/* ===== 统一的设计系统 ===== */

/* CSS 变量定义 */
:root {
    /* 基础颜色 */
    --background: 0 0% 100%;
    --foreground: 222.2 84% 4.9%;
    --card: 0 0% 100%;
    --card-foreground: 222.2 84% 4.9%;
    --popover: 0 0% 100%;
    --popover-foreground: 222.2 84% 4.9%;
    --primary: 221.2 83.2% 53.3%;
    --primary-foreground: 210 40% 98%;
    --secondary: 210 40% 96%;
    --secondary-foreground: 222.2 84% 4.9%;
    --muted: 210 40% 96%;
    --muted-foreground: 215.4 16.3% 46.9%;
    --accent: 210 40% 96%;
    --accent-foreground: 222.2 84% 4.9%;
    --destructive: 0 84.2% 60.2%;
    --destructive-foreground: 210 40% 98%;
    --success: 142.1 76.2% 36.3%;
    --success-foreground: 210 40% 98%;
    --warning: 38 92% 50%;
    --warning-foreground: 210 40% 98%;
    --border: 214.3 31.8% 91.4%;
    --input: 214.3 31.8% 91.4%;
    --ring: 221.2 83.2% 53.3%;
    --radius: 0.5rem;

    /* 深色主题颜色 */
    --dark-background: 222.2 84% 4.9%;
    --dark-foreground: 210 40% 98%;
    --dark-card: 222.2 84% 4.9%;
    --dark-card-foreground: 210 40% 98%;
    --dark-popover: 222.2 84% 4.9%;
    --dark-popover-foreground: 210 40% 98%;
    --dark-primary: 217.2 91.2% 59.8%;
    --dark-primary-foreground: 222.2 84% 4.9%;
    --dark-secondary: 217.2 32.6% 17.5%;
    --dark-secondary-foreground: 210 40% 98%;
    --dark-muted: 217.2 32.6% 17.5%;
    --dark-muted-foreground: 215 20.2% 65.1%;
    --dark-accent: 217.2 32.6% 17.5%;
    --dark-accent-foreground: 210 40% 98%;
    --dark-destructive: 0 62.8% 30.6%;
    --dark-destructive-foreground: 210 40% 98%;
    --dark-border: 217.2 32.6% 17.5%;
    --dark-input: 217.2 32.6% 17.5%;
    --dark-ring: 224.3 76.3% 94.1%;

    /* 自定义颜色 */
    --gold: 45 100% 51%;
    --silver: 0 0% 75%;
    --bronze: 25 50% 55%;
}

/* 深色主题 */
.dark {
    --background: var(--dark-background);
    --foreground: var(--dark-foreground);
    --card: var(--dark-card);
    --card-foreground: var(--dark-card-foreground);
    --popover: var(--dark-popover);
    --popover-foreground: var(--dark-popover-foreground);
    --primary: var(--dark-primary);
    --primary-foreground: var(--dark-primary-foreground);
    --secondary: var(--dark-secondary);
    --secondary-foreground: var(--dark-secondary-foreground);
    --muted: var(--dark-muted);
    --muted-foreground: var(--dark-muted-foreground);
    --accent: var(--dark-accent);
    --accent-foreground: var(--dark-accent-foreground);
    --destructive: var(--dark-destructive);
    --destructive-foreground: var(--dark-destructive-foreground);
    --border: var(--dark-border);
    --input: var(--dark-input);
    --ring: var(--dark-ring);
}

/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
    background-color: hsl(var(--background));
    color: hsl(var(--foreground));
    line-height: 1.6;
    min-height: 100vh;
}

/* ===== 通用组件样式 ===== */

/* 卡片组件 */
.card {
    background-color: hsl(var(--card));
    border: 1px solid hsl(var(--border));
    border-radius: var(--radius);
    box-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    transition: all 0.2s ease-in-out;
}

.card:hover {
    box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
}

.card-header {
    padding: 1.5rem 1.5rem 0;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: hsl(var(--foreground));
    margin-bottom: 0.5rem;
}

.card-subtitle {
    color: hsl(var(--muted-foreground));
    font-size: 0.875rem;
}

.card-content {
    padding: 1.5rem;
}

.card-footer {
    padding: 0 1.5rem 1.5rem;
}

/* 按钮组件 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.75rem 1rem;
    transition: all 0.2s ease-in-out;
    cursor: pointer;
    border: none;
    text-decoration: none;
    min-height: 2.75rem;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn:disabled:hover {
    transform: none;
}

.btn-primary {
    background-color: hsl(var(--primary));
    color: hsl(var(--primary-foreground));
}

.btn-primary:hover:not(:disabled) {
    background-color: hsl(var(--primary) / 0.9);
}

.btn-primary:active:not(:disabled) {
    transform: translateY(1px);
}

.btn-secondary {
    background-color: hsl(var(--secondary));
    color: hsl(var(--secondary-foreground));
}

.btn-secondary:hover:not(:disabled) {
    background-color: hsl(var(--secondary) / 0.8);
}

.btn-outline {
    background-color: transparent;
    color: hsl(var(--foreground));
    border: 1px solid hsl(var(--border));
}

.btn-outline:hover:not(:disabled) {
    background-color: hsl(var(--accent));
    color: hsl(var(--accent-foreground));
}

.btn-ghost {
    background-color: transparent;
    color: hsl(var(--foreground));
}

.btn-ghost:hover:not(:disabled) {
    background-color: hsl(var(--accent));
    color: hsl(var(--accent-foreground));
}

.btn-destructive {
    background-color: hsl(var(--destructive));
    color: hsl(var(--destructive-foreground));
}

.btn-destructive:hover:not(:disabled) {
    background-color: hsl(var(--destructive) / 0.9);
}

/* 按钮尺寸变体 */
.btn-sm {
    padding: 0.5rem 0.75rem;
    font-size: 0.75rem;
    min-height: 2rem;
}

.btn-lg {
    padding: 1rem 1.5rem;
    font-size: 1rem;
    min-height: 3rem;
}

.btn-full {
    width: 100%;
}

/* 表单组件 */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: hsl(var(--foreground));
    margin-bottom: 0.5rem;
}

.form-input {
    width: 100%;
    padding: 0.75rem;
    padding-left: 2.5rem;
    background-color: hsl(var(--background));
    border: 1px solid hsl(var(--input));
    border-radius: var(--radius);
    color: hsl(var(--foreground));
    font-size: 0.875rem;
    transition: all 0.2s ease-in-out;
    min-height: 2.75rem;
}

.form-input:focus {
    outline: none;
    border-color: hsl(var(--ring));
    box-shadow: 0 0 0 2px hsl(var(--ring) / 0.2);
}

.form-input::placeholder {
    color: hsl(var(--muted-foreground));
}

.form-input:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.input-wrapper {
    position: relative;
}

.input-icon {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: hsl(var(--muted-foreground));
    font-size: 0.875rem;
}

/* 选择框样式 */
.form-select {
    width: 100%;
    padding: 0.75rem;
    padding-left: 2.5rem;
    background-color: hsl(var(--background));
    border: 1px solid hsl(var(--input));
    border-radius: var(--radius);
    color: hsl(var(--foreground));
    font-size: 0.875rem;
    transition: all 0.2s ease-in-out;
    min-height: 2.75rem;
    cursor: pointer;
}

.form-select:focus {
    outline: none;
    border-color: hsl(var(--ring));
    box-shadow: 0 0 0 2px hsl(var(--ring) / 0.2);
}

/* 单选框和复选框样式 */
.form-radio,
.form-checkbox {
    display: none;
}

.form-radio + label,
.form-checkbox + label {
    display: inline-flex;
    align-items: center;
    cursor: pointer;
    font-size: 0.875rem;
    color: hsl(var(--foreground));
}

.form-radio + label::before,
.form-checkbox + label::before {
    content: '';
    width: 1.25rem;
    height: 1.25rem;
    border: 1px solid hsl(var(--border));
    border-radius: 50%;
    margin-right: 0.5rem;
    transition: all 0.2s ease-in-out;
    background-color: hsl(var(--background));
}

.form-checkbox + label::before {
    border-radius: var(--radius);
}

.form-radio:checked + label::before {
    background-color: hsl(var(--primary));
    border-color: hsl(var(--primary));
    box-shadow: inset 0 0 0 3px hsl(var(--background));
}

.form-checkbox:checked + label::before {
    background-color: hsl(var(--primary));
    border-color: hsl(var(--primary));
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 16 16'%3e%3cpath d='M12.207 4.793a1 1 0 010 1.414l-5 5a1 1 0 01-1.414 0l-2-2a1 1 0 011.414-1.414L6.5 9.086l4.293-4.293a1 1 0 011.414 0z' fill='%23fff'/%3e%3c/svg%3e");
}

/* 消息提示组件 */
.message {
    padding: 0.75rem;
    border-radius: var(--radius);
    font-size: 0.875rem;
    display: none;
    border: 1px solid transparent;
}

.message.show {
    display: block;
    animation: slideIn 0.2s ease-out;
}

.message.error {
    color: hsl(var(--destructive));
    background-color: hsl(var(--destructive) / 0.1);
    border-color: hsl(var(--destructive) / 0.2);
}

.message.success {
    color: hsl(var(--success));
    background-color: hsl(var(--success) / 0.1);
    border-color: hsl(var(--success) / 0.2);
}

.message.warning {
    color: hsl(var(--warning));
    background-color: hsl(var(--warning) / 0.1);
    border-color: hsl(var(--warning) / 0.2);
}

/* 加载动画 */
.loading-spinner {
    width: 1rem;
    height: 1rem;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    display: none;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.loading .loading-spinner {
    display: inline-block;
}

.loading .btn-text {
    display: none;
}

/* 动画效果 */
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-0.5rem);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* 工具类 */
.transition {
    transition: all 0.2s ease-in-out;
}

.transition-slow {
    transition: all 0.3s ease-in-out;
}

.rounded {
    border-radius: var(--radius);
}

.rounded-lg {
    border-radius: calc(var(--radius) * 2);
}

.rounded-xl {
    border-radius: calc(var(--radius) * 3);
}

.shadow {
    box-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
}

.shadow-lg {
    box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

.shadow-xl {
    box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

/* 响应式工具类 */
@media (max-width: 640px) {
    .btn {
        padding: 0.875rem 1rem;
        font-size: 1rem;
        min-height: 3rem;
    }

    .form-input,
    .form-select {
        font-size: 1rem;
        min-height: 3rem;
    }
}

/* 深色模式自动检测 */
@media (prefers-color-scheme: dark) {
    :root {
        --background: var(--dark-background);
        --foreground: var(--dark-foreground);
        --card: var(--dark-card);
        --card-foreground: var(--dark-card-foreground);
        --popover: var(--dark-popover);
        --popover-foreground: var(--dark-popover-foreground);
        --primary: var(--dark-primary);
        --primary-foreground: var(--dark-primary-foreground);
        --secondary: var(--dark-secondary);
        --secondary-foreground: var(--dark-secondary-foreground);
        --muted: var(--dark-muted);
        --muted-foreground: var(--dark-muted-foreground);
        --accent: var(--dark-accent);
        --accent-foreground: var(--dark-accent-foreground);
        --destructive: var(--dark-destructive);
        --destructive-foreground: var(--dark-destructive-foreground);
        --border: var(--dark-border);
        --input: var(--dark-input);
        --ring: var(--dark-ring);
    }
}