@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&family=Noto+Sans+SC:wght@300;400;500;700&display=swap');

:root {
    /* Light Theme Colors */
    --primary-color: #3366ff;
    --primary-gradient: linear-gradient(135deg, #3366ff 0%, #5e83ff 100%);
    --secondary-color: #5e83ff;
    --accent-color: #ff6b6b;
    --background-color: #f8faff;
    --card-bg-color: #ffffff;
    --text-primary: #2c3e50;
    --text-secondary: #5a6b7b;
    --text-tertiary: #8a9baf;
    --border-color: rgba(0, 0, 0, 0.08);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 5px 15px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.2);
    --success-color: #4caf50;
    --warning-color: #ff9800;
    --error-color: #f44336;
    
    /* Typography */
    --font-family-en: 'Poppins', sans-serif;
    --font-family-cn: 'Noto Sans SC', sans-serif;
    --font-family: var(--font-family-en), var(--font-family-cn);
    
    /* Animation */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
    --transition-slow: 0.4s ease;
    
    /* Layout */
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 20px;
    --container-width: 800px;
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
}

[data-theme="dark"] {
    --primary-color: #5e83ff;
    --primary-gradient: linear-gradient(135deg, #3366ff 0%, #5e83ff 100%);
    --secondary-color: #3366ff;
    --accent-color: #ff7b7b;
    --background-color: #121826;
    --card-bg-color: #1c2333;
    --text-primary: #e6eaf0;
    --text-secondary: #a9b8cc;
    --text-tertiary: #7c8ba1;
    --border-color: rgba(255, 255, 255, 0.08);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 5px 15px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.4);
    --glass-bg: rgba(28, 35, 51, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    overflow: hidden;
}

body {
    font-family: var(--font-family);
    background-color: var(--background-color);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    transition: background-color var(--transition-normal);
    display: flex;
    flex-direction: column;
    opacity: 0;
    animation: fadeIn 0.6s ease forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Header Styles */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
}

.logo {
    display: flex;
    align-items: center;
    font-weight: 700;
    font-size: 1.8rem;
    color: var(--primary-color);
    text-decoration: none;
}

.logo-icon {
    background: var(--primary-gradient);
    border-radius: 50%;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: var(--spacing-sm);
    color: white;
}

.actions {
    display: flex;
    gap: var(--spacing-md);
}

.theme-toggle, .language-toggle, .settings-toggle {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
}

.theme-toggle:hover, .language-toggle:hover, .settings-toggle:hover {
    background-color: var(--border-color);
    color: var(--text-primary);
}

/* Main Container */
.container {
    max-width: var(--container-width);
    margin: var(--spacing-lg) auto;
    padding: 0 var(--spacing-lg);
    flex: 1;
}

/* Cards & Panels */
.card {
    background-color: var(--card-bg-color);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

.tab-container {
    margin-bottom: var(--spacing-lg);
    max-width: 100%;
}

.tab-header {
    display: flex;
    background-color: var(--card-bg-color);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    margin-bottom: var(--spacing-md); /* 添加下边距，与内容分开 */
}

.tab-btn {
    flex: 1;
    padding: var(--spacing-md);
    border: none;
    background-color: transparent;
    color: var(--text-secondary);
    font-family: var(--font-family);
    font-weight: 500;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

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

.tab-btn.active {
    color: var(--primary-color);
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--primary-gradient);
    animation: slideIn 0.3s ease forwards;
}

@keyframes slideIn {
    from { transform: translateX(-100%); }
    to { transform: translateX(0); }
}

.tab-content {
    display: none;
    opacity: 0;
    transform: translateY(10px);
    margin-top: var(--spacing-md);
    border-radius: var(--border-radius-md);
    min-height: 300px; /* 添加最小高度防止标签页高度骤变 */
    transition: opacity var(--transition-normal) transform var(--transition-normal) box-shadow var(--transition-normal);
    min-width: 410px;
}

.tab-content.active {
    display: block;
    animation: fadeInUp 0.4s ease forwards;
}

@keyframes fadeInUp {
    from { 
        opacity: 0; 
        transform: translateY(10px);
    }
    to { 
        opacity: 1;
        transform: translateY(0);
    }
}

/* Upload Zone */
.upload-zone {
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    transition: all var(--transition-normal);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.upload-zone:hover {
    border-color: var(--primary-color);
    background-color: rgba(94, 131, 255, 0.05);
}

.upload-zone.dragover {
    border-color: var(--primary-color);
    background-color: rgba(94, 131, 255, 0.08);
    transform: scale(1.01);
}

.upload-icon {
    background: var(--primary-gradient);
    width: 64px;
    height: 64px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-md);
    color: white;
    font-size: 1.5rem;
}

.upload-icon i {
    font-size: 1.8rem;
}

.upload-text {
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.upload-subtext {
    color: var(--text-tertiary);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-md);
}

.file-input {
    position: inherit;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    opacity: 0;
    cursor: pointer;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--border-radius-md);
    font-family: var(--font-family);
    font-weight: 500;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    gap: var(--spacing-sm);
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: 0 4px 10px rgba(94, 131, 255, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 6px 15px rgba(94, 131, 255, 0.4);
    transform: translateY(-2px);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 2px 5px rgba(94, 131, 255, 0.3);
}

.btn-full {
    width: 100%;
}

/* Input Styles */
.input-group {
    margin-bottom: var(--spacing-lg);
}

.input {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    font-family: var(--font-family);
    font-size: 1rem;
    color: var(--text-primary);
    background-color: var(--card-bg-color);
    transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(94, 131, 255, 0.15);
}

.input-code {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: 0.5rem;
}

/* Status Messages */
.status {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    text-align: center;
}

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

.status-success {
    color: var(--success-color);
}

.status-error {
    color: var(--error-color);
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    -webkit-backdrop-filter: blur(5px);
    backdrop-filter: blur(5px);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.modal.show {
    opacity: 1;
}

.modal-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    background: var(--background-color);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    text-align: center;
    max-width: 90%;
    width: 400px;
    transition: transform var(--transition-normal);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.modal.show .modal-content {
    transform: translate(-50%, -50%) scale(1);
}

.modal-title {
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.close-modal {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: none;
    border: none;
    color: var(--text-tertiary);
    font-size: 1.5rem;
    cursor: pointer;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all var(--transition-normal);
}

.close-modal:hover {
    background-color: var(--border-color);
    color: var(--text-primary);
}

/* Progress Circle */
.progress-container {
    position: relative;
    width: 120px;
    height: 120px;
    margin: var(--spacing-lg) auto;
}

.progress-ring-bg, .progress-ring-fill {
    fill: none;
    stroke-width: 8;
    stroke-linecap: round;
}

.progress-ring-bg {
    stroke: rgba(94, 131, 255, 0.2);
}

.progress-ring-fill {
    stroke: var(--primary-color);
    stroke-dasharray: 339.292;
    stroke-dashoffset: 339.292;
    transform: rotate(-90deg);
    transform-origin: center;
    transition: stroke-dashoffset var(--transition-normal);
}

.progress-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
}

/* Code Display */
.code-display {
    font-family: 'Courier New', monospace;
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--primary-color);
    margin: var(--spacing-lg) 0;
    letter-spacing: 0.5rem;
    text-align: center;
    background: rgba(94, 131, 255, 0.1);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    user-select: all;
}

/* File Info Card */
.file-info-card {
    background-color: var(--card-bg-color);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-md);
    margin-top: var(--spacing-lg);
}

.file-info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-color);
}

.file-info-row:last-child {
    border-bottom: none;
}

.file-info-label {
    color: var(--text-tertiary);
    font-weight: 500;
}

.file-info-value {
    color: var(--text-primary);
    font-weight: 500;
}

/* Download Button */
.download-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-top: var(--spacing-lg);
    background: var(--primary-gradient);
    color: white;
    text-decoration: none;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--border-radius-md);
    font-weight: 500;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 10px rgba(94, 131, 255, 0.3);
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(94, 131, 255, 0.4);
}

/* Footer */
.footer {
    text-align: center;
    padding: var(--spacing-lg);
    color: var(--text-tertiary);
    font-size: 0.9rem;
}

/* Transitions & Animations */
@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

.pulse {
    animation: pulse 2s infinite;
}

/* Responsive Styles */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .upload-icon {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
    
    .tab-btn {
        padding: var(--spacing-sm);
        font-size: 0.9rem;
    }
    
    .upload-zone {
        padding: var(--spacing-lg);
    }
    
    .code-display {
        font-size: 2rem;
        letter-spacing: 0.3rem;
    }
}

/* Utilities */
.text-center {
    text-align: center;
}

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.fade-enter {
    opacity: 0;
}
.fade-enter-active {
    opacity: 1;
    transition: opacity var(--transition-normal);
}
.fade-exit {
    opacity: 1;
}
.fade-exit-active {
    opacity: 0;
    transition: opacity var(--transition-normal);
}

/* General Link Styles */
a {
    color: var(--primary-color);
    text-decoration: none;
    position: relative;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--secondary-color);
}

a:not(.btn):not(.logo):not(.download-btn)::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 1px;
    bottom: -1px;
    left: 0;
    background-color: var(--secondary-color);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
    transform-origin: bottom right;
}

a:not(.btn):not(.logo):not(.download-btn):hover::after {
    transform: scaleX(1);
    transform-origin: bottom left;
}

a:focus {
    outline: none;
    box-shadow: 0 0 0 2px rgba(94, 131, 255, 0.3);
}
/* Token Input Styles */
.input-token {
    text-align: center;
    font-size: 1.2rem;
    letter-spacing: 2px;
    font-weight: 500;
}

#tokenError {
    display: none;
    font-size: 0.9rem;
}

#tokenError.show {
    display: block;
    animation: shake 0.5s cubic-bezier(0.36, 0.07, 0.19, 0.97) both;
}

@keyframes shake {
    10%, 90% {
        transform: translate3d(-1px, 0, 0);
    }
    
    20%, 80% {
        transform: translate3d(2px, 0, 0);
    }
    
    30%, 50%, 70% {
        transform: translate3d(-4px, 0, 0);
    }
    
    40%, 60% {
        transform: translate3d(4px, 0, 0);
    }
}