/**
 * ============================================================================
 * 阿旺电商运营陪练专业系统 - 组件样式文件
 * ============================================================================
 * 按钮、表单、卡片等UI组件样式
 */

/* ==========================================================================
   按钮组件
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    font-size: var(--text-sm);
    font-weight: 500;
    line-height: 1.5;
    text-align: center;
    white-space: nowrap;
    vertical-align: middle;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    user-select: none;
}

.btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(201, 169, 110, 0.25);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* 按钮变体 */
.btn-primary {
    color: var(--text-white);
    background: linear-gradient(135deg, #C9A96E, #B8943F);
    border-color: transparent;
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    color: var(--text-white);
    background: #21262D;
    border-color: rgba(201, 169, 110, 0.3);
}

.btn-secondary:hover:not(:disabled) {
    background: #2D333B;
    border-color: rgba(201, 169, 110, 0.5);
}

.btn-success {
    color: var(--text-white);
    background: var(--success-color);
    border-color: var(--success-color);
}

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

.btn-warning {
    color: var(--gray-900);
    background: var(--warning-color);
    border-color: var(--warning-color);
}

.btn-info {
    color: var(--text-white);
    background: var(--info-color);
    border-color: var(--info-color);
}

.btn-outline {
    color: #C9A96E;
    background: transparent;
    border-color: #C9A96E;
}

.btn-outline:hover:not(:disabled) {
    color: var(--text-white);
    background: #C9A96E;
}

.btn-outline-white {
    color: var(--text-white);
    background: transparent;
    border-color: var(--text-white);
}

.btn-outline-white:hover:not(:disabled) {
    color: #C9A96E;
    background: var(--text-white);
}

.btn-white {
    color: #C9A96E;
    background: var(--text-white);
    border-color: var(--text-white);
}

.btn-white:hover:not(:disabled) {
    background: var(--gray-100);
}

.btn-text {
    color: #C9A96E;
    background: transparent;
    border-color: transparent;
    padding-left: var(--space-2);
    padding-right: var(--space-2);
}

.btn-text:hover:not(:disabled) {
    background: rgba(201, 169, 110, 0.1);
}

/* 按钮尺寸 */
.btn-sm {
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-xs);
}

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

.btn-xl {
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-lg);
}

.btn-block {
    display: flex;
    width: 100%;
}

/* ==========================================================================
   表单组件
   ========================================================================== */
.form-group {
    margin-bottom: var(--space-4);
}

.form-label {
    display: block;
    margin-bottom: var(--space-2);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-primary);
}

.form-input-wrapper {
    position: relative;
}

.form-input {
    width: 100%;
    height: 44px;
    padding: var(--space-3) var(--space-4);
    padding-left: calc(var(--space-4) + 24px);
    font-size: var(--text-sm);
    color: #E6EDF3;
    background: #21262D;
    border: 1px solid rgba(201, 169, 110, 0.15);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.form-input:focus {
    outline: none;
    border-color: #C9A96E;
    box-shadow: 0 0 0 3px rgba(201, 169, 110, 0.1);
}

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

.form-input.error {
    border-color: var(--danger-color);
}

.form-icon {
    position: absolute;
    left: var(--space-4);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: var(--text-base);
}

.password-toggle {
    position: absolute;
    right: var(--space-3);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-1);
}

.password-toggle:hover {
    color: var(--text-secondary);
}

/* 复选框 */
.form-checkbox {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    cursor: pointer;
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.form-checkbox input {
    display: none;
}

.checkmark {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(201, 169, 110, 0.3);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.form-checkbox input:checked + .checkmark {
    background: #C9A96E;
    border-color: #C9A96E;
}

.form-checkbox input:checked + .checkmark::after {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 10px;
    color: var(--text-white);
}

/* 表单选项 */
.form-options {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-5);
}

.forgot-link {
    font-size: var(--text-sm);
    color: #C9A96E;
}

.forgot-link:hover {
    text-decoration: underline;
}

/* ==========================================================================
   卡片组件
   ========================================================================== */
.course-card,
.mentor-card,
.camp-card,
.live-card,
.feature-card {
    background: #161B22;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.course-card:hover,
.mentor-card:hover,
.camp-card:hover,
.live-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* 课程卡片 */
.course-image {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
}

.course-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-base);
}

.course-card:hover .course-image img {
    transform: scale(1.05);
}

.course-badge {
    position: absolute;
    top: var(--space-3);
    left: var(--space-3);
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-xs);
    font-weight: 500;
    color: var(--text-white);
    background: linear-gradient(135deg, #C9A96E, #B8943F);
    border-radius: var(--radius-full);
}

.course-content {
    padding: var(--space-4);
}

.course-title {
    font-size: var(--text-base);
    font-weight: 600;
    color: #E6EDF3;
    margin-bottom: var(--space-2);
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.course-desc {
    font-size: var(--text-sm);
    color: #8B949E;
    margin-bottom: var(--space-3);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.course-meta {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin-bottom: var(--space-3);
    font-size: var(--text-xs);
    color: var(--text-muted);
}

.course-meta i {
    margin-right: var(--space-1);
}

.course-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-3);
    border-top: 1px solid rgba(201, 169, 110, 0.1);
}

.course-price {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.price-current {
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--danger-color);
}

.price-original {
    font-size: var(--text-sm);
    color: var(--text-muted);
    text-decoration: line-through;
}

.price-free {
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--success-color);
}

/* 导师卡片 */
.mentor-card {
    text-align: center;
    padding: var(--space-6);
}

.mentor-header {
    position: relative;
    display: inline-block;
    margin-bottom: var(--space-4);
}

.mentor-avatar {
    width: 100px;
    height: 100px;
    border-radius: var(--radius-full);
    object-fit: cover;
    border: 4px solid #161B22;
    box-shadow: var(--shadow-md);
}

.mentor-badge {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    background: var(--success-color);
    border-radius: var(--radius-full);
    border: 2px solid #161B22;
    font-size: var(--text-sm);
}

.mentor-name {
    font-size: var(--text-lg);
    font-weight: 600;
    color: #E6EDF3;
    margin-bottom: var(--space-1);
}

.mentor-title {
    font-size: var(--text-sm);
    color: var(--text-muted);
    margin-bottom: var(--space-3);
}

.mentor-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    margin-bottom: var(--space-3);
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.mentor-stats i {
    color: var(--warning-color);
    margin-right: var(--space-1);
}

.mentor-bio {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin-bottom: var(--space-4);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.mentor-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-4);
    border-top: 1px solid rgba(201, 169, 110, 0.1);
}

.mentor-price {
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--danger-color);
}

/* ==========================================================================
   认证页面样式
   ========================================================================== */
.auth-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0D1117 0%, #161B22 100%);
    padding: var(--space-6);
}

.auth-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    max-width: 1000px;
    width: 100%;
    background: #161B22;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.auth-card {
    padding: var(--space-10);
}

.auth-header {
    text-align: center;
    margin-bottom: var(--space-8);
}

.auth-logo {
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-6);
}

.auth-logo img {
    width: 48px;
    height: 48px;
}

.auth-logo span {
    font-size: var(--text-xl);
    font-weight: 700;
    background: linear-gradient(135deg, #C9A96E, #D4B87A);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.auth-title {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: #E6EDF3;
    margin-bottom: var(--space-2);
}

.auth-subtitle {
    font-size: var(--text-sm);
    color: #8B949E;
}

.auth-divider {
    position: relative;
    text-align: center;
    margin: var(--space-6) 0;
}

.auth-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--border-color);
}

.auth-divider span {
    position: relative;
    display: inline-block;
    padding: 0 var(--space-4);
    font-size: var(--text-sm);
    color: var(--text-muted);
    background: #161B22;
}

.social-login {
    display: flex;
    justify-content: center;
}

.social-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-size: var(--text-sm);
    color: var(--text-white);
    background: #C9A96E;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

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

.social-btn i {
    font-size: var(--text-lg);
}

.auth-footer {
    text-align: center;
    margin-top: var(--space-6);
    padding-top: var(--space-6);
    border-top: 1px solid var(--border-light);
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.auth-footer a {
    color: #C9A96E;
    font-weight: 500;
}

.auth-footer a:hover {
    text-decoration: underline;
}

.auth-image {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(201, 169, 110, 0.08), rgba(184, 148, 63, 0.08));
    padding: var(--space-10);
}

.auth-image-content {
    color: var(--text-primary);
}

.auth-image-content h2 {
    font-size: var(--text-2xl);
    font-weight: 700;
    margin-bottom: var(--space-4);
    color: #E6EDF3;
}

.auth-image-content p {
    font-size: var(--text-base);
    color: #8B949E;
    margin-bottom: var(--space-6);
}

.auth-features {
    list-style: none;
}

.auth-features li {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
    font-size: var(--text-sm);
    color: #8B949E;
}

.auth-features i {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--success-color);
    background: rgba(16, 185, 129, 0.1);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
}

/* ==========================================================================
   Toast提示组件
   ========================================================================== */
.toast-container {
    position: fixed;
    top: calc(var(--header-height) + var(--space-4));
    right: var(--space-4);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.toast {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-5);
    background: #161B22;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 300px;
    max-width: 400px;
    animation: slideIn 0.3s ease;
}

.toast.success {
    border-left: 4px solid var(--success-color);
}

.toast.error {
    border-left: 4px solid var(--danger-color);
}

.toast.warning {
    border-left: 4px solid var(--warning-color);
}

.toast.info {
    border-left: 4px solid var(--info-color);
}

.toast-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
}

.toast.success .toast-icon {
    color: var(--success-color);
    background: rgba(16, 185, 129, 0.1);
}

.toast.error .toast-icon {
    color: var(--danger-color);
    background: rgba(239, 68, 68, 0.1);
}

.toast.warning .toast-icon {
    color: var(--warning-color);
    background: rgba(245, 158, 11, 0.1);
}

.toast.info .toast-icon {
    color: var(--info-color);
    background: rgba(59, 130, 246, 0.1);
}

.toast-content {
    flex: 1;
}

.toast-title {
    font-size: var(--text-sm);
    font-weight: 600;
    color: #E6EDF3;
    margin-bottom: var(--space-1);
}

.toast-message {
    font-size: var(--text-sm);
    color: #8B949E;
}

.toast-close {
    color: var(--text-muted);
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-1);
}

.toast-close:hover {
    color: var(--text-secondary);
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideOut {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(100%);
        opacity: 0;
    }
}

.toast.hiding {
    animation: slideOut 0.3s ease forwards;
}

/* ==========================================================================
   响应式调整
   ========================================================================== */
@media (max-width: 768px) {
    .auth-container {
        grid-template-columns: 1fr;
    }

    .auth-image {
        display: none;
    }

    .auth-card {
        padding: var(--space-6);
    }

    .toast-container {
        left: var(--space-4);
        right: var(--space-4);
    }

    .toast {
        min-width: auto;
        max-width: none;
    }
}