/* =============================================
 * Coded By - DARK LMNx9 (Limon Hossain)
 * GitHub - https://github.com/LMNx9-JOHNY
 * Website - https://dark.lmnx9.workers.dev
 * WhatsApp - https://wa.me/+8801882168975
 * Telegram - https://t.me/x_LMNx9
============================================= */
:root {
    --hb-primary: #1b4d3e;
    --hb-dark-green: #0f3a2e;
    --hb-purple: #800080;
    --hb-deep-pink: #ff1493;
    --hb-purple-light: #f3e8f3;
    --hb-pink-light: #fff0f7;
    --hb-primary-light: #e8f3ef;

    --text-dark: #1a1a1a;
    --text-light: #4a4a4a;
    --text-muted: #666666;
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    --border-light: #e1e1e1;

    --shadow-sm: 0 5px 15px rgba(27, 77, 62, 0.08);
    --shadow-md: 0 10px 25px rgba(128, 0, 128, 0.1);
    --shadow-lg: 0 20px 40px rgba(255, 20, 147, 0.15);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Mina", sans-serif;
}

body {
    background-color: var(--bg-light);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding-top: 70px;
}

.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.98);
    z-index: 9999;
    padding: 10px 24px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    display: flex;
    align-items: center;
    justify-content: space-between;
    backdrop-filter: blur(10px);
}

#LOGO {
    width: 130px;
    height: auto;
    transition: var(--transition);
}

#LOGO:hover {
    transform: scale(1.05);
}

.profile-img {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: 2px solid var(--hb-primary);
    object-fit: cover;
    transition: var(--transition);
    box-shadow: 0 2px 8px rgba(27, 77, 62, 0.2);
}

.profile-img:hover {
    transform: scale(1.1);
    border-color: var(--hb-deep-pink);
    box-shadow: 0 4px 12px rgba(255, 20, 147, 0.3);
}

.page-header {
    background: linear-gradient(
        135deg,
        var(--hb-primary) 0%,
        var(--hb-purple) 50%,
        var(--hb-deep-pink) 100%
    );
    color: #fff;
    padding: 40px 20px;
    margin: -50px 0 30px 0;
    border-radius: 0 0 30px 30px;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
    text-align: center;
}

.page-header:before {
    content: "";
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(
        circle,
        rgba(255, 255, 255, 0.1) 0%,
        transparent 70%
    );
    animation: rotate 20s linear infinite;
}

.page-header h1 {
    color: #fff;
    font-size: clamp(24px, 5vw, 36px);
    font-weight: 700;
    margin-bottom: 10px;
    position: relative;
    animation: fadeInDown 1s ease;
}

.page-header p {
    color: rgba(255, 255, 255, 0.9);
    font-size: clamp(14px, 3vw, 18px);
    position: relative;
    animation: fadeInUp 1s ease 0.2s both;
    max-width: 600px;
    margin: 0 auto;
}

@keyframes rotate {
    from {
        transform: rotate(0);
    }
    to {
        transform: rotate(360deg);
    }
}

.search-box {
    position: relative;
    margin-bottom: 20px;
    margin-top: -37px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.search-box input {
    width: 100%;
    padding: 15px 20px 15px 50px;
    border: 2px solid var(--border-light);
    border-radius: 20px;
    font-size: 16px;
    transition: var(--transition);
    background: var(--bg-white);
}

.search-box input:focus {
    outline: none;
    border-color: var(--hb-purple);
    box-shadow: 0 0 0 4px rgba(128, 0, 128, 0.1);
}

.search-box i {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--hb-primary);
    font-size: 18px;
}

.filter-section {
    background: var(--bg-white);
    border-radius: 20px;
    padding: 20px;
    margin-bottom: 30px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
}

.filter-title {
    color: var(--hb-primary);
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid transparent;
    border-image: linear-gradient(
        90deg,
        var(--hb-primary),
        var(--hb-deep-pink)
    );
    border-image-slice: 1;
    display: flex;
    align-items: center;
    gap: 10px;
}

.filter-title i {
    color: var(--hb-deep-pink);
    font-size: 20px;
}

.filter-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.filter-btn {
    padding: 10px 20px;
    border: 2px solid var(--hb-primary);
    border-radius: 30px;
    background: transparent;
    color: var(--hb-primary);
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
    flex: 0 1 auto;
    min-width: 80px;
}

.filter-btn:hover {
    border-color: var(--hb-deep-pink);
    color: var(--hb-deep-pink);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.filter-btn.active {
    background: linear-gradient(135deg, var(--hb-primary), var(--hb-purple));
    border-color: transparent;
    color: #fff;
    box-shadow: 0 5px 15px rgba(128, 0, 128, 0.3);
}

.category-card {
    background: var(--bg-white);
    border-radius: 20px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border-left: 5px solid transparent;
    border-image: linear-gradient(
        135deg,
        var(--hb-primary),
        var(--hb-deep-pink)
    );
    border-image-slice: 1;
    position: relative;
    overflow: hidden;
}

.category-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(
        90deg,
        var(--hb-primary),
        var(--hb-purple),
        var(--hb-deep-pink)
    );
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.category-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.category-card:hover::before {
    transform: scaleX(1);
}

.category-header {
    display: flex;
    align-items: center;
    gap: 15px;
    cursor: pointer;
    user-select: none;
}

.category-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--hb-primary), var(--hb-purple));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 20px;
    flex-shrink: 0;
}

.category-title {
    flex: 1;
}

.category-title h3 {
    color: var(--hb-primary);
    font-size: clamp(16px, 4vw, 20px);
    font-weight: 600;
    margin: 0;
}

.category-title p {
    color: var(--text-muted);
    font-size: 13px;
    margin: 5px 0 0;
}

.category-toggle {
    color: var(--hb-deep-pink);
    font-size: 18px;
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.category-toggle.rotated {
    transform: rotate(180deg);
}

.files-list {
    display: none;
    padding: 15px 0 0;
    margin-top: 15px;
    border-top: 1px solid var(--border-light);
}

.files-list.show {
    display: block;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.file-item {
    display: flex;
    align-items: center;
    padding: 15px;
    background: var(--bg-light);
    border-radius: 12px;
    margin-bottom: 10px;
    transition: var(--transition);
    border: 1px solid var(--border-light);
    gap: 15px;
}

.file-item:hover {
    border-color: var(--hb-deep-pink);
    box-shadow: var(--shadow-md);
}

.file-icon {
    width: 45px;
    height: 45px;
    background: linear-gradient(
        135deg,
        var(--hb-primary-light),
        var(--hb-pink-light)
    );
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--hb-primary);
    font-size: 20px;
    flex-shrink: 0;
}

.file-info {
    flex: 1;
    min-width: 0;
}

.file-name {
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 5px;
    font-size: clamp(13px, 3vw, 15px);
    word-break: break-word;
}

.file-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 15px;
    font-size: 12px;
    color: var(--text-muted);
}

.file-meta span {
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.file-meta i {
    color: var(--hb-deep-pink);
    font-size: 12px;
}

.file-size {
    background: linear-gradient(
        135deg,
        var(--hb-primary-light),
        var(--hb-pink-light)
    );
    padding: 3px 8px;
    border-radius: 5px;
    color: var(--hb-primary);
    font-size: 11px;
    font-weight: 600;
    white-space: nowrap;
}

.download-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--hb-primary), var(--hb-purple));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: var(--transition);
    flex-shrink: 0;
}

.download-btn:hover {
    background: linear-gradient(135deg, var(--hb-purple), var(--hb-deep-pink));
    transform: scale(1.1);
    color: #fff;
    box-shadow: var(--shadow-sm);
}

.no-results {
    text-align: center;
    padding: 50px 20px;
    background: var(--bg-white);
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
    margin: 20px 0;
    border: 1px solid var(--border-light);
}

.no-results i {
    font-size: 50px;
    color: var(--hb-primary);
    margin-bottom: 20px;
}

.no-results h3 {
    color: var(--text-dark);
    font-size: clamp(18px, 4vw, 22px);
    margin-bottom: 10px;
}

.no-results p {
    color: var(--text-muted);
    font-size: 14px;
}

@media (max-width: 768px) {
    body {
        padding-top: 60px;
    }

    .main-nav {
        padding: 8px 16px;
    }

    #LOGO {
        width: 100px;
    }

    .profile-img {
        width: 36px;
        height: 36px;
    }

    .page-header {
        padding: 30px 15px;
        border-radius: 0 0 20px 20px;
    }

    .filter-section {
        padding: 15px;
    }

    .filter-buttons {
        gap: 8px;
    }

    .filter-btn {
        padding: 8px 16px;
        font-size: 13px;
        min-width: 70px;
    }

    .category-card {
        padding: 15px;
    }

    .file-item {
        padding: 12px;
        gap: 12px;
    }

    .file-icon {
        width: 40px;
        height: 40px;
        font-size: 18px;
    }

    .file-meta {
        gap: 8px 12px;
    }
}

@media (max-width: 480px) {
    .main-nav {
        padding: 6px 12px;
    }

    #LOGO {
        width: 85px;
    }

    .profile-img {
        width: 32px;
        height: 32px;
    }

    .page-header {
        padding: 25px 12px;
    }

    .filter-btn {
        padding: 6px 12px;
        font-size: 12px;
        min-width: 60px;
    }

    .file-item {
        flex-wrap: wrap;
    }

    .download-btn {
        width: 100%;
        height: 38px;
        border-radius: 8px;
        margin-top: 5px;
    }

    .file-info {
        width: 100%;
    }

    .file-meta {
        font-size: 11px;
    }

    .category-icon {
        width: 45px;
        height: 45px;
        font-size: 18px;
    }
}

@media (max-height: 500px) and (orientation: landscape) {
    .page-header {
        padding: 15px;
    }
}

@media (hover: none) {
    .filter-btn:hover,
    .download-btn:hover {
        transform: none;
    }

    .category-card:hover {
        transform: none;
    }
}