/* Main styles for the unified sign page */

/* 导入所有组件样式 */
@import url('./header.css');
@import url('./upload-area.css');
@import url('./signing-method.css');
@import url('./server-file-selector.css');
@import url('./advanced-options.css');
@import url('./password-input.css');
@import url('./progress-bar.css');
@import url('./sign-button.css');
@import url('./modal.css');
@import url('./result-section.css');

/* 全局样式 */
* {
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    margin: 0;
    padding: 0;
    background: #f8f9fa;
    color: #212529;
    line-height: 1.6;
    min-height: 100vh;
    background-image: radial-gradient(circle at 10% 20%, rgba(67, 97, 238, 0.05) 0%, rgba(248, 249, 250, 0.8) 90%);
    position: relative;
}

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* 卡片 */
.card {
    background: #ffffff;
    border-radius: 16px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    padding: 30px;
    margin-bottom: 20px;
    border: 1px solid #e9ecef;
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

/* 警告框 */
.alert {
    padding: 15px;
    border-radius: 12px;
    margin-bottom: 20px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.alert-success {
    background: rgba(76, 201, 240, 0.15);
    color: #0a5c78;
    border: 1px solid rgba(76, 201, 240, 0.3);
}

.alert-warning {
    background: rgba(247, 37, 133, 0.15);
    color: #7a1242;
    border: 1px solid rgba(247, 37, 133, 0.3);
}

.alert-danger {
    background: rgba(230, 57, 70, 0.15);
    color: #7a121a;
    border: 1px solid rgba(230, 57, 70, 0.3);
}

.alert-info {
    background: rgba(67, 97, 238, 0.15);
    color: #122a7a;
    border: 1px solid rgba(67, 97, 238, 0.3);
}

/* 隐藏类 */
.hidden {
    display: none !important;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    .card {
        padding: 20px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 10px;
    }
    
    .card {
        padding: 15px;
    }
}