/*
Theme Name: EduMaster Pro
Description: Ultra-Premium Education & AI Lab Theme - 全面升级版
Author: Antigravity
Version: 4.0
*/

/* --- EduMaster Ultimate Polish --- */
:root {
    --primary: #2563eb;
    --primary-light: #60a5fa;
    --secondary: #00e3fd;
    --primary-glow: rgba(37, 99, 235, 0.2);
    --slate-900: #0f172a;
    --slate-500: #64748b;
    --blue-50: #f8fafc;
}

/* Custom Premium Scrollbar */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: #f8fafc; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 10px; border: 2px solid #f8fafc; }
::-webkit-scrollbar-thumb:hover { background: #2563eb; }

/* Smooth Global Animations */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

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

.animate-fade-in-up { animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards; }
.animate-scale-in { animation: scaleIn 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards; }

/* Prose Refinement */
.prose p { line-height: 1.8; margin-bottom: 1.5em; }
.prose h2, .prose h3 { margin-top: 2em; margin-bottom: 1em; }

/* Glassmorphism Utilities */
.glass-panel { background: rgba(255, 255, 255, 0.7); backdrop-filter: blur(12px); border: 1px solid rgba(255, 255, 255, 0.3); }

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--blue-50);
    color: var(--slate-900);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* 2. Premium Animations */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(40px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInRight {
    from { opacity: 0; transform: translateX(60px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0); }
    50% { transform: translateY(-20px) rotate(2deg); }
}

@keyframes progress {
    from { width: 0; }
    to { width: 100%; }
}

@keyframes pulse-slow {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 0.6; }
}

.animate-fade-in-up { animation: fadeInUp 1s cubic-bezier(0.16, 1, 0.3, 1) forwards; }
.animate-fade-in-right { animation: fadeInRight 1.2s cubic-bezier(0.16, 1, 0.3, 1) forwards; }
.animate-float { animation: float 8s ease-in-out infinite; }
.animate-pulse-slow { animation: pulse-slow 4s ease-in-out infinite; }

/* 3. Layout Utilities */
.perspective-1000 { perspective: 1000px; }
.rotate-y--10 { transform: rotateY(-10deg); }
.rotate-x-5 { transform: rotateX(5deg); }

/* 4. Glassmorphism */
.glass-panel {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

/* 5. Custom Scrollbar */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--blue-50); }
::-webkit-scrollbar-thumb { 
    background: #cbd5e1; 
    border-radius: 20px; 
    border: 3px solid var(--blue-50);
}
::-webkit-scrollbar-thumb:hover { background: #94a3b8; }

/* 6. Typography Refinements */
h1, h2, h3, h4 {
    letter-spacing: -0.04em;
    font-weight: 1000;
}

.tracking-widest-plus {
    letter-spacing: 0.4em;
}

/* 7. Tab Interaction */
.tab-trigger.active {
    background: #fff;
    color: var(--primary) !important;
    box-shadow: 0 10px 25px rgba(0,0,0,0.05);
}

.tab-content.hidden { display: none; }
.tab-content.block { display: block; animation: fadeInUp 0.5s ease-out; }

/* 8. Responsive Fixes */
@media (max-width: 768px) {
    .text-9xl { font-size: 5rem; }
    .text-7xl { font-size: 3.5rem; }
}

/* 9. AI Premium UI Overrides - Force Premium Theme */
[class*="ai-"][class*="-container"],
.ai-generate-container,
.ai-search-container,
.ai-summarize-container {
    margin: 40px 0 !important;
    padding: 40px !important;
    background: #ffffff !important;
    border-radius: 2.5rem !important;
    border: 1px solid #e2e8f0 !important;
    box-shadow: 0 20px 50px rgba(0,0,0,0.03) !important;
}

[class*="ai-"][class*="-container"] h3 {
    margin-bottom: 30px !important;
    font-size: 24px !important;
    font-weight: 1000 !important;
    color: #0f172a !important;
    display: flex !important;
    align-items: center !important;
    gap: 12px !important;
}

.form-group label {
    font-size: 11px !important;
    font-weight: 900 !important;
    color: #64748b !important;
    text-transform: uppercase !important;
    letter-spacing: 0.1em !important;
}

.form-group textarea, 
.form-group input, 
.form-group select {
    padding: 16px 20px !important;
    background: #f8fafc !important;
    border: 1px solid #e2e8f0 !important;
    border-radius: 1.25rem !important;
}

[class*="ai-"][class*="-button"] {
    background: #0f172a !important;
    color: white !important;
    padding: 18px 32px !important;
    border-radius: 1.25rem !important;
    font-weight: 900 !important;
    text-transform: uppercase !important;
    letter-spacing: 0.1em !important;
    transition: all 0.3s !important;
}

[class*="ai-"][class*="-button"]:hover {
    background: #2563eb !important;
    transform: translateY(-2px) !important;
}

[class*="ai-"][class*="-results"],
.ai-generated-content {
    background: #f0f9ff !important;
    border: 1px solid #bae6fd !important;
    padding: 30px !important;
    border-radius: 2rem !important;
    color: #0c4a6e !important;
}

/* ================================
   EduMaster Pro 增强样式
   ================================ */

/* 用户中心样式 */
.user-profile-card {
    background: #fff;
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}
.user-profile-card .profile-header {
    text-align: center;
    margin-bottom: 20px;
}
.user-profile-card .avatar img {
    border-radius: 50%;
    border: 3px solid var(--primary);
}
.user-profile-card .user-level {
    display: inline-block;
    background: linear-gradient(135deg, #2563eb, #3b82f6);
    color: #fff;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
}
.user-profile-card .profile-info {
    border-top: 1px solid #e5e7eb;
    padding-top: 20px;
}
.user-profile-card .profile-info p {
    margin: 8px 0;
    color: #64748b;
}
.user-profile-card .profile-info strong {
    color: #0f172a;
}

/* 登录注册表单 */
.ls-auth-form {
    max-width: 400px;
    margin: 0 auto;
    padding: 30px;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}
.ls-auth-form .form-group {
    margin-bottom: 20px;
}
.ls-auth-form label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    color: #374151;
}
.ls-auth-form input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    font-size: 14px;
}
.ls-auth-form input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}
.ls-auth-form .btn {
    width: 100%;
    padding: 14px;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}
.ls-auth-form .btn:hover {
    background: #1d4ed8;
}
.ls-auth-form .auth-links {
    text-align: center;
    margin-top: 16px;
}
.ls-auth-form .auth-links a {
    color: var(--primary);
    text-decoration: none;
}

/* 电商样式 */
.shopping-cart {
    background: #fff;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.cart-table {
    width: 100%;
    border-collapse: collapse;
}
.cart-table th,
.cart-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #e5e7eb;
}
.cart-table th {
    background: #f9fafb;
    font-weight: 600;
}
.cart-table .sale-price {
    color: #dc2626;
    font-weight: bold;
}
.cart-table .original-price {
    text-decoration: line-through;
    color: #9ca3af;
    margin-left: 8px;
}
.cart-actions {
    margin-top: 20px;
    display: flex;
    gap: 12px;
}
.cart-actions button {
    flex: 1;
    padding: 12px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}
.checkout-button {
    background: var(--primary);
    color: #fff;
}
.clear-cart-button {
    background: #fee2e2;
    color: #dc2626;
}

/* 商品列表 */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 24px;
    margin: 24px 0;
}
.product-item {
    background: #fff;
    border-radius: 12px;
    padding: 16px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    transition: all 0.3s;
}
.product-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}
.product-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 8px;
}
.product-item h3 {
    margin: 12px 0;
    font-size: 16px;
}
.product-item .price {
    font-size: 20px;
    font-weight: bold;
    color: #dc2626;
    margin: 8px 0;
}
.product-item button {
    width: 100%;
    padding: 10px;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: 6px;
    cursor: pointer;
}

/* 课程列表 */
.course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
    margin: 24px 0;
}
.course-item {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.course-item img {
    width: 100%;
    height: 180px;
    object-fit: cover;
}
.course-item h3 {
    padding: 16px;
    margin: 0;
    font-size: 18px;
}
.course-item .course-level,
.course-item .course-lessons,
.course-item .course-teacher {
    padding: 0 16px;
    color: #64748b;
    font-size: 14px;
}
.course-item .course-price {
    padding: 16px;
    font-size: 24px;
    font-weight: bold;
    color: #2563eb;
}
.course-item .progress-bar {
    height: 8px;
    background: #e5e7eb;
    border-radius: 4px;
    margin: 8px 16px;
    overflow: hidden;
}
.course-item .progress {
    height: 100%;
    background: linear-gradient(90deg, #2563eb, #3b82f6);
    border-radius: 4px;
    transition: width 0.3s;
}
.course-item .btn {
    display: block;
    margin: 16px;
    padding: 12px;
    background: var(--primary);
    color: #fff;
    text-align: center;
    border-radius: 8px;
    text-decoration: none;
}

/* 在线考试 */
.exam-container {
    background: #fff;
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.exam-container .question {
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid #e5e7eb;
}
.exam-container label {
    display: block;
    margin: 8px 0;
    cursor: pointer;
}

/* 社交互动 */
.interaction-buttons {
    display: flex;
    gap: 12px;
    margin: 16px 0;
}
.interaction-buttons button {
    padding: 8px 16px;
    background: #f3f4f6;
    border: none;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s;
}
.interaction-buttons button:hover {
    background: #e5e7eb;
}
.interaction-buttons .liked {
    color: #dc2626;
}

/* 收藏列表 */
.favorites-list,
.user-list,
.message-list {
    list-style: none;
    padding: 0;
}
.favorites-list li,
.user-list li,
.message-list li {
    padding: 12px;
    border-bottom: 1px solid #e5e7eb;
    display: flex;
    align-items: center;
    gap: 12px;
}
.favorites-list li a,
.user-list li a {
    flex: 1;
    color: var(--primary);
    text-decoration: none;
}
.favorites-list button,
.user-list button {
    padding: 6px 12px;
    background: #fee2e2;
    color: #dc2626;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

/* 私信 */
.messages-box {
    background: #fff;
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.messages-box .unread {
    background: #eff6ff;
}
.messages-box .message-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
}
.messages-box form {
    margin-top: 24px;
}
.messages-box form p {
    margin-bottom: 16px;
}
.messages-box form label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
}
.messages-box form input,
.messages-box form textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
}
.messages-box form button {
    padding: 12px 24px;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: 8px;
    cursor: pointer;
}

/* 动态时间线 */
.user-timeline {
    background: #fff;
    border-radius: 12px;
    padding: 24px;
}
.timeline-list {
    list-style: none;
    padding: 0;
}
.timeline-list li {
    padding: 12px;
    border-left: 2px solid #e5e7eb;
    margin-left: 12px;
}
.timeline-list .action {
    font-weight: 600;
}
.timeline-list .date {
    color: #9ca3af;
    font-size: 12px;
    margin-left: 8px;
}

/* 提示信息 */
.alert {
    padding: 16px;
    border-radius: 8px;
    margin: 16px 0;
}
.alert-warning {
    background: #fef3c7;
    color: #92400e;
}
.alert-info {
    background: #dbeafe;
    color: #1e40af;
}

/* 响应式 */
@media (max-width: 768px) {
    .product-grid,
    .course-grid {
        grid-template-columns: 1fr;
    }
    .ls-auth-form {
        padding: 20px;
    }
}