/* ============================================================
   register.css - 注册页面样式（深色版）
   配色与 login.css 一致：深蓝紫渐变 + 毛玻璃
   角色弹窗使用白色实心背景，清晰区分
   无多余装饰色块，允许滚动
   ============================================================ */

/* ============================================================
   0. 页面背景 - 深蓝紫色渐变（无装饰光晕，允许滚动）
   ============================================================ */

body {
    background: linear-gradient(135deg, #0c1445 0%, #1a2a6c 40%, #1e3a7a 70%, #0c1445 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
    margin: 0;
    padding: 40px 20px;
    overflow-y: auto;
}

html {
    min-height: 100%;
    overflow-x: hidden;
}

/* ============================================================
   1. 注册容器
   ============================================================ */

.register-container {
    max-width: 800px;
    width: 100%;
    margin: 0 auto;
    position: relative;
    z-index: 1;
    padding: 0;
}

.register-box {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: var(--radius-lg, 16px);
    padding: 40px 44px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.10);
    transition: transform var(--transition, 0.25s), box-shadow var(--transition, 0.25s);
}

.register-box:hover {
    transform: translateY(-2px);
    box-shadow: 0 24px 72px rgba(0, 0, 0, 0.6);
}

/* ============================================================
   2. 标题
   ============================================================ */

.register-header {
    text-align: center;
    margin-bottom: 32px;
}

.register-header h1 {
    font-size: 28px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 6px;
    letter-spacing: 0.5px;
}

.register-header p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 15px;
    font-weight: 400;
}

/* ============================================================
   3. 角色选择模态框 - 白色实心背景
   ============================================================ */

.role-modal {
    display: flex;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    animation: fadeIn 0.3s ease;
    padding: 20px;
}

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

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===== 弹窗内容 - 白色实心，文字深色 ===== */
.role-modal-content {
    background: #ffffff;
    border-radius: 20px;
    padding: 48px 56px;
    max-width: 560px;
    width: 90%;
    text-align: center;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
    animation: slideDown 0.4s ease;
    border: none;
    max-height: 90vh;
    overflow-y: auto;
}

.role-modal-content h2 {
    font-size: 26px;
    font-weight: 700;
    color: #1a202c;
    margin-bottom: 8px;
}

.role-modal-desc {
    color: #4a5568;
    font-size: 15px;
    margin-bottom: 32px;
}

.role-options {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.role-btn {
    flex: 1;
    padding: 30px 20px;
    border: 2px solid #e2e8f0;
    border-radius: 16px;
    background: #f7fafc;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
}

.role-btn:hover {
    border-color: #667eea;
    background: #edf2f7;
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(102, 126, 234, 0.2);
}

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

.role-btn .role-icon {
    font-size: 48px;
    margin-bottom: 12px;
    display: block;
}

.role-btn .role-name {
    font-size: 20px;
    font-weight: 600;
    color: #2d3748;
    margin-bottom: 4px;
}

.role-btn .role-desc {
    font-size: 13px;
    color: #a0aec0;
}

.role-btn.candidate-role:hover {
    border-color: #48bb78;
    background: #f0fff4;
}

.role-btn.interviewer-role:hover {
    border-color: #ed8936;
    background: #fffbeb;
}

/* ============================================================
   4. 当前身份显示 - 蓝紫色调
   ============================================================ */

.current-role-display {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 8px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 24px;
    flex-wrap: wrap;
    border: 1px solid rgba(255, 255, 255, 0.06);
}

/* ===== 身份标签 - 统一蓝紫色调 ===== */
.current-role-display .role-tag {
    padding: 4px 16px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 14px;
    /* 统一蓝紫色系 */
    background: rgba(129, 140, 248, 0.20);
    color: #a78bfa;
    border: 1px solid rgba(129, 140, 248, 0.15);
}

/* 不同角色使用不同深浅的蓝紫，但整体保持协调 */
.current-role-display .role-tag.role-candidate {
    background: rgba(129, 140, 248, 0.18);
    color: #a78bfa;
    border-color: rgba(129, 140, 248, 0.12);
}

.current-role-display .role-tag.role-interviewer {
    background: rgba(129, 140, 248, 0.25);
    color: #c4b5fd;
    border-color: rgba(129, 140, 248, 0.18);
}

.current-role-display .role-tag:not(.role-candidate):not(.role-interviewer) {
    background: rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.5);
    border-color: rgba(255, 255, 255, 0.06);
}

.change-role-btn {
    margin-left: auto;
    padding: 6px 16px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.06);
    color: rgba(255, 255, 255, 0.6);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
    flex-shrink: 0;
}

.change-role-btn:hover {
    border-color: #818cf8;
    color: #a78bfa;
    background: rgba(129, 140, 248, 0.12);
}

/* ============================================================
   5. 表单区块
   ============================================================ */

.form-section {
    margin-bottom: 28px;
    padding-bottom: 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.form-section:last-of-type {
    border-bottom: none;
    margin-bottom: 0;
}

.form-section h3 {
    font-size: 16px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 16px;
    padding-left: 12px;
    border-left: 3px solid #818cf8;
}

/* ============================================================
   6. 表单行
   ============================================================ */

.form-row {
    display: flex;
    gap: 20px;
}

/* ============================================================
   7. 表单组 - 输入框（行高加大，文字完整显示）
   ============================================================ */

.form-group {
    flex: 1;
    margin-bottom: 16px;
}

.form-group.half {
    flex: 0 0 calc(50% - 10px);
}

.form-group.full {
    flex: 1;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 6px;
}

.required {
    color: #fc8181;
    font-weight: 700;
}

/* ===== 输入框 - 深色半透明，行高加大 ===== */
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid rgba(255, 255, 255, 0.12);
    border-radius: 8px;
    font-size: 16px;
    font-family: inherit;
    transition: all 0.25s ease;
    background: rgba(255, 255, 255, 0.06);
    color: #ffffff;
    line-height: 1.6;
    min-height: 48px;
    box-sizing: border-box;
}

.form-group select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='rgba(255,255,255,0.4)' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 40px;
    cursor: pointer;
    color: #ffffff;
}

.form-group select option {
    background: #1a2a6c;
    color: #ffffff;
    padding: 8px 12px;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.3);
    font-size: 15px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #818cf8;
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 4px rgba(129, 140, 248, 0.12);
}

/* ===== 输入框验证状态 ===== */
.form-group input:invalid:not(:focus),
.form-group select:invalid:not(:focus) {
    border-color: rgba(252, 129, 129, 0.4);
}

.form-group input:valid:not(:empty),
.form-group select:valid:not(:empty) {
    border-color: rgba(72, 187, 120, 0.3);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
    padding: 12px 16px;
}

.form-group .hint {
    display: block;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.3);
    margin-top: 4px;
    transition: color 0.3s;
}

/* ============================================================
   8. 错误和成功消息
   ============================================================ */

.error-message {
    display: none;
    background: rgba(229, 62, 62, 0.15);
    color: #fc8181;
    padding: 12px 16px;
    border-radius: 8px;
    border: 1px solid rgba(252, 129, 129, 0.2);
    margin-top: 16px;
    font-size: 14px;
}

.success-message {
    display: none;
    background: rgba(72, 187, 120, 0.15);
    color: #68d391;
    padding: 12px 16px;
    border-radius: 8px;
    border: 1px solid rgba(72, 187, 120, 0.2);
    margin-top: 16px;
    font-size: 14px;
}

/* ============================================================
   9. 表单操作按钮
   ============================================================ */

.form-actions {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.register-btn {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, #818cf8 0%, #667eea 50%, #7c3aed 100%);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 17px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(102, 126, 234, 0.35);
    letter-spacing: 0.5px;
}

.register-btn:hover:not(:disabled) {
    transform: translateY(-3px);
    box-shadow: 0 8px 36px rgba(102, 126, 234, 0.5);
}

.register-btn:active:not(:disabled) {
    transform: translateY(-1px) scale(0.98);
}

.register-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.login-link {
    color: #a78bfa;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s;
}

.login-link:hover {
    color: #c4b5fd;
    text-decoration: underline;
}

/* ============================================================
   10. 加载动画
   ============================================================ */

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

.loading-spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    margin-right: 8px;
    vertical-align: middle;
}

/* ============================================================
   11. 用户须知弹窗（新增）
   ============================================================ */

.terms-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.65);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 1100;
    justify-content: center;
    align-items: center;
    padding: 20px;
    animation: fadeIn 0.25s ease;
}

.terms-modal.active {
    display: flex;
}

.terms-modal-content {
    background: #ffffff;
    border-radius: 20px;
    padding: 32px 36px;
    max-width: 640px;
    width: 100%;
    max-height: 88vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.55);
    animation: slideDown 0.35s ease;
}

.terms-modal-content h2 {
    font-size: 22px;
    font-weight: 700;
    color: #1a202c;
    margin: 0 0 6px 0;
    text-align: center;
}

.terms-subtitle {
    text-align: center;
    color: #718096;
    font-size: 13px;
    margin: 0 0 16px 0;
}

.terms-content {
    flex: 1;
    overflow-y: auto;
    background: #f7fafc;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 18px 22px;
    color: #2d3748;
    font-size: 14px;
    line-height: 1.9;
    margin-bottom: 16px;
    min-height: 280px;
    max-height: 52vh;
    scroll-behavior: smooth;
    white-space: pre-wrap;
    word-break: break-word;
}

.terms-content p {
    margin: 0 0 10px 0;
}

/* 滚动条美化 */
.terms-content::-webkit-scrollbar {
    width: 8px;
}
.terms-content::-webkit-scrollbar-track {
    background: #edf2f7;
    border-radius: 4px;
}
.terms-content::-webkit-scrollbar-thumb {
    background: #cbd5e0;
    border-radius: 4px;
}
.terms-content::-webkit-scrollbar-thumb:hover {
    background: #a0aec0;
}

.terms-actions {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    flex-shrink: 0;
}

.terms-agree-btn {
    padding: 12px 28px;
    background: linear-gradient(135deg, #818cf8 0%, #667eea 50%, #7c3aed 100%);
    color: #ffffff;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 16px rgba(102, 126, 234, 0.3);
}

.terms-agree-btn:disabled {
    background: #cbd5e0;
    color: #ffffff;
    cursor: not-allowed;
    box-shadow: none;
    opacity: 0.75;
}

.terms-agree-btn:not(:disabled):hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 26px rgba(102, 126, 234, 0.45);
}

.terms-cancel-btn {
    padding: 12px 24px;
    background: #edf2f7;
    color: #4a5568;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    font-size: 15px;
    cursor: pointer;
    transition: all 0.2s;
}

.terms-cancel-btn:hover {
    background: #e2e8f0;
    color: #2d3748;
}

/* ============================================================
   12. 响应式 - 窄屏
   ============================================================ */

@media (max-width: 768px) {
    body {
        padding: 20px 16px;
    }

    .register-box {
        padding: 24px 20px;
        border-radius: 12px;
    }

    .register-header h1 {
        font-size: 24px;
    }

    .form-row {
        flex-direction: column;
        gap: 0;
    }

    .form-group.half {
        flex: 1;
    }

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

    .register-btn {
        width: 100%;
    }

    .role-modal-content {
        padding: 32px 24px;
    }

    .role-options {
        flex-direction: column;
        gap: 12px;
    }

    .role-btn {
        padding: 20px;
    }

    /* ===== 窄屏：身份信息放在同一行 ===== */
    .current-role-display {
        flex-direction: row;
        flex-wrap: wrap;
        align-items: center;
        justify-content: flex-start;
        gap: 8px 12px;
        padding: 10px 14px;
    }

    .current-role-display .role-tag {
        flex-shrink: 0;
        font-size: 13px;
        padding: 3px 14px;
    }

    .change-role-btn {
        margin-left: auto;
        flex-shrink: 0;
        padding: 4px 14px;
        font-size: 12px;
    }

    /* ===== 窄屏下输入框微调 ===== */
    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 10px 14px;
        font-size: 15px;
        min-height: 44px;
    }

    /* 用户须知弹窗窄屏 */
    .terms-modal-content {
        padding: 24px 18px;
        max-height: 92vh;
    }
    .terms-content {
        min-height: 220px;
        padding: 14px 16px;
    }
    .terms-actions {
        flex-direction: column-reverse;
    }
    .terms-agree-btn,
    .terms-cancel-btn {
        width: 100%;
    }
}

/* ============================================================
   13. 响应式 - 超小屏
   ============================================================ */

@media (max-width: 480px) {
    body {
        padding: 12px 10px;
    }

    .register-box {
        padding: 20px 16px;
        border-radius: 12px;
    }

    .register-header h1 {
        font-size: 20px;
    }

    .register-header p {
        font-size: 13px;
    }

    .form-group label {
        font-size: 13px;
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
        font-size: 14px;
        padding: 10px 12px;
        min-height: 42px;
    }

    .role-modal-content {
        padding: 24px 16px;
    }

    .role-modal-content h2 {
        font-size: 20px;
    }

    /* ===== 超小屏：身份信息紧凑排列 ===== */
    .current-role-display {
        gap: 6px 10px;
        padding: 8px 12px;
        font-size: 13px;
    }

    .current-role-display .role-tag {
        font-size: 12px;
        padding: 2px 12px;
    }

    .change-role-btn {
        font-size: 11px;
        padding: 3px 10px;
    }

    /* 用户须知弹窗超小屏 */
    .terms-modal-content {
        padding: 20px 14px;
        border-radius: 14px;
    }
    .terms-modal-content h2 {
        font-size: 18px;
    }
    .terms-content {
        font-size: 13px;
        padding: 12px 14px;
    }
}