:root {
    --bg: #1e1e2e;
    --bg2: #2a2a3e;
    --accent: #7c6af7;
    --accent2: #a89cfa;
    --accent-pressed: #5a4ed4;
    --fg: #cdd6f4;
    --fg-dim: #6c7086;
    --success: #a6e3a1;
    --error: #f38ba8;
    --radius: 8px;
    --font-stack: "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body {
    margin: 0;
    padding: 0;
    background-color: var(--bg);
    color: var(--fg);
    font-family: var(--font-stack);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.app-container {
    width: 480px;
    box-sizing: border-box;
    padding: 20px 0;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
    margin-bottom: 6px;
}

.title {
    margin: 0;
    font-size: 19px;
    /* roughly matches font 13 bold in tkinter */
    font-weight: bold;
}

.separator {
    border: none;
    height: 1px;
    background-color: var(--bg2);
    margin: 4px 20px;
}

.card {
    background-color: var(--bg2);
    border-radius: var(--radius);
    padding: 32px 12px;
    margin: 12px 20px;
    text-align: center;
    transition: background-color 0.2s;
    cursor: pointer;
    border: 2px dashed transparent;
}

.card.drag-hover {
    background-color: var(--accent);
}

.card.drag-hover .file-label {
    color: #ffffff;
}

.file-label {
    font-size: 14px;
    color: var(--fg);
    pointer-events: none;
}

.btn-row {
    display: flex;
    padding: 4px 20px 0;
    gap: 8px;
}

button {
    font-family: var(--font-stack);
    border: none;
    border-radius: var(--radius);
    padding: 14px 16px;
    font-size: 14px;
    cursor: pointer;
    transition: background-color 0.15s, color 0.15s;
    outline: none;
}

.btn-ghost {
    background-color: var(--bg2);
    color: var(--fg);
}

.btn-ghost:hover {
    background-color: #353550;
}

.btn-ghost:active {
    background-color: var(--bg2);
}

.btn-accent {
    background-color: var(--accent);
    color: #ffffff;
    font-weight: bold;
}

.btn-accent:hover:not(:disabled) {
    background-color: var(--accent2);
}

.btn-accent:active:not(:disabled) {
    background-color: var(--accent-pressed);
}

.btn-accent:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.progress-bar {
    height: 5px;
    background-color: var(--bg2);
    margin: 16px 20px 4px;
    border-radius: 3px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    width: 0%;
    background-color: var(--accent);
    transition: width 0.3s ease;
}

.status-label {
    font-size: 13px;
    color: var(--fg-dim);
    padding: 0 20px;
    margin-top: 10px;
}

#info {
    display: block;
    font-size: 13px;
    color: var(--fg-dim);
    padding: 0 20px;
    margin-top: 10px;
    text-align: center;
}

#windowsversion {
    display: block;
    font-size: 13px;
    color: var(--fg-dim);
    padding: 0 20px;
    margin-top: 10px;
    text-align: center;
}

.icon {
    width: 1em;
    height: 1em;
    margin: 10px 0px 0px 0px;
}