/* 现代化UI重设计 - FaviconMaker */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #4361ee;
    --primary-light: #4895ef;
    --primary-dark: #3a0ca3;
    --secondary: #f72585;
    --secondary-light: #ff758f;
    --success: #4cc9f0;
    --success-dark: #4895ef;
    --neutral-100: #ffffff;
    --neutral-200: #f8f9fa;
    --neutral-300: #e9ecef;
    --neutral-400: #dee2e6;
    --neutral-500: #adb5bd;
    --neutral-600: #6c757d;
    --neutral-700: #495057;
    --neutral-800: #343a40;
    --neutral-900: #212529;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --rounded-sm: 6px;
    --rounded-md: 12px;
    --rounded-lg: 18px;
    --font-main: 'Segoe UI', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Roboto, sans-serif;
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

body {
    font-family: var(--font-main);
    line-height: 1.6;
    color: var(--neutral-800);
    background-color: var(--neutral-200);
    background-image: linear-gradient(120deg, #f6f7f8 0%, #e8eaed 100%);
    background-attachment: fixed;
    min-height: 100vh;
}

.container {
    display: grid;
    grid-template-columns: 1fr 300px;
    grid-template-areas: 
        "header header"
        "main sidebar"
        "footer footer";
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    gap: 24px;
}

/* 头部样式 */
header {
    grid-area: header;
    margin-bottom: 30px;
    padding: 30px;
    background-color: var(--neutral-100);
    border-radius: var(--rounded-md);
    box-shadow: var(--shadow-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    background-image: linear-gradient(135deg, rgba(67, 97, 238, 0.05) 0%, rgba(76, 201, 240, 0.05) 100%);
    border-left: 4px solid var(--primary);
}

.header-content {
    flex: 1;
    text-align: left;
}

header h1 {
    color: var(--primary);
    margin-bottom: 12px;
    font-size: 2.2rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    position: relative;
    display: inline-block;
}

/* Logo链接样式 */
.logo-link {
    text-decoration: none;
    color: var(--primary);
    transition: color var(--transition-fast);
    position: relative;
}

.logo-link:hover, .logo-link:visited, .logo-link:active {
    color: var(--primary-dark);
    text-decoration: none;
}

.logo-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -2px;
    left: 0;
    background-color: var(--primary-dark);
    transition: width var(--transition-fast);
}

.logo-link:hover::after {
    width: 100%;
}

header p {
    color: var(--neutral-700);
    font-size: 1.1rem;
    max-width: 80%;
    font-weight: 400;
}

/* 主内容区域 */
main {
    grid-area: main;
}

section {
    background-color: var(--neutral-100);
    border-radius: var(--rounded-md);
    box-shadow: var(--shadow-md);
    padding: 30px;
    margin-bottom: 24px;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    border-top: 4px solid transparent;
}

section:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.upload-section {
    border-top-color: var(--primary);
}

.result-section {
    border-top-color: var(--success);
}

section h2 {
    color: var(--primary-dark);
    margin-bottom: 24px;
    border-bottom: 1px solid var(--neutral-300);
    padding-bottom: 12px;
    font-size: 1.5rem;
    font-weight: 600;
    position: relative;
}

section h2::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 60px;
    height: 3px;
    background-color: var(--primary);
    border-radius: 3px;
}

/* 上传区域 */
.file-input-container {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    position: relative;
}

input[type="file"] {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.custom-file-input {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 24px;
    background-color: var(--primary);
    color: white;
    cursor: pointer;
    border-radius: var(--rounded-sm);
    transition: background-color var(--transition-normal);
    font-weight: 500;
    box-shadow: 0 2px 6px rgba(67, 97, 238, 0.3);
}

.custom-file-input::before {
    content: '📂';
    margin-right: 8px;
    font-size: 1.2em;
}

.custom-file-input:hover {
    background-color: var(--primary-dark);
    box-shadow: 0 4px 10px rgba(67, 97, 238, 0.4);
}

#file-name {
    margin-left: 12px;
    color: var(--neutral-700);
    padding: 6px 12px;
    background-color: var(--neutral-200);
    border-radius: var(--rounded-sm);
    font-size: 0.9rem;
    display: inline-block;
    max-width: 220px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.limits {
    font-size: 0.85rem;
    color: var(--neutral-600);
    margin-bottom: 20px;
    padding-left: 8px;
    border-left: 2px solid var(--neutral-400);
}

.submit-btn {
    display: block;
    width: 100%;
    padding: 14px;
    background-color: var(--success);
    color: white;
    border: none;
    border-radius: var(--rounded-sm);
    cursor: pointer;
    font-size: 1.05rem;
    font-weight: 600;
    transition: all var(--transition-normal);
    box-shadow: 0 2px 6px rgba(76, 201, 240, 0.3);
    letter-spacing: 0.5px;
    position: relative;
    overflow: hidden;
}

.submit-btn::after {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        transparent
    );
    transition: 0.4s;
}

.submit-btn:hover {
    background-color: var(--success-dark);
    box-shadow: 0 4px 12px rgba(76, 201, 240, 0.4);
    transform: translateY(-2px);
}

.submit-btn:hover::after {
    left: 100%;
}

/* 消息样式 */
.message {
    margin-top: 24px;
    padding: 16px;
    border-radius: var(--rounded-sm);
    position: relative;
    padding-left: 50px;
    font-weight: 500;
}

.message::before {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.5rem;
}

.success {
    background-color: rgba(76, 201, 240, 0.15);
    color: #0077b6;
    border: 1px solid rgba(76, 201, 240, 0.3);
}

.success::before {
    content: '✅';
}

.error {
    background-color: rgba(247, 37, 133, 0.15);
    color: #9d0208;
    border: 1px solid rgba(247, 37, 133, 0.3);
}

.error::before {
    content: '❌';
}

/* 重置按钮 */
.reset-section {
    margin-top: 20px;
    text-align: center;
}

.reset-btn {
    display: inline-flex;
    align-items: center;
    padding: 10px 18px;
    background-color: var(--neutral-800);
    color: white;
    text-decoration: none;
    border-radius: var(--rounded-sm);
    font-size: 0.95rem;
    font-weight: 500;
    transition: all var(--transition-normal);
    box-shadow: 0 2px 6px rgba(33, 37, 41, 0.3);
}

.reset-btn::before {
    content: '↺';
    margin-right: 8px;
    font-weight: bold;
}

.reset-btn:hover {
    background-color: var(--neutral-900);
    box-shadow: 0 4px 10px rgba(33, 37, 41, 0.4);
    transform: translateY(-2px);
}

/* 结果区域 */
.preview-container {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    margin-bottom: 24px;
    padding: 16px;
    background-color: var(--neutral-200);
    border-radius: var(--rounded-sm);
}

.preview {
    flex: 1;
    min-width: 150px;
    text-align: center;
    background-color: var(--neutral-100);
    padding: 20px;
    border-radius: var(--rounded-sm);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-fast);
    border: 1px solid var(--neutral-300);
}

.preview:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.preview h3 {
    margin-bottom: 14px;
    color: var(--neutral-700);
    font-weight: 600;
    font-size: 1rem;
}

.icon-preview {
    background: 
        linear-gradient(45deg, var(--neutral-300) 25%, transparent 25%),
        linear-gradient(-45deg, var(--neutral-300) 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, var(--neutral-300) 75%),
        linear-gradient(-45deg, transparent 75%, var(--neutral-300) 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
    width: 120px;
    height: 120px;
    border-radius: var(--rounded-sm);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

.no-preview {
    color: var(--neutral-600);
    font-size: 0.85rem;
    text-align: center;
    font-style: italic;
}

.original-preview {
    width: 120px;
    height: 120px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border-radius: var(--rounded-sm);
    border: 1px solid var(--neutral-300);
    background-color: var(--neutral-200);
}

.original-preview img {
    object-fit: contain;
    max-width: 100%;
    max-height: 100%;
}

/* 下载区域 */
.download-container {
    text-align: center;
}

.download-options {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
    margin-bottom: 26px;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 30px;
    background-color: var(--primary);
    color: white;
    text-decoration: none;
    border-radius: var(--rounded-sm);
    font-weight: 600;
    transition: all var(--transition-normal);
    box-shadow: 0 2px 8px rgba(67, 97, 238, 0.3);
    position: relative;
    overflow: hidden;
}

.download-btn::before {
    content: '⬇️';
    margin-right: 10px;
    font-size: 1.1em;
}

.download-btn::after {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        transparent
    );
    transition: 0.4s;
}

.download-btn:hover {
    background-color: var(--primary-dark);
    box-shadow: 0 4px 12px rgba(67, 97, 238, 0.4);
    transform: translateY(-3px);
}

.download-btn:hover::after {
    left: 100%;
}

.download-zip {
    background-color: var(--secondary);
    box-shadow: 0 2px 8px rgba(247, 37, 133, 0.3);
}

.download-zip::before {
    content: '📦';
}

.download-zip:hover {
    background-color: #d90166;
    box-shadow: 0 4px 12px rgba(247, 37, 133, 0.4);
}

.individual-downloads {
    margin: 30px 0;
    padding: 24px;
    background-color: var(--neutral-200);
    border-radius: var(--rounded-md);
    border: 1px solid var(--neutral-300);
    box-shadow: var(--shadow-sm);
}

.individual-downloads h3 {
    margin-bottom: 18px;
    color: var(--neutral-700);
    font-weight: 600;
    font-size: 1.1rem;
    position: relative;
    display: inline-block;
}

.individual-downloads h3::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 40px;
    height: 2px;
    background-color: var(--primary);
}

.individual-links {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.individual-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: var(--neutral-800);
    padding: 16px;
    border-radius: var(--rounded-sm);
    transition: all var(--transition-normal);
    background-color: var(--neutral-100);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--neutral-300);
    width: 100px;
}

.individual-link:hover {
    background-color: var(--neutral-100);
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
    border-color: var(--primary-light);
}

.individual-link img {
    border: 1px solid var(--neutral-300);
    margin-bottom: 10px;
    padding: 6px;
    background-color: white;
    border-radius: 4px;
}

.individual-link span {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--neutral-700);
}

.usage-info {
    text-align: left;
    border-top: 1px solid var(--neutral-300);
    padding-top: 24px;
    margin-top: 20px;
}

.usage-info h3 {
    margin-bottom: 14px;
    color: var(--neutral-700);
    font-weight: 600;
    font-size: 1.1rem;
}

.usage-info p {
    color: var(--neutral-700);
    margin-bottom: 12px;
    line-height: 1.5;
}

.usage-info pre {
    background-color: var(--neutral-800);
    color: #e9ecef;
    padding: 16px;
    border-radius: var(--rounded-sm);
    overflow-x: auto;
    margin-top: 14px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.9rem;
    line-height: 1.5;
    box-shadow: inset 0 0 8px rgba(0, 0, 0, 0.2);
}

/* 广告侧边栏 */
.ad-sidebar {
    grid-area: sidebar;
}

.ad-container {
    background-color: var(--neutral-100);
    border-radius: var(--rounded-md);
    box-shadow: var(--shadow-md);
    padding: 20px;
    height: 100%;
    min-height: 250px;
    position: sticky;
    top: 20px;
    border-top: 4px solid var(--neutral-500);
}

/* 页脚 */
footer {
    grid-area: footer;
    text-align: center;
    color: var(--neutral-600);
    padding: 24px;
    border-top: 1px solid var(--neutral-300);
    margin-top: 20px;
    background-color: var(--neutral-100);
    border-radius: var(--rounded-md);
    box-shadow: var(--shadow-sm);
}

footer p {
    position: relative;
    display: inline-block;
}

footer p::before, footer p::after {
    content: '•';
    color: var(--primary);
    margin: 0 8px;
    font-weight: bold;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        grid-template-columns: 1fr;
        grid-template-areas: 
            "header"
            "main"
            "sidebar"
            "footer";
    }

    header {
        flex-direction: column;
        text-align: center;
        padding: 24px 16px;
    }

    .header-content {
        text-align: center;
        margin-bottom: 20px;
    }

    header p {
        max-width: 100%;
    }

    section {
        padding: 20px 16px;
    }

    .file-input-container {
        flex-direction: column;
        align-items: flex-start;
    }

    .custom-file-input {
        width: 100%;
        justify-content: center;
    }

    #file-name {
        margin-left: 0;
        margin-top: 12px;
        width: 100%;
        max-width: none;
    }

    .preview-container {
        flex-direction: column;
        padding: 12px;
    }

    .preview {
        width: 100%;
    }

    .icon-preview, .original-preview {
        width: 100px;
        height: 100px;
    }

    .download-options {
        flex-direction: column;
    }

    .download-btn {
        width: 100%;
    }

    .usage-info pre {
        font-size: 0.8rem;
        padding: 12px;
    }
}