@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;900&display=swap');

:root {
    --bg-app: #f3f4f6; 
    --bg-panel: rgba(255, 255, 255, 0.85); 
    --bg-control: #ffffff; 
    --text-primary: #111827; 
    --text-secondary: #6b7280;
    --accent-color: #425AEF; 
    --accent-hover: #364AC9;
    --bubble-bg: rgba(66, 90, 239, 0.08); 
    --border-light: rgba(0, 0, 0, 0.12); 
    --divider-color: rgba(0, 0, 0, 0.18); 
    --border-focus: rgba(37, 99, 235, 0.5);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --blur-amt: 20px;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg-app: #000000;
        --bg-panel: rgba(20, 20, 20, 0.85);
        --bg-control: #1a1a1a;
        --text-primary: #f9fafb;
        --text-secondary: #9ca3af;
        --accent-color: #FF953E;
        --bubble-bg: rgba(255, 149, 62, 0.15); 
        --border-light: rgba(255, 255, 255, 0.18); 
        --divider-color: rgba(255, 255, 255, 0.25); 
        --border-focus: rgba(59, 130, 246, 0.6);
    }
}

html:not(.light-theme) body {
     --bg-app: #050505;
    --bg-panel: rgba(20, 20, 20, 0.8);
    --bg-control: #141414;
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --accent-color: #FF953E; 
    --bubble-bg: rgba(255, 149, 62, 0.15); 
    --border-light: rgba(255, 255, 255, 0.2); 
    --divider-color: rgba(255, 255, 255, 0.3); 
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background-color: var(--bg-app);
    color: var(--text-primary);
    height: 100vh;
    overflow: hidden;
    font-size: 14px;
    font-weight: 400;
}

.app-layout {
    position: relative;
    width: 100vw;
    height: 100vh;
    display: flex;
    overflow: hidden;
}

.container {
    position: static !important;
    display: contents;
}

.app-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    height: 64px;
    background: var(--bg-panel);
    backdrop-filter: blur(var(--blur-amt));
    -webkit-backdrop-filter: blur(var(--blur-amt));
    border-bottom: 1px solid var(--border-light);
    padding: 0 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: auto; 
}

.app-title {
    font-size: 20px;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: var(--text-primary);
    margin: 0;
    display: flex;
    align-items: baseline;
    gap: 12px;
    white-space: nowrap; 
    overflow: hidden;
    text-overflow: ellipsis;
}

.app-title .subtitle {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    letter-spacing: 0.5px;
    opacity: 0.8;
}

.toggle-button {
    position: absolute; 
    right: 30px;
    width: 74px;
    height: 36px;
    z-index: 110;
    visibility: hidden; 
}

html.theme-anim .toggle-button {
    visibility: visible;
}

#themeToggle {
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: 6px;
    overflow: hidden;
    cursor: pointer;
    background: transparent;
    border: none;
    box-shadow: none;
}

#themeToggle:hover {
    transform: none;
    background: transparent;
}

#themeToggle::after {
    content: none; 
}

#themeToggle .btn-bg {
    position: absolute;
    inset: 0;
    background-color: #2a2a2a;
    border-radius: 6px;
    transition: background-color 0.3s ease;
    display: block;
}

html.light-theme #themeToggle .btn-bg {
    background-color: #f3f4f6;
    border: 1px solid #d1d5db;
}

#themeToggle .knob {
    position: absolute;
    inset: 0;
    z-index: 2;
    display: block;
}

#themeToggle .knob::before,
#themeToggle .knob::after {
    position: absolute;
    top: 4px;
    width: 32px; 
    height: 28px; 
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    border-radius: 4px;
    transition: all 0.3s cubic-bezier(0.18, 0.89, 0.35, 1.15);
}

#themeToggle .knob::before {
    content: "深";
    left: 4px;
    background-color: #424242;
    color: #fff;
    opacity: 1;
    transform: scale(1);
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

#themeToggle .knob::after {
    content: "浅";
    right: 4px;
    background-color: #60a5fa;
    color: #fff;
    opacity: 0;
    transform: scale(0.5);
}

html.light-theme #themeToggle .knob::before {
    opacity: 0;
    transform: scale(0.5);
}

html.light-theme #themeToggle .knob::after {
    opacity: 1;
    transform: scale(1);
    background-color: #ffffff;
    color: #2563eb;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.checkbox {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    z-index: 3;
    cursor: pointer;
    margin: 0;
}

.app-footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 90;
    height: auto;
    background: var(--bg-panel);
    backdrop-filter: blur(var(--blur-amt));
    -webkit-backdrop-filter: blur(var(--blur-amt));
    border-top: 1px solid var(--border-light);
    padding: 8px 30px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center; 
    gap: 4px; 
    pointer-events: auto;
}

.footer-top {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
}

.copyright-text {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s;
    opacity: 1;
}

.copyright-text:hover {
    color: var(--accent-color);
}

.stats-text {
    font-size: 11px;
    color: var(--text-secondary);
    background: transparent;
    padding: 0;
    border: none;
    border-radius: 0;
    backdrop-filter: none;
    display: flex;
    gap: 12px;
    position: relative;
}

.stats-text::before {
    content: '';
    position: absolute;
    left: -12px;
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 10px;
    background: var(--border-light);
}

.stats-text span {
    display: flex;
    align-items: center;
    gap: 4px;
}

.stats-text .divider {
    margin: 0;
    color: var(--border-light);
}

.copyright-wrapper {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
}

.copyright-link {
    text-decoration: none;
    cursor: pointer;
    transition: opacity 0.2s;
}

.copyright-link:hover {
    opacity: 0.8;
}

.opensource-link {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-size: 11px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s;
}

.opensource-link:hover {
    color: var(--accent-color);
}

.opensource-link svg {
    flex-shrink: 0;
}

.brand-gradient {
    color: var(--text-secondary);
    font-weight: 600;
    transition: color 0.2s;
}

.copyright-link:hover .brand-gradient {
    color: var(--accent-color);
}

@media (max-width: 1200px) {
    body {
        font-size: 15px;
    }
    
    .app-header {
        height: 56px;
        padding: 0 16px;
    }
    

    .app-title {
        font-size: 18px;
        gap: 8px;
    }

    .toggle-button {
        transform: scale(0.9);
        transform-origin: center right;
        right: 16px;
    }
    
    .app-footer {
        display: flex;
        z-index: 100;
    }
}

@media (max-width: 480px) {
    .app-title {
        font-size: 16px;
    }
    
    .app-title .subtitle {
        font-size: 11px;
        display: inline-block; 
    }
    
    .toggle-button {
        transform: scale(0.8); 
    }

    .app-footer {
        padding: 6px 12px; 
        gap: 2px; 
        font-size: 11px;
    }
    
    .footer-top {
        gap: 12px;
    }
    
    .stat-label {
        display: none;
    }

    .stats-text {
        gap: 6px;
    }
    
    .opensource-link {
        font-size: 10px;
    }
}

.toast-notification {
    position: fixed;
    top: 80px;
    left: 30px; 
    background: var(--bg-panel);
    color: var(--text-primary);
    padding: 12px 20px;
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    font-size: 13px;
    font-weight: 500;
    z-index: 1000;
    display: flex;
    align-items: center;
    gap: 8px;
    backdrop-filter: blur(var(--blur-amt));
    -webkit-backdrop-filter: blur(var(--blur-amt));
    border: 1px solid var(--border-light);
    opacity: 0;
    transform: translateY(-10px);
    transition: all 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
    pointer-events: none;
}

.toast-notification.show {
    opacity: 1;
    transform: translateY(0);
}

.toast-notification svg {
    width: 16px;
    height: 16px;
    color: var(--accent-color);
}

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.modal[style*="display: flex"] {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--bg-panel); 
    padding: 24px; 
    border-radius: 20px;
    box-shadow: 
        0 20px 25px -5px rgba(0, 0, 0, 0.1),
        0 10px 10px -5px rgba(0, 0, 0, 0.04);
    width: 480px; 
    max-width: 90%;
    display: flex;
    flex-direction: column;
    gap: 16px; 
    border: 1px solid var(--border-light);
    animation: modalPop 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    overflow: hidden;
}

html:not(.light-theme) .modal-content {
    background: #18181b; 
    border-color: rgba(255,255,255,0.1);
}

@keyframes modalPop {
    from { opacity: 0; transform: scale(0.9) translateY(20px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-content h3 {
    font-size: 20px; 
    font-weight: 700;
    margin: 0;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.modal-content h3::before {
    content: '';
    display: block;
    width: 5px;
    height: 20px;
    background: var(--accent-color);
    border-radius: 3px;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 0; 
}

.link-box {
    background: transparent;
    padding: 0;
    border: none;
    display: flex;
    flex-direction: column;
    gap: 8px; 
}

.link-box input {
    width: 100%;
    padding: 12px 14px; 
    background: var(--bg-app);
    border: 2px solid transparent; 
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 14px; 
    font-weight: 500; 
    outline: none;
    font-family: 'Menlo', 'Monaco', 'Courier New', monospace;
    transition: all 0.2s ease;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.05);
}

html:not(.light-theme) .link-box input {
    background: #27272a;
}

.link-box input:focus {
    background: var(--bg-panel);
    border-color: var(--accent-color);
    box-shadow: 0 0 0 4px rgba(var(--accent-rgb), 0.15);
}

#uploadStatus {
    margin-top: 0;
    font-size: 13px; 
    font-weight: 500; 
    color: var(--text-secondary);
    line-height: 1.5;
    padding: 10px 14px;
    background: rgba(var(--accent-rgb), 0.05);
    border-radius: 8px;
    border-left: none; 
}

.modal-actions button {
    padding: 10px 20px; 
    border-radius: 10px;
    font-size: 14px; 
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s ease; 
    border: none;
    outline: none;
}

#closeImageLink, #cancelSvgImport {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-light);
}

#closeImageLink:hover, #cancelSvgImport:hover {
    background: var(--bg-app);
    color: var(--text-primary);
}

#copyImageLink, #confirmSvgImport {
    background: var(--accent-color);
    color: #ffffff;
    box-shadow: none; 
}

#copyImageLink:hover, #confirmSvgImport:hover {
    filter: brightness(1.1);
}

#copyImageLink:active, #confirmSvgImport:active {
    filter: brightness(0.9);
}