/* ============================
   BASE
============================ */

html, body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    overflow: auto;
}

body {
    height: 100%;
    overflow-x: hidden;
}

.desktop-body {
    background-color: #220022;
    padding-top: 60px;                 /* под фиксированный header */
    height: calc(100vh - 130px);       /* под фиксированный footer */
    padding-bottom: 20px;
    box-sizing: border-box;
    color: #fff;
}

/* кастомный скроллбар */

body::-webkit-scrollbar {
    width: 10px;
}

body::-webkit-scrollbar-thumb {
    border-radius: 10px;
    background-color: #333;
}

body::-webkit-scrollbar-track {
    background-color: transparent;
}

/* ============================
   HEADER (как в index.css)
============================ */

.line {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 60px;
    background-color: #330033;
    z-index: 5;
    display: flex;
    align-items: center;
    padding-left: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.6);
}

.logotext {
    display: flex;
    align-items: center;
    cursor: pointer;
}

.line img {
    width: 50px;
}

.texttop {
    color: #FFF;
    margin-left: 10px;
    font-size: 32px;
    white-space: nowrap;
}

/* ============================
   CONTENT
============================ */

.desktop-content {
    padding: 40px 20px;
    text-align: center;
}

.desktop-content h1 {
    font-size: 32px;
    margin-bottom: 40px;
}

/* GRID */

.download-grid {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

/* CARD */

.download-card {
    align-self: flex-start;
    width: 330px;
    background: rgba(255,255,255,0.05);
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.4);
    text-align: center;
}

.os-title {
    font-size: 26px;
    margin-bottom: 20px;
}

/* BUTTONS */

.btn-wrapper {
    display: flex;
    align-items: stretch;
    width: 100%;
    margin-top: 20px;
}

.download-btn {
    flex: 1;
    background: #D51AC3;
    color: #fff;
    text-decoration: none;
    font-size: 20px;
    font-weight: 700;
    padding: 14px;
    border-radius: 12px 0 0 12px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.6);
    text-align: center;
}

.download-btn.single {
    border-radius: 12px !important;
}

.dropdown-btn {
    width: 55px;
    background: #8F00FF;
    border: none;
    border-radius: 0 12px 12px 0;
    cursor: pointer;
    position: relative;
}

.dropdown-btn::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: url('/static/arrow-up.png');
    background-repeat: no-repeat;
    background-position: center;
    background-size: 30px;
    transform: rotate(180deg);
    transition: transform 0.5s ease;
}

.dropdown-btn.open::before {
    transform: rotate(0deg);
}

/* DROPDOWN LIST */

.dropdown-list {
    list-style: none;
    padding: 0;
    margin: 10px 0 0 0;
    background: rgba(0,0,0,0.4);
    border-radius: 10px;
    display: none;
    width: 100%;
}

.dropdown-list li {
    padding: 10px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.dropdown-list li:last-child {
    border-bottom: none;
}

.dropdown-list a {
    color: #fff;
    text-decoration: none;
}

.dropdown-list a:hover {
    text-decoration: underline;
}

/* FILE INFO */

.file-info {
    margin-top: 10px;
    font-size: 15px;
    opacity: 0.75;
}

/* LINUX FORMAT SWITCH */

.linux-format-switch {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 15px;
}

.linux-format-btn {
    background: #8F00FF;
    border: none;
    padding: 8px 16px;
    border-radius: 10px;
    cursor: pointer;
    color: #fff;
    font-size: 16px;
    transition: 0.2s;
}

.linux-format-btn.active {
    background: #D51AC3;
    transform: scale(1.05);
}

/* ============================
   MOBILE ADAPTATION
============================ */

@media (max-width: 768px) {

    .texttop {
        font-size: 32px;
    }

    .desktop-content h1 {
        font-size: 26px;
    }

    .download-card {
        width: 90%;
        max-width: 320px;
        padding: 20px;
    }

    .os-title {
        font-size: 22px;
    }

    .download-btn {
        font-size: 18px;
    }

    .dropdown-btn {
        width: 50px;
    }
}

@media (max-width: 480px) {

    .desktop-content h1 {
        font-size: 22px;
    }

    .os-title {
        font-size: 20px;
    }

    .download-btn {
        font-size: 16px;
    }
}

/* ============================
   FOOTER
============================ */

body {
    --footer-bg: #330033;
    --footer-text: #fff;
    --footer-link: #8F00FF;
}