/* Yeying面试官 - 现代化主样式文件 */

/* ==================== 配色系统 ==================== */
:root {
    /* 主题色 - 明亮清爽风 */
    --bg-primary: #f8f9fe;
    --bg-secondary: #ffffff;
    --bg-card: rgba(255, 255, 255, 0.8);
    --bg-glass: rgba(255, 255, 255, 0.6);

    /* 渐变色 */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-success: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-tech: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);

    /* 强调色 */
    --accent-blue: #5b7cfa;
    --accent-purple: #8b5cf6;
    --accent-pink: #ec4899;
    --accent-green: #10b981;

    /* 文字颜色 */
    --text-primary: #1a202c;
    --text-secondary: #4a5568;
    --text-muted: #718096;

    /* 边框和阴影 */
    --border-color: rgba(0, 0, 0, 0.08);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    --glow-blue: 0 0 30px rgba(91, 124, 250, 0.3);
    --glow-purple: 0 0 30px rgba(139, 92, 246, 0.3);

    /* 旧的Bootstrap变量兼容 */
    --primary-color: #667eea;
    --success-color: #10b981;
    --info-color: #5b7cfa;
    --warning-color: #fbbf24;
    --danger-color: #ef4444;
}

/* ==================== 全局样式 ==================== */
body {
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    position: relative;
    overflow-x: hidden;
}

/* 导航链接hover效果 */
.nav-link {
    cursor: pointer;
    transition: all 0.3s ease !important;
}

.nav-link:hover {
    background: rgba(102, 126, 234, 0.1) !important;
    color: #667eea !important;
    border-radius: 10px;
    transform: translateY(-1px);
}

.nav-link:active {
    transform: translateY(0);
}

/* 退出按钮hover效果 */
.btn-outline-secondary:hover {
    background: rgba(108, 117, 125, 0.1) !important;
    border-color: #6c757d !important;
    color: #6c757d !important;
    transform: translateY(-1px);
    box-shadow: 0 3px 10px rgba(108, 117, 125, 0.2);
}

/* 动态渐变背景 - 浅色版 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 30%, rgba(102, 126, 234, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(139, 92, 246, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(79, 172, 254, 0.06) 0%, transparent 60%);
    pointer-events: none;
    z-index: 0;
    animation: breathe 15s ease-in-out infinite;
}

/* 模糊光球效果 - 浅色版 */
body::after {
    content: '';
    position: fixed;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(91, 124, 250, 0.12) 0%, transparent 70%);
    filter: blur(80px);
    pointer-events: none;
    z-index: 0;
    animation: floatBall 20s ease-in-out infinite;
}

@keyframes breathe {
    0%, 100% {
        opacity: 0.8;
        transform: scale(1);
    }
    50% {
        opacity: 1;
        transform: scale(1.1);
    }
}

@keyframes floatBall {
    0%, 100% {
        top: 10%;
        left: 10%;
        transform: translate(0, 0);
    }
    25% {
        top: 20%;
        left: 80%;
        transform: translate(-50%, 0);
    }
    50% {
        top: 70%;
        left: 70%;
        transform: translate(-50%, -50%);
    }
    75% {
        top: 60%;
        left: 20%;
        transform: translate(0, -50%);
    }
}

main {
    position: relative;
    z-index: 1;
}

/* ==================== 玻璃态卡片 ==================== */
.card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: default;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: rgba(91, 124, 250, 0.3);
}

/* 可点击的卡片 */
.card.session-card,
.card.room-card,
[onclick] .card,
.card[style*="cursor: pointer"] {
    cursor: pointer !important;
}

.card.session-card:hover,
.card.room-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.2);
    border-color: rgba(102, 126, 234, 0.4);
}

.card-header {
    background: rgba(0, 0, 0, 0.02);
    border-bottom: 1px solid var(--border-color);
    padding: 1.25rem 1.5rem;
}

.card-body {
    padding: 1.5rem;
}

/* 可点击的卡片body hover效果 */
.card-body[style*="cursor: pointer"]:hover {
    background: rgba(102, 126, 234, 0.03);
}

.card-footer {
    background: rgba(0, 0, 0, 0.01);
    border-top: 1px solid var(--border-color);
    padding: 1rem 1.5rem;
    transition: all 0.3s ease;
}

/* 可点击的卡片footer hover效果 */
.card-footer[style*="cursor: pointer"]:hover {
    background: rgba(102, 126, 234, 0.05);
}

/* ==================== 面试间和会话卡片 ==================== */
.room-card, .session-card {
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.room-card::before, .session-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

.room-card:hover::before {
    width: 8px;
}

.session-card::before {
    background: var(--gradient-success);
}

/* ==================== 按钮样式 ==================== */
.btn {
    border-radius: 12px;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    border: none;
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

/* 通用按钮hover效果 */
.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

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

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
    filter: brightness(1.1);
}

/* 小按钮样式 */
.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-sm:hover {
    transform: translateY(-1px);
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.15);
}

/* 删除按钮hover效果 */
.delete-room-btn,
.delete-session-btn,
.btn-outline-light {
    transition: all 0.3s ease;
}

.delete-room-btn:hover,
.delete-session-btn:hover {
    background: rgba(239, 68, 68, 0.1) !important;
    border-color: #ef4444 !important;
    color: #ef4444 !important;
    transform: translateY(-1px);
    box-shadow: 0 3px 10px rgba(239, 68, 68, 0.3);
}

.btn-outline-light {
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    background: transparent;
}

.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.2) !important;
    border-color: rgba(255, 255, 255, 0.6) !important;
    color: white !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.3);
}

/* 其他按钮样式 */
.btn-light:hover {
    background: rgba(248, 250, 252, 1) !important;
    transform: translateY(-1px);
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
}

.btn-success:hover {
    background: var(--gradient-success) !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.4);
    filter: brightness(1.1);
}

.btn-info:hover {
    background: var(--gradient-success) !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(91, 124, 250, 0.4);
    filter: brightness(1.1);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

/* ==================== 表单控件 ==================== */
.form-control {
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 0.875rem 1.25rem;
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.form-control:focus {
    background: rgba(255, 255, 255, 0.95);
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(91, 124, 250, 0.15);
    color: var(--text-primary);
}

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

/* ==================== 聊天界面 ==================== */
.chat-container {
    height: calc(100vh - 200px);
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
}

.chat-header {
    background: var(--gradient-primary);
    color: white;
    padding: 1.5rem;
    border-radius: 20px 20px 0 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
    background: var(--bg-primary);
    scroll-behavior: smooth;
}

/* 自定义滚动条 */
.chat-messages::-webkit-scrollbar {
    width: 8px;
}

.chat-messages::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.05);
    border-radius: 10px;
}

.chat-messages::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 10px;
}

.chat-messages::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.3);
}

/* 消息气泡 */
.message {
    margin-bottom: 1.5rem;
    display: flex;
    align-items: flex-start;
    animation: slideInUp 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.message-avatar {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: white;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
}

.message.user .message-avatar {
    background: var(--gradient-primary);
    margin-left: 0.875rem;
    order: 2;
}

.message.ai .message-avatar {
    background: var(--gradient-success);
    margin-right: 0.875rem;
}

.message-content {
    max-width: 70%;
    padding: 1.25rem 1.5rem;
    border-radius: 18px;
    position: relative;
    line-height: 1.6;
}

.message.user .message-content {
    background: var(--gradient-primary);
    color: white;
    border-bottom-right-radius: 6px;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.message.ai .message-content {
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-bottom-left-radius: 6px;
    box-shadow: var(--shadow-sm);
}

/* ==================== 输入区域 ==================== */
.chat-input {
    padding: 1.5rem;
    border-top: 1px solid var(--border-color);
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border-radius: 0 0 20px 20px;
}

/* ==================== 问题列表 ==================== */
.questions-list {
    list-style: none;
    padding: 0;
}

.questions-list li {
    background: var(--bg-secondary);
    backdrop-filter: blur(10px);
    margin-bottom: 0.875rem;
    padding: 1.25rem;
    border-radius: 12px;
    border-left: 3px solid var(--accent-blue);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.questions-list li:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
    border-left-color: var(--accent-purple);
    background: rgba(0, 0, 0, 0.02);
}

.question-number {
    font-weight: bold;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-right: 0.5rem;
}

/* ==================== 问题卡片 ==================== */
.question-card {
    background: var(--gradient-primary);
    color: white;
    border-radius: 16px;
    padding: 1.75rem;
    margin-bottom: 1.25rem;
    box-shadow: 0 8px 30px rgba(102, 126, 234, 0.4);
    position: relative;
    overflow: hidden;
}

.question-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    pointer-events: none;
}

.question-card .question-text {
    font-size: 1.15rem;
    line-height: 1.7;
    margin-bottom: 0.75rem;
    position: relative;
}

/* ==================== 加载动画 ==================== */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(0, 0, 0, 0.1);
    border-radius: 50%;
    border-top-color: var(--accent-blue);
    animation: spin 0.8s linear infinite;
}

.typing-indicator {
    display: flex;
    align-items: center;
    padding: 1rem;
    color: var(--text-secondary);
    font-style: italic;
}

.typing-dots span {
    height: 8px;
    width: 8px;
    background: var(--accent-blue);
    border-radius: 50%;
    display: inline-block;
    margin: 0 2px;
    animation: typing 1.4s infinite ease-in-out;
    box-shadow: 0 0 10px rgba(91, 124, 250, 0.4);
}

.typing-dots span:nth-child(1) { animation-delay: -0.32s; }
.typing-dots span:nth-child(2) { animation-delay: -0.16s; }

/* ==================== 轮次标识 ==================== */
.round-header {
    text-align: center;
    margin: 2.5rem 0 1.5rem;
    position: relative;
}

.round-header::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color) 20%, var(--border-color) 80%, transparent);
    z-index: 1;
}

.round-header span {
    background: var(--bg-secondary);
    padding: 0.75rem 1.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: 25px;
    position: relative;
    z-index: 2;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

/* ==================== 统计卡片 ==================== */
.stats-card {
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
}

.stats-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: rgba(0, 212, 255, 0.4);
}

.stats-card i {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ==================== 徽章 ==================== */
.badge {
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.85rem;
}

.badge.bg-primary {
    background: var(--gradient-primary) !important;
}

.badge.bg-success {
    background: var(--gradient-success) !important;
}

/* ==================== 文字样式 ==================== */
.text-muted {
    color: var(--text-muted) !important;
}

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

.lead {
    font-size: 1.15rem;
    font-weight: 400;
    line-height: 1.7;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    font-weight: 700;
}

.display-3, .display-4, .display-5 {
    font-weight: 800;
    letter-spacing: -0.02em;
}

/* ==================== 动画效果 ==================== */
@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes typing {
    0%, 60%, 100% { transform: translateY(0); }
    30% { transform: translateY(-12px); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 768px) {
    .message-content {
        max-width: 85%;
    }

    .chat-container {
        height: calc(100vh - 150px);
        border-radius: 16px;
    }

    .message-avatar {
        width: 36px;
        height: 36px;
        font-size: 1rem;
    }

    .card-body {
        padding: 1.25rem;
    }
}

/* ==================== 工具类 ==================== */
.glass {
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.glow {
    box-shadow: var(--glow-blue);
}

.shadow-neon {
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
}

/* ==================== Modal修复 ==================== */
/* 修复Bootstrap modal backdrop阻止点击的问题 */
.modal-backdrop {
    pointer-events: none !important;
    opacity: 0 !important; /* 完全透明，不显示灰色遮罩 */
}

/* 确保modal本身可以接收点击事件 */
.modal {
    pointer-events: auto !important;
}

/* 确保modal内的内容可以交互 */
.modal-dialog {
    pointer-events: auto !important;
}