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


:root {
    --bg-color: #fbfbfd;
    --text-primary: #1d1d1f;
    --text-secondary: #86868b;
    --border-color: #d2d2d7;
    --accent-color: #0071e3;
    --accent-hover: #0077ed;
    --card-bg: #ffffff;
}


@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #000000;
        --text-primary: #f5f5f7;
        --text-secondary: #86868b;
        --border-color: #424245;
        --card-bg: #1c1c1e;
        --accent-color: #2997ff;
        --accent-hover: #147ce5;
    }
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}


.container {
    width: 100%;
    max-width: 480px;
    padding: 40px 24px;
}

.container-download {
    text-align: center;
}


.logo {
    font-size: 28px;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 4px;
    color: var(--text-primary);
    text-decoration: none;
}

.logo-small {
    font-size: 20px;
    margin-bottom: 40px;
    display: inline-block;
}

.subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 40px;
}


.upload-area {
    border: 1px dashed var(--border-color);
    border-radius: 14px;
    padding: 40px 20px;
    text-align: center;
    cursor: pointer;
    background-color: transparent;
    transition: all 0.2s ease;
}

.upload-area:hover, .upload-area.drag-over {
    background-color: var(--card-bg);
    border-color: var(--text-secondary);
}

.upload-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.upload-icon {
    color: var(--text-secondary);
}

.upload-text {
    font-size: 14px;
    font-weight: 500;
}


.progress-section {
    background-color: var(--card-bg);
    border-radius: 14px;
    padding: 20px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
}

.progress-info {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    margin-bottom: 12px;
}

.file-name {
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 80%;
}

.percent {
    color: var(--text-secondary);
}

.progress-bar-bg {
    height: 4px;
    background-color: var(--border-color);
    border-radius: 2px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    width: 0%;
    background-color: var(--accent-color);
    border-radius: 2px;
    transition: width 0.1s linear;
}


.result-section {
    background-color: var(--card-bg);
    border-radius: 14px;
    padding: 24px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
}

.result-info {
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.file-size {
    display: block;
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 4px;
}

.share-group {
    margin-bottom: 16px;
}

.share-label {
    display: block;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.share-input-group {
    display: flex;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
}


.share-input {
    flex: 1;
    border: none;
    background: transparent;
    padding: 10px 12px;
    font-size: 13px;
    color: var(--text-primary);
    outline: none;
    min-width: 0;
}

.copy-btn {
    background: transparent;
    border: none;
    border-left: 1px solid var(--border-color);
    padding: 0 16px;
    color: var(--accent-color);
    font-weight: 500;
    font-size: 13px;
    cursor: pointer;
    transition: color 0.1s;
}

.copy-btn:hover {
    color: var(--accent-hover);
}

.reset-btn {
    display: block;
    width: 100%;
    background: transparent;
    border: none;
    color: var(--accent-color);
    font-size: 14px;
    font-weight: 500;
    margin-top: 24px;
    cursor: pointer;
    padding: 8px;
}

.reset-btn:hover {
    text-decoration: underline;
}

.file-icon-large {
    color: var(--accent-color);
    margin-bottom: 20px;
}

.file-name-large {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
    word-break: break-word;
}


.file-meta {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.btn-primary {
    display: inline-block;
    background-color: var(--accent-color);
    color: #fff;
    text-decoration: none;
    padding: 12px 24px;
    border-radius: 20px;
    font-size: 15px;
    font-weight: 500;
    transition: background-color 0.2s;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
}

.hidden {
    display: none !important;
}


.toast {
    position: fixed;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 10px 20px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.3s ease;
}

@media (prefers-color-scheme: dark) {
    .toast {
        background: rgba(255, 255, 255, 0.9);
        color: black;
    }
}