/**
 * 叒叅管理系统 - 登录页样式 (UI Modernization)
 * 极简现代 + 毛玻璃效果
 */

/* ===== CSS Variables ===== */
:root {
    --login-primary: #4F46E5;
    --login-primary-light: #818CF8;
    --login-primary-dark: #3730A3;
    --login-success: #10B981;
    --login-danger: #EF4444;
    --login-bg-dark: #0F172A;
    --login-bg-mid: #1E293B;
    --login-card-bg: rgba(255, 255, 255, 0.08);
    --login-card-border: rgba(255, 255, 255, 0.12);
    --login-text-primary: #F8FAFC;
    --login-text-secondary: #94A3B8;
    --login-text-muted: #64748B;
    --login-radius: 16px;
    --login-radius-sm: 10px;
    --login-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.4);
    --login-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== Reset & Base ===== */
html {
    height: 100%;
    overflow: hidden;
}

body.signin {
    height: 100%;
    max-height: 100%;
    min-height: 100vh;
    margin: 0;
    padding: 12px 16px;
    box-sizing: border-box;
    background: var(--login-bg-dark);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', sans-serif;
    color: var(--login-text-primary);
    overflow: hidden;
    -webkit-font-smoothing: antialiased;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

/* 主内容区：一屏内垂直居中，不出现页面级滚动条 */
.login-page-stack {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 0 1 auto;
    width: 100%;
    max-width: 100%;
    max-height: 100%;
    min-height: 0;
    overflow: hidden;
}

/* ===== Animated Background ===== */
body.signin::before {
    content: '';
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background:
        radial-gradient(ellipse at 20% 20%, rgba(79, 70, 229, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(16, 185, 129, 0.10) 0%, transparent 50%),
        radial-gradient(ellipse at 60% 10%, rgba(139, 92, 246, 0.08) 0%, transparent 40%);
    animation: bgFloat 20s ease-in-out infinite;
    z-index: 0;
    pointer-events: none;
}

@keyframes bgFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(-2%, 1%) scale(1.02); }
    66% { transform: translate(1%, -1%) scale(0.99); }
}

/* ===== Floating Orbs (decorative) ===== */
body.signin::after {
    content: '';
    position: fixed;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(79, 70, 229, 0.12) 0%, transparent 70%);
    top: -150px;
    right: -100px;
    z-index: 0;
    animation: orbFloat 15s ease-in-out infinite;
    pointer-events: none;
}

@keyframes orbFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-30px); }
}

/* ===== Main Container ===== */
.signinpanel {
    position: relative;
    z-index: 1;
    width: 960px;
    max-width: min(95vw, 960px);
    margin: 0 auto;
    display: flex;
    align-items: stretch;
    gap: 0;
    border-radius: var(--login-radius);
    overflow: hidden;
    box-shadow: var(--login-shadow);
    flex-shrink: 0;
}

/* ===== Left Panel - Brand ===== */
.signinpanel .col-sm-7 {
    flex: 1;
    background: linear-gradient(135deg, var(--login-primary-dark) 0%, var(--login-bg-mid) 100%);
    padding: 36px 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

/* Decorative grid pattern */
.signinpanel .col-sm-7::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
}

/* Decorative circles */
.signinpanel .col-sm-7::after {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.05);
    bottom: -100px;
    right: -60px;
    pointer-events: none;
}

.signin-info {
    position: relative;
    z-index: 1;
}

.signin-info .logopanel {
    float: none;
    width: auto;
    padding: 0;
    background: none;
    margin-bottom: 16px;
}

.signin-info .logopanel img {
    height: 52px;
    filter: drop-shadow(0 4px 12px rgba(79, 70, 229, 0.4));
    transition: var(--login-transition);
}

.signin-info .logopanel img:hover {
    transform: scale(1.05);
    filter: drop-shadow(0 8px 20px rgba(79, 70, 229, 0.6));
}

/* 欢迎标题：覆盖 style.min.css 中 h4=14px，且勿用 .signinpanel strong 误伤品牌字 */
.signin-info h4.login-welcome-title {
    font-size: 24px !important;
    font-weight: 600;
    color: var(--login-text-primary);
    margin: 16px 0 8px;
    letter-spacing: 0.02em;
    line-height: 1.45;
}

.signin-info h4.login-welcome-title .brand-mark {
    display: inline-block;
    font-size: 1em;
    font-weight: 800;
    color: #EEF2FF;
    letter-spacing: 0.14em;
    margin: 0 0.06em;
    text-shadow: 0 0 28px rgba(129, 140, 248, 0.55);
    vertical-align: baseline;
}

.signin-info p {
    color: var(--login-text-secondary);
    font-size: 14px;
    line-height: 1.7;
    margin: 12px 0;
}

.brand-tagline {
    margin-top: 20px;
    padding-top: 18px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.brand-tagline .tagline-item {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--login-text-secondary);
    font-size: 13px;
    margin-bottom: 10px;
}

.brand-tagline .tagline-item i {
    color: var(--login-success);
    font-size: 12px;
}

/* ===== Right Panel - Login Form ===== */
.signinpanel .col-sm-5 {
    flex: 0 0 380px;
    background: var(--login-card-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-left: 1px solid var(--login-card-border);
    padding: 36px 36px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.signinpanel .col-sm-5 form {
    background: transparent;
    border: none;
    box-shadow: none;
    border-radius: 0;
    padding: 0;
    margin: 0;
}

/* ===== Form Title ===== */
.signinpanel .col-sm-5 form h4 {
    font-size: 20px;
    font-weight: 700;
    color: var(--login-text-primary);
    margin: 0 0 8px;
    letter-spacing: -0.3px;
}

.signinpanel .col-sm-5 form p.form-tip {
    color: var(--login-text-muted);
    font-size: 13px;
    margin: 0 0 22px;
}

/* ===== Input Fields ===== */
.signinpanel .col-sm-5 form .form-control {
    display: block;
    width: 100%;
    height: 46px;
    padding: 0 16px 0 44px;
    margin-top: 16px;
    background: rgba(255, 255, 255, 0.06);
    border: 1.5px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--login-radius-sm);
    color: var(--login-text-primary);
    font-size: 14px;
    transition: var(--login-transition);
    box-shadow: none;
    outline: none;
}

.signinpanel .col-sm-5 form .form-control::placeholder {
    color: var(--login-text-muted);
}

.signinpanel .col-sm-5 form .form-control:focus {
    border-color: var(--login-primary-light);
    background: rgba(79, 70, 229, 0.08);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
}

.signinpanel .col-sm-5 form .form-control:focus + .input-icon,
.signinpanel .col-sm-5 form .form-control:focus ~ .input-icon {
    color: var(--login-primary-light);
}

/* Error state */
.signinpanel .col-sm-5 form .form-control.error {
    border-color: var(--login-danger);
    background: rgba(239, 68, 68, 0.06);
}

.signinpanel .col-sm-5 form .form-control.error:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

/* Success state */
.signinpanel .col-sm-5 form .form-control.valid {
    border-color: var(--login-success);
    background: rgba(16, 185, 129, 0.06);
}

/* Input wrapper for icon */
.input-wrapper {
    position: relative;
}

.input-wrapper .input-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--login-text-muted);
    font-size: 16px;
    pointer-events: none;
    transition: var(--login-transition);
    z-index: 1;
}

.input-wrapper .form-control {
    padding-left: 44px;
}

/* Remove background icons from old CSS */
.signinpanel .uname,
.signinpanel .pword {
    background: transparent !important;
}

.signinpanel .code {
    background: rgba(255, 255, 255, 0.06) !important;
    border: 1.5px solid rgba(255, 255, 255, 0.1) !important;
    color: var(--login-text-primary) !important;
    border-radius: var(--login-radius-sm) !important;
    height: 46px !important;
    padding: 0 16px !important;
    margin: 0 !important;
}

.signinpanel .code::placeholder {
    color: var(--login-text-muted);
}

/* ===== Captcha Row ===== */
.signinpanel .row.m-t {
    margin-top: 16px !important;
    display: flex;
    align-items: stretch;
    gap: 12px;
}

.signinpanel .row.m-t .col-xs-6 {
    flex: 1;
    padding: 0;
}

.signinpanel .row.m-t .col-xs-6:last-child {
    flex: 0 0 120px;
}

.signinpanel .row.m-t .code {
    width: 100%;
    height: 46px;
}

.signinpanel .row.m-t .imgcode {
    width: 100%;
    height: 46px;
    border-radius: var(--login-radius-sm);
    border: 1.5px solid rgba(255, 255, 255, 0.1);
    cursor: pointer;
    transition: var(--login-transition);
    object-fit: cover;
}

.signinpanel .row.m-t .imgcode:hover {
    border-color: var(--login-primary-light);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
}

/* ===== Remember Me ===== */
.signinpanel .checkbox-custom {
    position: relative;
    padding: 0;
    margin: 20px 0 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.signinpanel .checkbox-custom input[type="checkbox"] {
    opacity: 1;
    position: static;
    width: 16px;
    height: 16px;
    margin: 0;
    cursor: pointer;
    accent-color: var(--login-primary);
}

.signinpanel .checkbox-custom label {
    color: var(--login-text-secondary);
    font-size: 13px;
    cursor: pointer;
    margin: 0;
    line-height: 1;
}

.signinpanel .checkbox-custom label::before,
.signinpanel .checkbox-custom input[type="checkbox"]:checked + label:after {
    display: none;
}

/* ===== Submit Button ===== */
.signinpanel .btn {
    margin-top: 24px;
    height: 48px;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.5px;
    border-radius: var(--login-radius-sm);
    border: none;
    background: linear-gradient(135deg, var(--login-primary) 0%, var(--login-primary-dark) 100%);
    color: #fff;
    cursor: pointer;
    transition: var(--login-transition);
    position: relative;
    overflow: hidden;
}

.signinpanel .btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
    transition: left 0.5s ease;
}

.signinpanel .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(79, 70, 229, 0.4);
    background: linear-gradient(135deg, var(--login-primary-light) 0%, var(--login-primary) 100%);
}

.signinpanel .btn:hover::before {
    left: 100%;
}

.signinpanel .btn:active {
    transform: translateY(0);
    box-shadow: 0 4px 15px rgba(79, 70, 229, 0.3);
}

.signinpanel .btn.loading {
    pointer-events: none;
    opacity: 0.8;
}

/* ===== Register Link（仅表单下方提示，勿写 .signinpanel strong 以免压小左侧标题） ===== */
.signinpanel .login-register-hint strong {
    font-size: 13px;
    color: var(--login-text-secondary);
    font-weight: 500;
}

.signinpanel .login-register-hint strong a {
    color: var(--login-primary-light);
    text-decoration: none;
    font-weight: 600;
    transition: var(--login-transition);
    border-bottom: 1px solid transparent;
}

.signinpanel .login-register-hint strong a:hover {
    color: #fff;
    border-bottom-color: var(--login-primary-light);
}

/* ===== Footer ===== */
.signup-footer {
    position: relative;
    z-index: 1;
    border-top: none;
    margin: 10px 0 0;
    padding-top: 8px;
    text-align: center;
    flex-shrink: 0;
}

.signup-footer .pull-left,
.signup-footer .pull-right {
    float: none !important;
    color: var(--login-text-muted);
    font-size: 12px;
    line-height: 1.6;
}

/* ===== Error label ===== */
label.error {
    position: static !important;
    color: var(--login-danger) !important;
    font-size: 12px !important;
    margin-top: 6px;
    display: block !important;
    background: none !important;
    padding: 0 !important;
    font-weight: 400 !important;
}

/* ===== Layer overrides for dark theme ===== */
body .layer-ext-moon-msg[type="dialog"] {
    min-width: 100px !important;
}

body .layer-ext-moon-msg {
    background-color: rgba(15, 23, 42, 0.9) !important;
    color: #fff !important;
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
    backdrop-filter: blur(10px) !important;
    border-radius: var(--login-radius-sm) !important;
}

body .layer-ext-moon-msg .layui-layer-content {
    padding: 12px 25px;
    text-align: center;
    font-size: 14px;
}

/* ===== Responsive ===== */
@media screen and (max-width: 768px) {
    body.signin {
        padding: 0 0 40px;
        justify-content: flex-start;
        overflow-y: auto;
    }

    html {
        overflow-y: auto;
    }

    .login-page-stack {
        overflow-y: visible;
        flex: 1 1 auto;
        justify-content: flex-start;
        padding: 20px 0 0;
    }

    .signinpanel {
        width: 100%;
        max-width: 100vw;
        margin: 0;
        border-radius: 0;
        min-height: 0;
        flex-shrink: 0;
        flex-direction: column;
    }

    .signup-footer {
        position: static;
        padding: 12px 0 0;
    }

    .signinpanel .col-sm-7 {
        flex: 0 0 auto;
        padding: 40px 32px;
    }

    .signinpanel .col-sm-7 .brand-tagline {
        display: none;
    }

    .signinpanel .col-sm-5 {
        flex: 1;
        padding: 32px;
        border-left: none;
        border-top: 1px solid var(--login-card-border);
    }

    .signinpanel .row.m-t {
        flex-wrap: nowrap;
    }

    .signinpanel .row.m-t .col-xs-6:last-child {
        flex: 0 0 100px;
    }
}

@media screen and (max-width: 480px) {
    .signinpanel .col-sm-5 {
        padding: 24px 20px;
    }

    .signinpanel .col-sm-5 form .form-control {
        height: 44px;
    }

    .signinpanel .btn {
        height: 44px;
        font-size: 14px;
    }
}