
}

.learn-badge-warning {
    background: rgba(245, 158, 11, 0.1);
    color: #f59e0b;
}

.learn-badge-danger {
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
}

.learn-badge-purple {
    background: rgba(139, 92, 246, 0.1);
    color: #8b5cf6;
}

/* ================================================
   API SECTION
   ================================================ */
.learn-api-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    align-items: center;
}

@media (min-width: 1024px) {
    .learn-api-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.learn-api-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: #1e293b;
    color: #fff;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.025em;
    text-transform: uppercase;
    border-radius: 4px;
    margin-bottom: 1.25rem;
}

.learn-api-content h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--learn-text);
    margin: 0 0 1rem;
    letter-spacing: -0.02em;
}

.learn-api-desc {
    font-size: 1.0625rem;
    color: var(--learn-text-muted);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.learn-api-features {
    list-style: none;
    padding: 0;
    margin: 0 0 2rem;
}

.learn-api-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0;
    font-size: 0.9375rem;
    color: var(--learn-text);
}

.learn-api-features i {
    color: #10b981;
    font-size: 1.125rem;
}

.learn-api-buttons {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

/* Code Window */
.learn-code-window {
    background: #0f172a;
    border-radius: var(--learn-radius);
    overflow: hidden;
    box-shadow: var(--learn-shadow-lg);
}

.learn-code-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.875rem 1.25rem;
    background: #1e293b;
    border-bottom: 1px solid #334155;
}

.learn-code-dots {
    display: flex;
    gap: 0.5rem;
}

.learn-code-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #334155;
}

.learn-code-dots span:first-child {
    background: #ef4444;
}

.learn-code-dots span:nth-child(2) {
    background: #f59e0b;
}

.learn-code-dots span:last-child {
    background: #10b981;
}

.learn-code-title {
    font-size: 0.8125rem;
    color: #94a3b8;
}

.learn-code-body {
    padding: 1.25rem;
}

.learn-code-endpoint {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #334155;
}

.learn-code-method {
    padding: 0.25rem 0.625rem;
    background: #10b981;
    color: #fff;
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: 4px;
}

.learn-code-endpoint code {
    color: #94a3b8;
    font-size: 0.875rem;
}

.learn-code-body pre {
    margin: 0;
}

.learn-code-body pre code {
    color: #e2e8f0;
    font-size: 0.8125rem;
    line-height: 1.7;
}

/* ================================================
   BUTTONS
   ================================================ */
.learn-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.9375rem;
    font-weight: 500;
    border-radius: var(--learn-radius-sm);
    text-decoration: none;
    transition: all var(--learn-transition);
    cursor: pointer;
    border: none;
}

.learn-btn-outline {
    background: transparent;
    color: var(--learn-primary);
    border: 1px solid var(--learn-primary);
}

.learn-btn-outline:hover {
    background: var(--learn-primary);
    color: #fff;
}

.learn-btn-dark {
    background: #1e293b;
    color: #fff;
}

.learn-btn-dark:hover {
    background: #0f172a;
}

.learn-btn-outline-dark {
    background: transparent;
    color: #1e293b;
    border: 1px solid #1e293b;
}

.learn-btn-outline-dark:hover {
    background: #1e293b;
    color: #fff;
}

.learn-btn-white {
    background: #fff;
    color: var(--learn-primary);
}

.learn-btn-white:hover {
    background: #f8fafc;
}

/* ================================================
   CTA SECTION
   ================================================ */
.learn-cta {
    background: linear-gradient(135deg, var(--learn-primary) 0%, #7c3aed 100%);
    padding: 3.5rem 0;
}

.learn-cta-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    text-align: center;
}

@media (min-width: 768px) {
    .learn-cta-content {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
}

.learn-cta-text h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #fff;
    margin: 0 0 0.5rem;
}

.learn-cta-text p {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
}

/* ================================================
   EMPTY STATE
   ================================================ */
.learn-empty-state {
    text-align: center;
    padding: 3rem 0;
}

.learn-empty-icon {
    font-size: 3.5rem;
    color: #cbd5e1;
    margin-bottom: 1rem;
}

.learn-empty-state h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--learn-text);
    margin: 0 0 0.5rem;
}

.learn-empty-state p {
    color: var(--learn-text-muted);
    margin: 0;
}