/* Darsak - Main Styles */

:root {
    --primary: #173B70;
    --primary-dark: #10294F;
    --gold: #D9AD45;
    --background: #F5F7FB;
    --white: #FFFFFF;
    --text: #1F2937;
    --muted: #64748B;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: Tahoma, Arial, sans-serif;
    direction: rtl;
    background: var(--background);
    color: var(--text);
    line-height: 1.8;
}

/* Header */

.site-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 14px 6%;
    background: var(--white);
    border-bottom: 3px solid var(--gold);
    box-shadow: 0 4px 18px rgba(23, 59, 112, 0.07);
}

/* Logo and Brand */

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--primary);
    font-size: 27px;
    font-weight: bold;
}

.brand img {
    width: 52px;
    height: 52px;
    object-fit: contain;
}

/* Navigation */

.main-nav {
    display: flex;
    align-items: center;
    gap: 28px;
}

.main-nav a {
    text-decoration: none;
    color: var(--text);
    font-size: 14px;
    transition: color 0.25s ease;
}

.main-nav a:hover {
    color: var(--gold);
}

/* Login Button */

.login-button {
    text-decoration: none;
    background: var(--primary);
    color: var(--white);
    padding: 9px 18px;
    border-radius: 10px;
    font-size: 14px;
    transition: background 0.25s ease,
                transform 0.25s ease;
}

.login-button:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

/* Hero Section */

.hero {
    text-align: center;
    padding: 100px 20px;
    background: linear-gradient(
        135deg,
        #FFFFFF 0%,
        #EAF0FA 100%
    );
}

.hero h1 {
    color: var(--primary);
    font-size: 38px;
    margin-bottom: 14px;
}

.hero p {
    color: var(--muted);
    font-size: 17px;
}

/* Mobile Layout */

@media (max-width: 768px) {
    .site-header {
        flex-wrap: wrap;
        justify-content: center;
        padding: 16px 5%;
    }

    .main-nav {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
        gap: 12px 20px;
    }

    .hero {
        padding: 70px 18px;
    }

    .hero h1 {
        font-size: 28px;
    }

    .hero p {
        font-size: 15px;
    }
}

/* Hero Improvements */

.hero-label {
    display: inline-block;
    color: var(--gold);
    font-weight: bold;
    margin-bottom: 10px;
}

.hero-button {
    display: inline-block;
    margin-top: 24px;
    padding: 11px 26px;
    background: var(--primary);
    color: var(--white);
    text-decoration: none;
    border-radius: 10px;
    transition: transform 0.25s ease,
                background 0.25s ease;
}

.hero-button:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
}

/* Courses Section */

.courses {
    padding: 75px 6%;
}

.section-heading {
    text-align: center;
    margin-bottom: 38px;
}

.section-heading span {
    color: var(--gold);
    font-weight: bold;
}

.section-heading h2 {
    color: var(--primary);
    font-size: 30px;
    margin: 8px 0;
}

.section-heading p {
    color: var(--muted);
}

/* Course Cards Grid */

.course-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
}

.course-card {
    background: var(--white);
    padding: 28px 24px;
    border: 1px solid #E5EAF2;
    border-radius: 16px;
    box-shadow: 0 5px 20px rgba(23, 59, 112, 0.04);
    transition: transform 0.25s ease,
                box-shadow 0.25s ease,
                border-color 0.25s ease;
}

.course-card:hover {
    transform: translateY(-6px);
    border-color: var(--gold);
    box-shadow: 0 12px 28px rgba(23, 59, 112, 0.10);
}

.course-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 58px;
    height: 58px;
    margin-bottom: 18px;
    border-radius: 14px;
    background: #EEF3FC;
    font-size: 29px;
}

.course-card h3 {
    color: var(--primary);
    font-size: 20px;
    margin-bottom: 8px;
}

.course-card p {
    color: var(--muted);
    font-size: 14px;
    margin-bottom: 18px;
}

.course-card a {
    color: var(--primary);
    font-weight: bold;
    font-size: 14px;
    text-decoration: none;
}

.course-card a:hover {
    color: #B88920;
}

/* Responsive Cards */

@media (max-width: 900px) {
    .course-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 560px) {
    .courses {
        padding: 50px 5%;
    }

    .course-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .section-heading h2 {
        font-size: 25px;
    }
}

/* Study Resources */

.resources {
    padding: 70px 6%;
    background: #EEF3FC;
}

.resource-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
}

.resource-card {
    display: flex;
    flex-direction: column;
    background: var(--white);
    padding: 26px;
    border: 1px solid #E0E7F1;
    border-radius: 16px;
    box-shadow: 0 5px 20px rgba(23, 59, 112, 0.04);
    transition: transform 0.25s ease,
                box-shadow 0.25s ease;
}

.resource-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 28px rgba(23, 59, 112, 0.10);
}

.resource-top,
.resource-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.resource-top {
    margin-bottom: 20px;
}

.pdf-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 54px;
    height: 60px;
    border-radius: 10px;
    background: #FFF0F0;
    color: #C0392B;
    font-size: 15px;
    font-weight: bold;
}

.resource-badge {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: bold;
}

.resource-badge.free {
    background: #E5F7EC;
    color: #247A45;
}

.resource-badge.premium {
    background: #FFF3D8;
    color: #956A10;
}

.resource-card h3 {
    color: var(--primary);
    font-size: 18px;
    margin-bottom: 10px;
}

.resource-card p {
    color: var(--muted);
    font-size: 14px;
    margin-bottom: 22px;
}

.resource-button {
    display: inline-block;
    align-self: flex-start;
    padding: 9px 16px;
    border-radius: 9px;
    background: var(--primary);
    color: var(--white);
    font-size: 13px;
    font-weight: bold;
    text-decoration: none;
    transition: background 0.2s ease;
}

.resource-button:hover {
    background: var(--primary-dark);
}

.resource-bottom {
    margin-top: auto;
}

.resource-price {
    color: #956A10;
    font-size: 13px;
    font-weight: bold;
}

.resource-bottom .resource-button {
    align-self: auto;
}

@media (max-width: 900px) {
    .resource-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 560px) {
    .resources {
        padding: 50px 5%;
    }

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

/* Resource Filters */

.resource-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 30px;
}

.filter-btn {
    padding: 10px 22px;
    border: 1px solid #D8E1EF;
    border-radius: 10px;
    background: #FFFFFF;
    color: var(--primary);
    font-family: inherit;
    font-size: 14px;
    cursor: pointer;
    transition:
        background 0.2s ease,
        color 0.2s ease,
        border-color 0.2s ease,
        transform 0.2s ease;
}

.filter-btn:hover {
    border-color: var(--gold);
    transform: translateY(-2px);
}

.filter-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: #FFFFFF;
}

.resource-card.hidden {
    display: none;
}
.resource-search {
    max-width: 500px;
    margin: 0 auto 20px;
}

.resource-search input {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid #dbe4f0;
    border-radius: 12px;
    font-size: 16px;
    outline: none;
    box-sizing: border-box;
    transition: border-color 0.3s, box-shadow 0.3s;
    direction: rtl;
}

.resource-search input:focus {
    border-color: #2563eb;
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}
.resource-sort {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin: 0 auto 20px;
    direction: rtl;
}

.resource-sort select {
    padding: 10px 14px;
    border: 2px solid #dbe4f0;
    border-radius: 10px;
    background: white;
    color: #1e293b;
    font-size: 14px;
    cursor: pointer;
}
.school-levels {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
    width: 100%;
    align-items: stretch;
}

.school-level {
    width: 100%;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    direction: rtl;
    padding: 24px;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
}

.school-level h3 {
    color: #1d4ed8;
    font-size: 24px;
    margin: 0 0 8px;
}

.school-level > p {
    color: #64748b;
    margin-bottom: 22px;
    line-height: 1.8;
}

.school-level .course-grid {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.school-level {
    direction: rtl;
}
/* Tablets */
@media (max-width: 900px) {
    .school-levels {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

/* Mobile phones */
@media (max-width: 600px) {
    .school-levels {
        grid-template-columns: 1fr;
    }

    .school-level {
        padding: 18px;
    }

    .school-level h3 {
        font-size: 21px;
    }
}
.grade-button {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #dbe4f0;
    border-radius: 10px;
    background: #f8fafc;
    color: #1e3a8a;
    font-family: inherit;
    font-size: 15px;
    cursor: pointer;
    transition: background 0.2s, color 0.2s, transform 0.2s;
}

.grade-button:hover {
    background: #2563eb;
    color: #ffffff;
    transform: translateY(-2px);
}

.grade-button:focus-visible {
    outline: 3px solid #fbbf24;
    outline-offset: 3px;
}
/* Book selection page */
.books-page {
    max-width: 1200px;
    margin: 0 auto;
    padding: 50px 24px;
}

.book-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
    margin-top: 36px;
}

.book-card {
    padding: 28px;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 4px 14px rgba(15, 23, 42, 0.04);
    transition: transform 0.2s, box-shadow 0.2s;
}

.book-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 28px rgba(15, 23, 42, 0.09);
}

.book-icon {
    font-size: 42px;
    margin-bottom: 14px;
}

.book-card h2 {
    color: #1d4ed8;
    font-size: 22px;
    margin: 0 0 12px;
}

.book-card p {
    color: #64748b;
    line-height: 1.9;
    margin-bottom: 22px;
}

.book-card .resource-button {
    display: inline-block;
    text-decoration: none;
}

@media (max-width: 900px) {
    .book-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 600px) {
    .books-page {
        padding: 32px 16px;
    }

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

    .book-card {
        padding: 22px;
    }
}
/* هماهنگ‌سازی هدر صفحه اصلی درسک */
.site-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
    padding: 15px 5%;
    box-sizing: border-box;
}

.site-header .brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    font-size: 22px;
    font-weight: bold;
}

.site-header .brand img {
    width: 55px;
    height: 55px;
    object-fit: contain;
}

.site-header .main-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
}

.site-header .main-nav a,
.site-header .login-button {
    display: inline-block;
    padding: 10px 16px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
    transition: background 0.2s, color 0.2s, transform 0.2s;
}

.site-header .main-nav a:hover {
    background: #1769d2;
    color: #fff;
    transform: translateY(-2px);
}

.site-header .login-button {
    background: #1769d2;
    color: #fff;
}

.site-header .login-button:hover {
    background: #1055ad;
    transform: translateY(-2px);
}

@media (max-width: 700px) {
    .site-header {
        justify-content: center;
    }

    .site-header .main-nav {
        width: 100%;
        gap: 6px;
    }

    .site-header .main-nav a,
    .site-header .login-button {
        padding: 9px 11px;
    }
}
/* ===== منوی حساب کاربری درسک ===== */

.account-wrapper {
    position: relative;
    display: inline-block;
    z-index: 1000;
}

.site-header .account-toggle {
    border: none;
    cursor: pointer;
    font-family: inherit;
    font-size: 14px;
}

.account-menu {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    min-width: 210px;
    padding: 10px;
    background: #ffffff;
    color: #222222;
    border: 1px solid #e5eaf2;
    border-radius: 14px;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.14);
    display: flex;
    flex-direction: column;
    gap: 5px;
    text-align: right;
}

.account-menu[hidden] {
    display: none;
}

.account-menu .account-email {
    margin: 0;
    padding: 12px 10px;
    color: #1769d2;
    font-size: 13px;
    font-weight: 700;
    overflow-wrap: anywhere;
    border-bottom: 1px solid #e8edf5;
    direction: ltr;
    text-align: right;
}

.account-menu a,
.account-menu .account-logout {
    display: block;
    width: 100%;
    box-sizing: border-box;
    padding: 11px 12px;
    border: none;
    border-radius: 9px;
    background: transparent;
    color: #263449;
    font-family: inherit;
    font-size: 14px;
    text-align: right;
    text-decoration: none;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
}

.account-menu a:hover {
    background: #edf5ff;
    color: #1769d2;
}

.account-menu .account-logout {
    color: #d64545;
    border-top: 1px solid #eeeeee;
    border-radius: 0 0 9px 9px;
    margin-top: 3px;
}

.account-menu .account-logout:hover {
    background: #fff0f0;
    color: #b42323;
}

@media (max-width: 700px) {
    .account-menu {
        left: 50%;
        transform: translateX(-50%);
        min-width: 200px;
    }
}