/* 通用样式组件 - 适用于整个网站 */

/* Bootstrap 兼容样式 */
.form-control {
    display: block;
    width: 100%;
    padding: var(--spacing-3);
    font-size: var(--font-size-base);
    line-height: 1.5;
    color: var(--neutral-text-primary);
    background-color: var(--primary-surface);
    background-clip: padding-box;
    border: 1px solid var(--neutral-border);
    border-radius: var(--border-radius-md);
    transition: border-color var(--transition-duration-fast) ease-in-out,
                box-shadow var(--transition-duration-fast) ease-in-out;
}

.form-control:focus {
    border-color: var(--primary-brand);
    outline: 0;
    box-shadow: 0 0 0 3px rgba(52, 144, 220, 0.25);
}

.form-floating {
    position: relative;
}

.form-floating > .form-control {
    height: calc(3.5rem + 2px);
    padding: 1rem 0.75rem;
}

.form-floating > label {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    padding: 1rem 0.75rem;
    pointer-events: none;
    border: 1px solid transparent;
    transform-origin: 0 0;
    transition: opacity 0.1s ease-in-out, transform 0.1s ease-in-out;
    color: var(--neutral-text-secondary);
}

.form-floating > .form-control:focus ~ label,
.form-floating > .form-control:not(:placeholder-shown) ~ label {
    opacity: 0.65;
    transform: scale(0.85) translateY(-0.5rem) translateX(0.15rem);
}

.spinner-border {
    display: inline-block;
    width: 1rem;
    height: 1rem;
    vertical-align: text-bottom;
    border: 0.2em solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    animation: spinner-border 0.75s linear infinite;
}

.spinner-border-sm {
    width: 1rem;
    height: 1rem;
    border-width: 0.2em;
}

@keyframes spinner-border {
    to { transform: rotate(360deg); }
}

.d-none {
    display: none !important;
}

.text-danger {
    color: var(--accent-danger) !important;
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-5);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    text-align: center;
    text-decoration: none;
    white-space: nowrap;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: all var(--transition-duration-fast) var(--transition-timing-function);
    user-select: none;
    border: none;
}

.btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(52, 144, 220, 0.3);
}

.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2);
    font-size: var(--font-size-lg);
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: all var(--transition-duration-fast) var(--transition-timing-function);
    user-select: none;
    border: none;
}

.btn-icon:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(52, 144, 220, 0.3);
}

/* 按钮变体 */
.btn-primary {
    background: var(--gradient-blue-green);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-brand);
    border: var(--border-width-default) solid var(--primary-brand);
}

.btn-secondary:hover {
    background-color: rgba(52, 144, 220, 0.05);
    transform: translateY(-2px);
}

.btn-secondary:active {
    transform: translateY(0);
}

.btn-tertiary {
    background-color: transparent;
    color: var(--neutral-text-secondary);
}

.btn-tertiary:hover {
    color: var(--neutral-text-primary);
    background-color: rgba(0, 0, 0, 0.03);
}

.btn-success {
    background-color: var(--accent-emerald);
    color: white;
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    background-color: color-mix(in srgb, var(--accent-emerald), black 5%);
}

.btn-danger {
    background-color: var(--accent-danger);
    color: white;
}

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    background-color: color-mix(in srgb, var(--accent-danger), black 5%);
}

.btn-sm {
    padding: var(--spacing-1) var(--spacing-3);
    font-size: var(--font-size-sm);
}

.btn-lg {
    padding: var(--spacing-3) var(--spacing-6);
    font-size: var(--font-size-lg);
}

.btn-full {
    width: 100%;
}

.btn-disabled,
.btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    pointer-events: none;
}

/* 卡片组件 */
.card {
    background-color: var(--primary-surface);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: all var(--transition-duration-default) var(--transition-timing-function);
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.card-header {
    padding: var(--spacing-5) var(--spacing-6);
    border-bottom: 1px solid var(--neutral-border);
    background-color: rgba(240, 249, 255, 0.5);
}

.card-title {
    margin: 0;
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--neutral-text-primary);
}

.card-subtitle {
    margin-top: var(--spacing-2);
    color: var(--neutral-text-secondary);
}

.card-body {
    padding: var(--spacing-6);
}

.card-footer {
    padding: var(--spacing-4) var(--spacing-6);
    border-top: 1px solid var(--neutral-border);
    background-color: rgba(240, 249, 255, 0.2);
}

/* 标签组件 */
.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-1) var(--spacing-3);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    color: white;
    border-radius: var(--border-radius-full);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-primary {
    background-color: var(--primary-brand);
}

.badge-success {
    background-color: var(--accent-emerald);
}

.badge-warning {
    background-color: var(--accent-warning);
    color: var(--neutral-text-primary);
}

.badge-danger {
    background-color: var(--accent-danger);
}

.badge-info {
    background-color: var(--accent-info);
}

.badge-neutral {
    background-color: var(--neutral-text-tertiary);
}

/* 表单控件 */
.form-group {
    margin-bottom: var(--spacing-5);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-2);
    font-weight: var(--font-weight-medium);
    color: var(--neutral-text-primary);
}

.form-input,
.form-select,
.form-textarea {
    display: block;
    width: 100%;
    padding: var(--spacing-3);
    font-size: var(--font-size-base);
    line-height: 1.5;
    color: var(--neutral-text-primary);
    background-color: var(--primary-surface);
    background-clip: padding-box;
    border: 1px solid var(--neutral-border);
    border-radius: var(--border-radius-md);
    transition: border-color var(--transition-duration-fast) ease-in-out, 
                box-shadow var(--transition-duration-fast) ease-in-out;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: var(--primary-brand);
    outline: 0;
    box-shadow: 0 0 0 3px rgba(52, 144, 220, 0.25);
}

.form-textarea {
    min-height: 100px;
    resize: vertical;
}

.form-helper {
    margin-top: var(--spacing-1);
    font-size: var(--font-size-sm);
    color: var(--neutral-text-tertiary);
}

.form-error {
    margin-top: var(--spacing-1);
    font-size: var(--font-size-sm);
    color: var(--accent-danger);
}

/* 复选框和单选按钮 */
.form-check {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-3);
    cursor: pointer;
}

.form-check-input {
    appearance: none;
    width: 1.2em;
    height: 1.2em;
    border: 1px solid var(--neutral-text-tertiary);
    background-color: var(--primary-surface);
    cursor: pointer;
    transition: all var(--transition-duration-fast) var(--transition-timing-function);
}

.form-check-input:checked {
    background-color: var(--primary-brand);
    border-color: var(--primary-brand);
}

.form-check-input:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(52, 144, 220, 0.25);
}

.form-check-input[type="checkbox"] {
    border-radius: var(--border-radius-sm);
}

.form-check-input[type="checkbox"]:checked {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23ffffff' stroke-linecap='round' stroke-linejoin='round' stroke-width='3' d='M4 8.5L6.5 11L12 5'/%3e%3c/svg%3e");
    background-position: center;
    background-repeat: no-repeat;
    background-size: 60%;
}

.form-check-input[type="radio"] {
    border-radius: 50%;
}

.form-check-input[type="radio"]:checked {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3ccircle r='4' fill='%23ffffff' cx='8' cy='8'/%3e%3c/svg%3e");
    background-position: center;
    background-repeat: no-repeat;
    background-size: 60%;
}

.form-check-label {
    font-size: var(--font-size-base);
    color: var(--neutral-text-primary);
}

/* 警告框组件 */
.alert {
    padding: var(--spacing-4) var(--spacing-5);
    margin-bottom: var(--spacing-5);
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
}

.alert-icon {
    flex-shrink: 0;
    font-size: var(--font-size-xl);
}

.alert-content {
    flex-grow: 1;
}

.alert-title {
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-1);
}

.alert-message {
    margin: 0;
}

.alert-success {
    background-color: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.2);
    color: var(--accent-emerald);
}

.alert-warning {
    background-color: rgba(251, 191, 36, 0.1);
    border: 1px solid rgba(251, 191, 36, 0.2);
    color: var(--accent-warning);
}

.alert-danger {
    background-color: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: var(--accent-danger);
}

.alert-info {
    background-color: rgba(96, 165, 250, 0.1);
    border: 1px solid rgba(96, 165, 250, 0.2);
    color: var(--accent-info);
}

/* 分割线 */
.divider {
    height: 1px;
    background-color: var(--neutral-border);
    margin: var(--spacing-6) 0;
}

.divider-text {
    display: flex;
    align-items: center;
    text-align: center;
    margin: var(--spacing-6) 0;
    color: var(--neutral-text-tertiary);
    font-size: var(--font-size-sm);
}

.divider-text::before,
.divider-text::after {
    content: "";
    flex: 1;
    height: 1px;
    background-color: var(--neutral-border);
}

.divider-text::before {
    margin-right: var(--spacing-4);
}

.divider-text::after {
    margin-left: var(--spacing-4);
}

/* 骨架屏加载状态 */
.skeleton {
    background: linear-gradient(
        90deg,
        rgba(226, 232, 240, 0.6) 25%,
        rgba(226, 232, 240, 0.9) 50%,
        rgba(226, 232, 240, 0.6) 75%
    );
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: var(--border-radius-md);
}

@keyframes skeleton-loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* 工具类 */
.text-center {
    text-align: center;
}

.text-right {
    text-align: right;
}

.text-left {
    text-align: left;
}

.flex {
    display: flex;
}

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

.flex-row {
    flex-direction: row;
}

.items-center {
    align-items: center;
}

.items-start {
    align-items: flex-start;
}

.items-end {
    align-items: flex-end;
}

.justify-center {
    justify-content: center;
}

.justify-between {
    justify-content: space-between;
}

.justify-start {
    justify-content: flex-start;
}

.justify-end {
    justify-content: flex-end;
}

.gap-1 {
    gap: var(--spacing-1);
}

.gap-2 {
    gap: var(--spacing-2);
}

.gap-3 {
    gap: var(--spacing-3);
}

.gap-4 {
    gap: var(--spacing-4);
}

.gap-5 {
    gap: var(--spacing-5);
}

.gap-6 {
    gap: var(--spacing-6);
}

.w-full {
    width: 100%;
}

.h-full {
    height: 100%;
}

.mt-1 { margin-top: var(--spacing-1); }
.mt-2 { margin-top: var(--spacing-2); }
.mt-3 { margin-top: var(--spacing-3); }
.mt-4 { margin-top: var(--spacing-4); }
.mt-5 { margin-top: var(--spacing-5); }
.mt-6 { margin-top: var(--spacing-6); }
.mt-8 { margin-top: var(--spacing-8); }
.mt-10 { margin-top: var(--spacing-10); }
.mt-12 { margin-top: var(--spacing-12); }

.mb-1 { margin-bottom: var(--spacing-1); }
.mb-2 { margin-bottom: var(--spacing-2); }
.mb-3 { margin-bottom: var(--spacing-3); }
.mb-4 { margin-bottom: var(--spacing-4); }
.mb-5 { margin-bottom: var(--spacing-5); }
.mb-6 { margin-bottom: var(--spacing-6); }
.mb-8 { margin-bottom: var(--spacing-8); }
.mb-10 { margin-bottom: var(--spacing-10); }
.mb-12 { margin-bottom: var(--spacing-12); }

.mx-auto {
    margin-left: auto;
    margin-right: auto;
}

.hidden {
    display: none !important;
    opacity: 0 !important;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* 响应式容器 */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
}

/* 响应式工具类 */
@media (min-width: 768px) {
    .md\:flex {
        display: flex;
    }
    
    .md\:hidden {
        display: none;
    }
}