/* ============================================================
   登录页面 (login-) — 页面专属样式
   ============================================================ */

/* ========== 外层容器 — 全屏居中 ========== */
html, body {
    height: 100%;
    margin: 0;
    padding: 0;
}

.login-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--bg-body, #f8fafc);
    padding: 20px;
    box-sizing: border-box;
}

/* ========== 登录卡片 ========== */
.login-card {
    width: 420px;
    padding: 40px 40px 32px;
    background: var(--bg-white, #ffffff);
    border-radius: var(--radius-xl, 16px);
    box-shadow: var(--shadow-xl, 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1));
    border: none;
    box-sizing: border-box;
    animation: login-card-enter 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes login-card-enter {
    from {
        opacity: 0;
        transform: translateY(16px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* ========== Logo 区 ========== */
.login-logo {
    text-align: center;
    margin-bottom: 32px;
}

.login-logo-icon {
    width: 44px;
    height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary-light, #3b82f6) 0%, var(--color-primary, #2563eb) 100%);
    border-radius: var(--radius-lg, 12px);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
    margin-bottom: 12px;
}

.login-logo-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary, #0f172a);
    letter-spacing: -0.01em;
    line-height: 1.4;
    margin-bottom: 2px;
}

.login-logo-sub {
    font-size: 12px;
    font-weight: 400;
    color: var(--text-tertiary, #94a3b8);
    letter-spacing: 0.3px;
}

/* ========== 表单 ========== */
.login-form {
    display: flex;
    flex-direction: column;
}

/* ========== 表单字段 ========== */
.login-field {
    display: flex;
    flex-direction: column;
    margin-bottom: 20px;
}

.login-field:last-of-type {
    margin-bottom: 24px;
}

/* ========== 标签 ========== */
.login-label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary, #475569);
    margin-bottom: 6px;
    line-height: 1.4;
    cursor: default;
}

/* ========== 输入框 / 下拉框 — 复用全局样式 ========== */
.login-input,
.login-select {
    height: 36px;
    padding: 6px 12px;
    font-size: 14px;
    line-height: 1.5;
    border: 1px solid var(--border-color, #e2e8f0);
    border-radius: var(--radius-base, 8px);
    background: var(--bg-white, #ffffff);
    color: var(--text-primary, #0f172a);
    transition: all var(--transition-base, 200ms cubic-bezier(0.4, 0, 0.2, 1));
    outline: none;
    width: 100%;
    box-sizing: border-box;
}

.login-input:hover,
.login-select:hover {
    border-color: var(--text-tertiary, #94a3b8);
}

.login-input:focus,
.login-select:focus {
    border-color: var(--color-primary, #2563eb);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.08);
}

.login-input::placeholder {
    color: var(--text-disabled, #cbd5e1);
}

/* ========== 下拉框自定义箭头 ========== */
.login-select {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%2394a3b8'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    padding-right: 28px;
    cursor: pointer;
}

/* ========== 密码输入框 — 带切换按钮 ========== */
.login-pwd-wrap {
    position: relative;
    display: flex;
    align-items: center;
}

.login-input--pwd {
    padding-right: 38px;
}

.login-pwd-toggle {
    position: absolute;
    right: 6px;
    top: 50%;
    transform: translateY(-50%);
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-tertiary, #94a3b8);
    border-radius: var(--radius-sm, 6px);
    transition: color var(--transition-base, 200ms), background var(--transition-base, 200ms);
    padding: 0;
}

.login-pwd-toggle:hover {
    color: var(--text-secondary, #475569);
    background: var(--bg-subtle, #f1f5f9);
}

.login-pwd-toggle:active {
    color: var(--text-primary, #0f172a);
}

/* ========== 验证码区域 ========== */
.login-captcha-row {
    display: flex;
    gap: 8px;
    align-items: stretch;
}

.login-input--captcha {
    flex: 1;
    min-width: 0;
}

.login-captcha-canvas {
    width: 100px;
    height: 36px;
    border-radius: var(--radius-base, 8px);
    cursor: pointer;
    flex-shrink: 0;
    border: 1px solid var(--border-color, #e2e8f0);
    transition: border-color var(--transition-base, 200ms);
    box-sizing: border-box;
}

.login-captcha-canvas:hover {
    border-color: var(--text-tertiary, #94a3b8);
}

.login-captcha-canvas:active {
    border-color: var(--color-primary, #2563eb);
}

/* ========== 错误提示 ========== */
.login-error {
    font-size: 12px;
    color: var(--color-danger, #ef4444);
    margin-top: 4px;
    line-height: 1.4;
    min-height: 0;
    overflow: hidden;
    max-height: 0;
    opacity: 0;
    transition: max-height 0.25s ease, opacity 0.25s ease, margin-top 0.25s ease;
}

.login-error.show {
    max-height: 40px;
    opacity: 1;
    margin-top: 4px;
}

/* 输入框错误状态 */
.login-input.error,
.login-select.error {
    border-color: var(--color-danger, #ef4444);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.08);
}

.login-input.error:focus,
.login-select.error:focus {
    border-color: var(--color-danger, #ef4444);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.08);
}

/* ========== 登录按钮 ========== */
.login-btn {
    height: 40px;
    padding: 0 16px;
    font-size: 14px;
    font-weight: 500;
    line-height: 1.5;
    border-radius: var(--radius-base, 8px);
    border: 1px solid var(--color-primary, #2563eb);
    background: linear-gradient(135deg, var(--color-primary, #2563eb) 0%, var(--color-primary-hover, #1d4ed8) 100%);
    color: var(--text-white, #ffffff);
    cursor: pointer;
    transition: all var(--transition-base, 200ms);
    box-shadow: var(--shadow-sm, 0 1px 3px 0 rgba(0,0,0,0.1)), 0 0 0 1px rgba(37, 99, 235, 0.1);
    width: 100%;
    box-sizing: border-box;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    user-select: none;
}

.login-btn:hover {
    background: linear-gradient(135deg, var(--color-primary-hover, #1d4ed8) 0%, var(--color-primary-active, #1e40af) 100%);
    border-color: var(--color-primary-hover, #1d4ed8);
    box-shadow: var(--shadow-md, 0 4px 6px -1px rgba(0,0,0,0.1)), 0 0 0 2px rgba(37, 99, 235, 0.15);
}

.login-btn:active {
    transform: scale(0.98);
}

.login-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    background: linear-gradient(135deg, var(--color-primary, #2563eb) 0%, var(--color-primary-hover, #1d4ed8) 100%);
    box-shadow: none;
}

/* ========== 版权信息 ========== */
.login-footer {
    text-align: center;
    font-size: 12px;
    color: var(--text-tertiary, #94a3b8);
    margin-top: 24px;
    line-height: 1.5;
}

/* ========== 响应式 ========== */
@media (max-width: 768px) {
    .login-wrapper {
        padding: 16px;
    }

    .login-card {
        width: calc(100vw - 32px);
        padding: 32px 24px 28px;
    }

    .login-captcha-canvas {
        width: 80px;
    }
}

@media (max-width: 480px) {
    .login-card {
        padding: 28px 20px 24px;
    }

    .login-logo-icon {
        width: 38px;
        height: 38px;
    }

    .login-logo-title {
        font-size: 18px;
    }

    .login-captcha-canvas {
        width: 72px;
    }
}