:root {
    --login-bg: #ffffff;
    --login-card-bg: #f8f9fa;
    --login-text: #24292f;
    --login-text-muted: #656d76;
    --login-border: #d0d7de;
    --login-input-bg: #ffffff;
    --login-input-border: #d0d7de;
    --login-input-text: #24292f;
    --login-icon-color: #656d76;
    --login-link: #0969da;
    --login-link-hover: #0550ae;
    --login-divider: #d0d7de;
    --login-social-bg: #f6f8fa;
    --login-social-border: #d0d7de;
    --login-social-hover: #eaeef2;
}
html.dark-mode {
    --login-bg: #0d1117;
    --login-card-bg: #161b22;
    --login-text: #e6edf3;
    --login-text-muted: #8b949e;
    --login-border: #30363d;
    --login-input-bg: #0d1117;
    --login-input-border: #30363d;
    --login-input-text: #e6edf3;
    --login-icon-color: #6e7681;
    --login-link: #58a6ff;
    --login-link-hover: #79c0ff;
    --login-divider: #30363d;
    --login-social-bg: #161b22;
    --login-social-border: #30363d;
    --login-social-hover: #21262d;
}
.login-wrapper {
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 15px;
}
.login-card {
    width: 100%;
    max-width: 440px;
}
.login-card .login-header {
    text-align: center;
    margin-bottom: 32px;
}
.login-card .login-header img {
    display: block;
    margin: auto;
}
.login-card .login-header .login-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    background: linear-gradient(135deg, #1f6feb, #58a6ff);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    font-size: 28px;
    color: #fff;
}
.login-card .login-header h2 {
    font-size: 24px;
    font-weight: 600;
    margin: 0 0 6px 0;
    color: var(--login-text);
}
.login-card .login-header p {
    font-size: 14px;
    color: var(--login-text-muted);
    margin: 0;
}
.login-card .login-header .back-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--login-link);
    text-decoration: none;
    margin-bottom: 16px;
    transition: color .2s;
    float: left;
}
.login-card .login-header .back-link:hover {
    color: var(--login-link-hover);
}
.login-card .login-form .form-group {
    margin-bottom: 20px;
}
.login-card .login-form .form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--login-text);
    margin-bottom: 6px;
}
.login-card .login-form .input-icon {
    position: relative;
}
.login-card .login-form .input-icon i {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--login-icon-color);
    font-size: 16px;
    z-index: 2;
    pointer-events: none;
}
.login-card .login-form .input-icon input {
    padding-left: 42px;
}
.login-card .login-form .form-control {
    height: 46px;
    font-size: 15px;
    background: var(--login-input-bg);
    border: 1px solid var(--login-input-border);
    color: var(--login-input-text);
    border-radius: 8px;
    transition: border-color .2s, box-shadow .2s;
}
.login-card .login-form .form-control:focus {
    border-color: var(--login-link);
    box-shadow: 0 0 0 3px rgba(88,166,255,.15);
}
.login-card .login-form select.form-control {
    height: 46px;
    font-size: 15px;
    background: var(--login-input-bg);
    border: 1px solid var(--login-input-border);
    color: var(--login-input-text);
    border-radius: 8px;
    appearance: auto;
    cursor: pointer;
}
.login-card .login-form select.form-control option {
    background: var(--login-card-bg);
    color: var(--login-text);
}
.login-card .login-form .form-row {
    display: flex;
    gap: 16px;
}
.login-card .login-form .form-row .form-group {
    flex: 1;
}
.login-card .login-form .btn-login {
    width: 100%;
    height: 46px;
    font-size: 15px;
    font-weight: 600;
    border-radius: 8px;
    background: linear-gradient(135deg, #238636, #2ea043);
    border: none;
    color: #fff;
    transition: opacity .2s;
}
.login-card .login-form .btn-login:hover {
    opacity: .9;
}
.login-card .login-form .form-options {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}
.login-card .login-form .form-options .remember {
    display: flex;
    align-items: center;
    gap: 8px;
}
.login-card .login-form .form-options .remember input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--login-link);
    cursor: pointer;
}
.login-card .login-form .form-options .remember label {
    font-size: 13px;
    color: var(--login-text-muted);
    margin: 0;
    cursor: pointer;
}
.login-card .login-form .form-options a {
    font-size: 13px;
    color: var(--login-link);
    text-decoration: none;
}
.login-card .login-form .form-options a:hover {
    color: var(--login-link-hover);
}
.login-card .login-register {
    text-align: center;
    margin-top: 20px;
    padding-top: 20px;
    margin-bottom: 20px;
    border-top: 1px solid var(--login-divider);
    font-size: 14px;
    color: var(--login-text-muted);
}
.login-card .login-register a {
    color: var(--login-link);
    font-weight: 500;
    text-decoration: none;
}
.login-card .login-register a:hover {
    color: var(--login-link-hover);
}
.login-card .social-divider {
    display: flex;
    align-items: center;
    margin: 24px 0;
    gap: 12px;
}
.login-card .social-divider::before,
.login-card .social-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--login-divider);
}
.login-card .social-divider span {
    font-size: 12px;
    color: var(--login-icon-color);
    text-transform: uppercase;
    letter-spacing: .5px;
}
.login-card .social-buttons {
    display: flex;
    gap: 10px;
}
.login-card .social-buttons .btn-social {
    flex: 1;
    height: 42px;
    border-radius: 8px;
    border: 1px solid var(--login-social-border);
    background: var(--login-social-bg);
    color: var(--login-text);
    font-size: 13px;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: background .2s, border-color .2s;
    cursor: pointer;
}
.login-card .social-buttons .btn-social:hover {
    background: var(--login-social-hover);
    border-color: var(--login-icon-color);
}
.login-card .social-buttons .btn-social i {
    font-size: 18px;
    width: 32px;
    height: 32px;
    align-content: center;
}
.login-card .social-buttons .btn-social.facebook i { color: #fff; }
.login-card .social-buttons .btn-social.google i { color: #fff; }
.login-card .social-buttons .btn-social.linkedin i { color: #0a66c2; }
.login-card .privacy-link {
    display: block;
    text-align: center;
    margin-top: 16px;
}
.login-card .privacy-link a {
    font-size: 13px;
    color: var(--login-icon-color);
    text-decoration: none;
}
.login-card .privacy-link a:hover {
    color: var(--login-link);
}
.left-back-link {
    width: auto;
    display: block;
}