/* 家政远程视频面试系统 - 样式 */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #2563EB;
    --primary-dark: #1D4ED8;
    --primary-light: #DBEAFE;
    --success: #10B981;
    --danger: #EF4444;
    --warning: #F59E0B;
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: linear-gradient(135deg, #EFF6FF 0%, #DBEAFE 100%);
    min-height: 100vh;
    color: var(--gray-800);
    line-height: 1.6;
}

/* ==================== 首页布局 ==================== */

.container {
    max-width: 520px;
    margin: 0 auto;
    padding: 20px 16px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.header {
    margin-bottom: 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    font-size: 36px;
}

.header h1 {
    font-size: 22px;
    color: var(--gray-900);
    font-weight: 700;
}

.subtitle {
    font-size: 13px;
    color: var(--gray-500);
    margin-top: 2px;
}

.card {
    background: #fff;
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
    flex: 1;
}

/* ==================== 角色选择 ==================== */

.role-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
}

.role-tab {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 14px 8px;
    border-radius: 12px;
    border: 2px solid var(--gray-200);
    cursor: pointer;
    transition: all 0.2s;
    font-size: 13px;
    color: var(--gray-600);
}

.role-tab:hover {
    border-color: var(--primary-light);
}

.role-tab.active {
    border-color: var(--primary);
    background: var(--primary-light);
    color: var(--primary);
    font-weight: 600;
}

.role-icon {
    font-size: 24px;
}

/* ==================== 表单 ==================== */

.form-panel h2 {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--gray-900);
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 6px;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 12px 14px;
    border: 1.5px solid var(--gray-200);
    border-radius: 10px;
    font-size: 15px;
    transition: border-color 0.2s;
    outline: none;
    background: #fff;
}

.form-group input:focus,
.form-group select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}

.checkbox-group {
    display: flex;
    align-items: center;
}

.checkbox-label {
    display: flex !important;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.checkbox-label input {
    width: auto !important;
}

/* ==================== 按钮 ==================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 12px 24px;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    outline: none;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(37,99,235,0.3);
}

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

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-block {
    width: 100%;
}

.btn-small {
    padding: 8px 14px;
    font-size: 13px;
}

/* ==================== 邀请面板 ==================== */

.invite-panel {
    margin-top: 20px;
    padding: 20px;
    background: linear-gradient(135deg, #EFF6FF, #DBEAFE);
    border-radius: 12px;
    border: 1px dashed var(--primary);
}

.invite-panel h3 {
    font-size: 16px;
    margin-bottom: 16px;
    color: var(--success);
}

.invite-code-box,
.invite-link-box {
    margin-bottom: 14px;
}

.invite-code-box label,
.invite-link-box label {
    font-size: 13px;
    color: var(--gray-600);
    display: block;
    margin-bottom: 6px;
}

.code-display {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 4px;
    text-align: center;
    padding: 12px;
    background: #fff;
    border-radius: 10px;
    font-family: 'Courier New', monospace;
}

.link-row {
    display: flex;
    gap: 8px;
}

.link-row input {
    flex: 1;
    padding: 10px 12px;
    border: 1.5px solid var(--gray-200);
    border-radius: 8px;
    font-size: 13px;
    background: #fff;
}

/* ==================== 页脚 ==================== */

.footer {
    margin-top: 20px;
    text-align: center;
    font-size: 13px;
    color: var(--gray-500);
}

/* ==================== 房间页面 ==================== */

.room-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    background: #1a1a2e;
    color: #fff;
}

.room-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
    background: rgba(0,0,0,0.3);
    backdrop-filter: blur(10px);
    z-index: 10;
}

.room-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.btn-back {
    background: rgba(255,255,255,0.1);
    border: none;
    color: #fff;
    padding: 8px 14px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
}

.btn-back:hover {
    background: rgba(255,255,255,0.2);
}

.room-title {
    display: flex;
    align-items: center;
    gap: 8px;
}

.room-title span:first-child {
    font-size: 16px;
    font-weight: 600;
}

.room-id-badge {
    font-size: 11px;
    background: var(--primary);
    padding: 2px 8px;
    border-radius: 4px;
}

.room-status {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 14px;
}

.timer {
    font-size: 18px;
    font-weight: 700;
    font-family: 'Courier New', monospace;
    color: var(--primary-light);
}

.participant-count {
    display: flex;
    align-items: center;
    gap: 4px;
    background: rgba(255,255,255,0.1);
    padding: 4px 10px;
    border-radius: 6px;
}

.recording-indicator {
    color: var(--danger);
    font-weight: 600;
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0.4; }
}

/* ==================== 视频网格 ==================== */

.video-grid {
    flex: 1;
    display: grid;
    gap: 8px;
    padding: 8px;
    overflow: hidden;
    grid-template-columns: 1fr;
    grid-template-rows: 1fr;
    min-height: 0;
}

.video-grid.grid-1 {
    grid-template-columns: 1fr;
    grid-template-rows: 1fr;
}

.video-grid.grid-2 {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr;
}

.video-grid.grid-4 {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
}

.video-grid.grid-multi {
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(2, 1fr);
}

.video-item {
    position: relative;
    background: #16213e;
    border-radius: 12px;
    overflow: hidden;
    min-height: 0;
}

.video-item video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.video-label {
    position: absolute;
    bottom: 8px;
    left: 8px;
    display: flex;
    align-items: center;
    gap: 6px;
    background: rgba(0,0,0,0.6);
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 12px;
    z-index: 2;
}

.role-badge {
    background: var(--primary);
    padding: 1px 6px;
    border-radius: 3px;
    font-size: 10px;
    font-weight: 600;
}

.video-placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: var(--gray-400);
    font-size: 14px;
    z-index: 1;
}

.video-placeholder span {
    font-size: 40px;
}

.local-video .video-label {
    background: rgba(37,99,235,0.8);
}

/* ==================== 控制栏 ==================== */

.control-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 16px;
    background: rgba(0,0,0,0.4);
    flex-wrap: wrap;
}

.ctrl-btn {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 10px 16px;
    border: none;
    border-radius: 12px;
    background: rgba(255,255,255,0.1);
    color: #fff;
    cursor: pointer;
    transition: all 0.2s;
    min-width: 60px;
}

.ctrl-btn:hover {
    background: rgba(255,255,255,0.2);
}

.ctrl-btn.disabled {
    background: rgba(239,68,68,0.3);
}

.ctrl-btn.active {
    background: var(--primary);
}

.ctrl-btn.hangup {
    background: var(--danger);
}

.ctrl-btn.hangup:hover {
    background: #DC2626;
}

.ctrl-icon {
    font-size: 22px;
}

.ctrl-label {
    font-size: 11px;
}

.ctrl-btn .badge {
    position: absolute;
    top: 4px;
    right: 4px;
    background: var(--danger);
    color: #fff;
    font-size: 10px;
    min-width: 16px;
    height: 16px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 4px;
}

/* ==================== 聊天面板 ==================== */

.chat-panel {
    position: fixed;
    right: -320px;
    top: 0;
    bottom: 0;
    width: 320px;
    background: #fff;
    box-shadow: -4px 0 20px rgba(0,0,0,0.15);
    display: flex;
    flex-direction: column;
    transition: right 0.3s;
    z-index: 100;
    color: var(--gray-800);
}

.chat-panel.open {
    right: 0;
}

.chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px;
    border-bottom: 1px solid var(--gray-200);
    font-weight: 600;
}

.btn-close {
    background: none;
    border: none;
    font-size: 18px;
    cursor: pointer;
    color: var(--gray-500);
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.chat-msg {
    max-width: 85%;
    padding: 8px 12px;
    border-radius: 10px;
    background: var(--gray-100);
    font-size: 14px;
    word-break: break-word;
}

.chat-msg.mine {
    align-self: flex-end;
    background: var(--primary);
    color: #fff;
}

.chat-msg-name {
    font-size: 11px;
    color: var(--gray-500);
    margin-bottom: 2px;
}

.chat-msg.mine .chat-msg-name {
    color: rgba(255,255,255,0.8);
}

.chat-input-area {
    display: flex;
    gap: 8px;
    padding: 12px;
    border-top: 1px solid var(--gray-200);
}

.chat-input-area input {
    flex: 1;
    padding: 10px 12px;
    border: 1.5px solid var(--gray-200);
    border-radius: 8px;
    outline: none;
    font-size: 14px;
}

.chat-input-area input:focus {
    border-color: var(--primary);
}

/* ==================== 弹窗 ==================== */

.modal {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
    padding: 20px;
}

.modal-content {
    background: #fff;
    border-radius: 16px;
    padding: 24px;
    max-width: 400px;
    width: 100%;
    color: var(--gray-800);
}

.modal-content h3 {
    margin-bottom: 16px;
}

/* ==================== 加入页面 ==================== */

.join-welcome {
    text-align: center;
    padding: 24px 0;
}

.join-icon {
    font-size: 48px;
    margin-bottom: 12px;
}

.join-welcome p {
    font-size: 16px;
    color: var(--gray-600);
}

.back-link a {
    color: var(--primary);
    text-decoration: none;
    font-size: 14px;
}

/* ==================== Toast ==================== */

.toast {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(-100px);
    padding: 12px 24px;
    border-radius: 10px;
    background: var(--gray-800);
    color: #fff;
    font-size: 14px;
    z-index: 300;
    transition: transform 0.3s;
    box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

.toast.show {
    transform: translateX(-50%) translateY(0);
}

.toast-error { background: var(--danger); }
.toast-success { background: var(--success); }

/* ==================== 响应式 ==================== */

@media (max-width: 640px) {
    .container {
        padding: 12px;
    }

    .card {
        padding: 16px;
    }

    .control-bar {
        gap: 6px;
        padding: 10px;
    }

    .ctrl-btn {
        min-width: 50px;
        padding: 8px 10px;
    }

    .ctrl-label {
        display: none;
    }

    .video-grid.grid-4 {
        grid-template-columns: 1fr 1fr;
    }

    .chat-panel {
        width: 100%;
        right: -100%;
    }

    .room-header {
        padding: 8px 12px;
    }

    .room-status {
        gap: 8px;
    }

    .timer {
        font-size: 15px;
    }
}

/* 深色模式下的滚动条 */
.chat-messages::-webkit-scrollbar {
    width: 6px;
}

.chat-messages::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: 3px;
}

.video-grid::-webkit-scrollbar {
    display: none;
}

/* 加载动画 */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.loading {
    animation: pulse 1.5s infinite;
}