/* ===========================================
   میکرولرنینگ سهندان - Microlearning
   ========================================== */

/* متغیرها */
:root {
    --micro-primary: #4D96FF;
    --micro-primary-dark: #2563EB;
    --micro-accent: #6C5CE7;
    --micro-text: #1e293b;
    --micro-text-light: #64748b;
    --micro-bg: #f8fafc;
    --micro-white: #ffffff;
    --micro-border: #f1f5f9;
    --micro-shadow: 0 10px 30px rgba(0,0,0,0.03);
    --micro-shadow-hover: 0 20px 40px rgba(77,150,255,0.15);
    
    /* رنگ‌های مقاطع */
    --grade-kids: #4D96FF;
    --grade-teens: #A29BFE;
    --grade-high: #0066FF;
}

/* ===== بخش اصلی ===== */
.micro-main {
    background: var(--micro-bg);
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== انتخابگر مقطع ===== */
.grade-selector-section {
    padding: 60px 0 40px;
    background: linear-gradient(180deg, var(--micro-white) 0%, var(--micro-bg) 100%);
}

.section-title {
    font-size: 2rem;
    font-weight: 900;
    text-align: center;
    margin-bottom: 40px;
    color: var(--micro-text);
}

.section-title span {
    color: var(--micro-primary);
    position: relative;
}

.section-title span::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--micro-primary), transparent);
    border-radius: 2px;
}

.grade-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 900px;
    margin: 0 auto;
}

.grade-card {
    background: var(--micro-white);
    border: 2px solid var(--micro-border);
    border-radius: 24px;
    padding: 30px;
    text-align: center;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
}

.grade-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent 50%, rgba(77,150,255,0.1) 100%);
    opacity: 0;
    transition: opacity 0.4s;
}

.grade-card:hover::before,
.grade-card.active::before {
    opacity: 1;
}

.grade-card[data-grade="kids"]:hover,
.grade-card[data-grade="kids"].active {
    border-color: var(--grade-kids);
}

.grade-card[data-grade="teens"]:hover,
.grade-card[data-grade="teens"].active {
    border-color: var(--grade-teens);
}

.grade-card[data-grade="high"]:hover,
.grade-card[data-grade="high"].active {
    border-color: var(--grade-high);
}

.grade-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--micro-shadow-hover);
}

.grade-icon {
    width: 70px;
    height: 70px;
    border-radius: 20px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    transition: all 0.4s;
}

.grade-card[data-grade="kids"] .grade-icon {
    background: #eff6ff;
    color: var(--grade-kids);
}

.grade-card[data-grade="teens"] .grade-icon {
    background: #f3e5f5;
    color: var(--grade-teens);
}

.grade-card[data-grade="high"] .grade-icon {
    background: #e3f2fd;
    color: var(--grade-high);
}

.grade-card:hover .grade-icon,
.grade-card.active .grade-icon {
    background: var(--micro-primary);
    color: white;
    transform: scale(1.1) rotate(5deg);
}

.grade-card h3 {
    font-size: 1.3rem;
    font-weight: 900;
    margin: 0 0 5px 0;
    color: var(--micro-text);
}

.grade-card p {
    color: var(--micro-text-light);
    font-size: 0.9rem;
    margin: 0;
}

/* ===== ادامه یادگیری ===== */
.continue-section {
    padding: 40px 0;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
}

.section-header .section-title {
    margin-bottom: 0;
}

.view-all {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--micro-primary);
    text-decoration: none;
    font-weight: 600;
    padding: 8px 16px;
    background: rgba(77,150,255,0.1);
    border-radius: 12px;
    transition: all 0.3s;
}

.view-all:hover {
    background: var(--micro-primary);
    color: white;
    transform: translateX(-5px);
}

.horizontal-scroll {
    display: flex;
    gap: 20px;
    overflow-x: auto;
    padding: 10px 0 20px;
    scrollbar-width: thin;
    scrollbar-color: var(--micro-primary) var(--micro-border);
}

.horizontal-scroll::-webkit-scrollbar {
    height: 8px;
}

.horizontal-scroll::-webkit-scrollbar-track {
    background: var(--micro-border);
    border-radius: 10px;
}

.horizontal-scroll::-webkit-scrollbar-thumb {
    background: var(--micro-primary);
    border-radius: 10px;
}

.horizontal-scroll .lesson-card {
    flex: 0 0 280px;
}

/* ===== درس‌های ویژه ===== */
.featured-section {
    padding: 40px 0;
}

.featured-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 20px;
}

.featured-grid.small {
    grid-template-columns: repeat(4, 1fr);
}

.featured-card {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    height: 300px;
    cursor: pointer;
}

.featured-card.large {
    height: 400px;
}

.featured-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s;
}

.featured-card:hover img {
    transform: scale(1.1);
}

.featured-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.9) 0%, transparent 100%);
    padding: 25px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    color: white;
    opacity: 0.9;
    transition: opacity 0.4s;
}

.featured-card:hover .featured-overlay {
    opacity: 1;
}

.cat-badge {
    display: inline-block;
    padding: 5px 12px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 800;
    margin-bottom: 10px;
    width: fit-content;
}

.featured-overlay h3 {
    font-size: 1.5rem;
    font-weight: 900;
    margin: 0 0 10px 0;
}

.featured-overlay h4 {
    font-size: 1.1rem;
    font-weight: 800;
    margin: 0 0 5px 0;
}

.featured-overlay .meta {
    display: flex;
    gap: 15px;
    font-size: 0.9rem;
    opacity: 0.9;
    margin-bottom: 15px;
}

.play-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--micro-primary);
    color: white;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 600;
    width: fit-content;
    transition: all 0.3s;
}

.play-btn:hover {
    background: var(--micro-primary-dark);
    transform: translateX(5px);
}

/* ===== بخش فیلترها و گرید اصلی ===== */
.lessons-section {
    padding: 40px 0 80px;
}

.lessons-section .container {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 30px;
}

/* فیلترها */
.filter-sidebar {
    background: var(--micro-white);
    border-radius: 24px;
    padding: 25px;
    border: 1px solid var(--micro-border);
    box-shadow: var(--micro-shadow);
    height: fit-content;
    position: sticky;
    top: 100px;
}

.filter-sidebar h3 {
    font-size: 1.2rem;
    font-weight: 900;
    margin: 0 0 20px 0;
    color: var(--micro-text);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.filter-group {
    margin-bottom: 25px;
}

.filter-group h4 {
    font-size: 0.95rem;
    font-weight: 800;
    margin: 0 0 12px 0;
    color: var(--micro-text-light);
}

.filter-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.filter-option {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    padding: 5px 0;
}

.filter-option input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--micro-primary);
    cursor: pointer;
}

.filter-option span {
    color: var(--micro-text);
    font-size: 0.95rem;
}

.filter-option span i {
    margin-left: 6px;
}

.sort-select {
    width: 100%;
    padding: 10px;
    border: 2px solid var(--micro-border);
    border-radius: 12px;
    font-family: inherit;
    font-size: 0.95rem;
    color: var(--micro-text);
    background: white;
    cursor: pointer;
    outline: none;
    transition: border-color 0.3s;
}

.sort-select:focus {
    border-color: var(--micro-primary);
}

.reset-filters {
    width: 100%;
    padding: 12px;
    background: #fee2e2;
    border: none;
    border-radius: 12px;
    color: #ef4444;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    margin-top: 15px;
}

.reset-filters:hover {
    background: #ef4444;
    color: white;
}

/* گرید درس‌ها */
.lessons-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
}

.lesson-card {
    background: var(--micro-white);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--micro-border);
    transition: all 0.4s;
    position: relative;
}

.lesson-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--micro-shadow-hover);
    border-color: var(--micro-primary);
}

.card-image {
    height: 160px;
    position: relative;
    overflow: hidden;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s;
}

.lesson-card:hover .card-image img {
    transform: scale(1.1);
}

.type-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    width: 35px;
    height: 35px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1rem;
}

.type-badge.type-video { background: #ef4444; }
.type-badge.type-audio { background: #10b981; }
.type-badge.type-text { background: #f59e0b; }
.type-badge.type-infographic { background: #8b5cf6; }

.progress-bar {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 4px;
    background: var(--micro-primary);
    transition: width 0.3s;
}

.card-body {
    padding: 20px;
}

.card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.cat-tag {
    padding: 4px 10px;
    border-radius: 8px;
    font-size: 0.7rem;
    font-weight: 800;
    background: rgba(77,150,255,0.1);
    color: var(--micro-primary);
}

.duration {
    font-size: 0.75rem;
    color: var(--micro-text-light);
    display: flex;
    align-items: center;
    gap: 4px;
}

.card-title {
    font-size: 1.1rem;
    font-weight: 900;
    margin: 0 0 8px 0;
    color: var(--micro-text);
    line-height: 1.5;
}

.card-desc {
    font-size: 0.85rem;
    color: var(--micro-text-light);
    margin: 0 0 15px 0;
    line-height: 1.6;
}

.card-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--micro-primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s;
}

.card-link:hover {
    gap: 10px;
    color: var(--micro-primary-dark);
}

/* نتیجه‌ای یافت نشد */
.no-results {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px;
    background: var(--micro-white);
    border-radius: 30px;
    border: 2px dashed var(--micro-border);
}

.no-results i {
    font-size: 4rem;
    color: var(--micro-text-light);
    margin-bottom: 20px;
    opacity: 0.5;
}

.no-results h3 {
    font-size: 1.5rem;
    font-weight: 900;
    margin: 0 0 10px 0;
    color: var(--micro-text);
}

.no-results p {
    color: var(--micro-text-light);
}

/* ===== ریسپانسیو ===== */
@media (max-width: 1000px) {
    .lessons-section .container {
        grid-template-columns: 1fr;
    }

    .filter-sidebar {
        position: static;
        margin-bottom: 30px;
    }

    .featured-grid {
        grid-template-columns: 1fr;
    }

    .featured-grid.small {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 700px) {
    .grade-cards {
        grid-template-columns: 1fr;
        max-width: 400px;
    }

    .featured-grid.small {
        grid-template-columns: 1fr;
    }

    .featured-card.large {
        height: 300px;
    }

    .section-header {
        flex-direction: column;
        gap: 15px;
        align-items: flex-start;
    }
}
/* ===== میکرولرنینگ ===== */
.micro-main {
    /* این کلاس رو به تگ main دادیم */
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* ریست کردن استایل‌های هدر برای این صفحه */
.micro-main .container {
    width: 100%;
    padding: 0;
}

/* اگه هدر بهم ریخته، این رو اضافه کن */
header {
    position: relative;
    z-index: 100;
}

.like-btn.liked {
    background: #ef4444 !important;
    color: white !important;
}

.like-btn.liked i {
    animation: heartPop 0.3s ease;
}

@keyframes heartPop {
    0% { transform: scale(1); }
    50% { transform: scale(1.3); }
    100% { transform: scale(1); }
}

/* اسکرول بار کل صفحه */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f5f9;
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: #4D96FF;
    border-radius: 10px;
    border: 2px solid #f1f5f9;
}

::-webkit-scrollbar-thumb:hover {
    background: #2563EB;
}

/* برای فایرفاکس */
* {
    scrollbar-width: thin;
    scrollbar-color: #4D96FF #f1f5f9;
}
/* اسکرول با رنگ‌های مختلف برای بخش‌های مختلف */
.dark-scroll::-webkit-scrollbar-thumb {
    background: #1e293b;
}

.gradient-scroll::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #4D96FF, #6C5CE7);
}

/* اسکرول با گوشه‌های نرم‌تر */
.rounded-scroll::-webkit-scrollbar {
    width: 12px;
}

.rounded-scroll::-webkit-scrollbar-thumb {
    background: #4D96FF;
    border-radius: 20px;
    border: 3px solid #f1f5f9;
}