.login-section {
        min-height: 72vh;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 40px 16px;
        background: #f0f2f5;
        font-family: 'DM Sans', sans-serif;
    }

    .login-card {
        background: #ffffff;
        border-radius: 16px;
        box-shadow: 0 4px 28px rgba(0, 0, 0, 0.11);
        width: 100%;
        max-width: 420px;
        overflow: hidden;
        border: none;
    }

    .login-card-header {
        background: #1a2332;
        padding: 20px 28px 18px;
        text-align: center;
        position: relative;
        border-bottom: 3px solid #f4a61d;
    }

    .login-card-header h4 {
        color: #ffffff;
        font-weight: 700;
        font-size: 1.1rem;
        margin: 0 0 3px;
        letter-spacing: 0.1px;
    }

    .login-card-header p {
        color: rgba(255, 255, 255, 0.60);
        font-size: 0.80rem;
        margin: 0;
    }

    .login-card-body {
        padding: 24px 28px 28px;
    }

    /* Input group */
    .input-group-login {
        position: relative;
        margin-bottom: 14px;
    }

    .input-group-login .input-icon {
        position: absolute;
        left: 13px;
        top: 50%;
        transform: translateY(-50%);
        color: #b0b8c4;
        font-size: 0.95rem;
        z-index: 5;
        pointer-events: none;
        transition: color .2s;
    }

    .input-group-login .form-control {
        padding-left: 37px;
        padding-right: 40px;
        height: 44px;
        border-radius: 10px;
        border: 1.5px solid #dde2ea;
        font-size: 0.88rem;
        font-family: 'DM Sans', sans-serif;
        background: #f8f9fb;
        transition: border-color .2s, background .2s, box-shadow .2s;
        color: #1a2332;
    }

    .input-group-login .form-control:focus {
        border-color: #1a2332;
        background: #fff;
        box-shadow: 0 0 0 3px rgba(26, 35, 50, .09);
        outline: none;
    }

    .input-group-login .form-control:focus~.input-icon,
    .input-group-login:focus-within .input-icon {
        color: #1a2332;
    }

    .input-group-login .form-control.is-invalid {
        border-color: #dc3545;
    }

    /* Toggle password */
    .toggle-password {
        position: absolute;
        right: 11px;
        top: 50%;
        transform: translateY(-50%);
        background: none;
        border: none;
        padding: 0;
        color: #b0b8c4;
        font-size: 0.95rem;
        cursor: pointer;
        z-index: 5;
        transition: color .2s;
        line-height: 1;
    }

    .toggle-password:hover {
        color: #1a2332;
    }

    /* CAPTCHA */
    .captcha-box {
        background: #f8f9fb;
        border: 1.5px solid #dde2ea;
        border-radius: 10px;
        padding: 11px 14px;
        margin-bottom: 14px;
        display: flex;
        align-items: center;
        gap: 10px;
        cursor: pointer;
        transition: border-color .2s, background .2s;
        user-select: none;
    }

    .captcha-box:hover {
        border-color: #1a2332;
        background: #fff;
    }

    .captcha-box .captcha-checkbox {
        width: 20px;
        height: 20px;
        border: 2px solid #ced4da;
        border-radius: 4px;
        display: flex;
        align-items: center;
        justify-content: center;
        transition: all .25s;
        flex-shrink: 0;
        background: #fff;
        font-size: 0;
    }

    .captcha-box.verified .captcha-checkbox {
        background: #198754;
        border-color: #198754;
        font-size: 13px;
        color: #fff;
    }

    .captcha-box .captcha-label {
        font-size: 0.85rem;
        color: #444;
        flex: 1;
    }

    .captcha-box .captcha-brand {
        font-size: 0.68rem;
        color: #9aa3b0;
        text-align: right;
        line-height: 1.4;
    }

    /* Spinner inside captcha */
    .captcha-spinner {
        width: 16px;
        height: 16px;
        border: 2px solid #e2e6ee;
        border-top-color: #1a2332;
        border-radius: 50%;
        animation: spin .7s linear infinite;
        display: none;
        flex-shrink: 0;
    }

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

    /* Login button */
    .btn-login {
        width: 100%;
        height: 44px;
        border-radius: 10px;
        font-size: 0.92rem;
        font-weight: 600;
        font-family: 'DM Sans', sans-serif;
        letter-spacing: 0.2px;
        background: #1a2332;
        border: none;
        color: #111;
        transition: background .2s, transform .15s, box-shadow .2s;
        box-shadow: 0 3px 12px rgba(26, 35, 50, .22);
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 7px;
    }

    .btn-login:hover:not(:disabled) {
        background: #f4a61d;
        color: #1a2332;
        transform: translateY(-1px);
        box-shadow: 0 5px 16px rgba(244, 166, 29, .30);
    }

    .btn-login:active:not(:disabled) {
        transform: translateY(0);
    }

    .btn-login:disabled {
        opacity: .65;
        cursor: not-allowed;
    }

    .btn-login .spinner-border {
        width: 16px;
        height: 16px;
        border-width: 2px;
    }

    /* Divider & links */
    .login-footer-links {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-top: 16px;
        font-size: 0.80rem;
        color: #6c757d;
    }

    .login-footer-links a {
        color: #1a2332;
        text-decoration: none;
        font-weight: 600;
        transition: color .2s;
    }

    .login-footer-links a:hover {
        color: #f4a61d;
        text-decoration: none;
    }

    /* Error text */
    .text-danger-sm {
        font-size: 0.76rem;
        color: #dc3545;
        margin-top: 4px;
        display: block;
    }

    /* Alert */
    .alert-login {
        border-radius: 8px;
        font-size: 0.84rem;
        border: none;
        background: #fff1f2;
        color: #c0392b;
        padding: 9px 13px;
        margin-bottom: 14px;
        display: flex;
        align-items: center;
        gap: 7px;
    }